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homebred_a hen_n i_o believe_v it_o be_v easy_a to_o guess_v very_o near_o at_o all_o the_o rest_n chap._n xxxviii_o of_o prescience_n of_o future_a event_n providence_n the_o know_v of_o thing_n never_o see_v before_o and_o such_o other_o action_n observe_v in_o some_o live_a creature_n which_o seem_v to_o be_v even_o above_o the_o reason_n that_o be_v in_o man_n himself_o the_o four_o and_o last_o kind_n of_o action_n which_o we_o may_v with_o man_n astonishment_n observe_v among_o beast_n i_o conceive_v will_v avail_v little_a to_o infer_v that_o the_o creature_n which_o do_v they_o be_v endue_v with_o reason_n and_o understanding_n for_o such_o they_o be_v as_o if_o we_o shall_v admit_v that_o yet_o we_o shall_v still_o be_v as_o far_o to_o seek_v for_o the_o cause_n whence_o they_o proceed_v what_o shall_v move_v a_o lamb_n to_o tremble_v at_o the_o first_o sight_n of_o a_o wolf_n or_o a_o hen_n at_o a_o kite_n never_o before_o see_v neither_o the_o grime_a mastiff_n nor_o the_o 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the_o quiet_a same_o proceed_n of_o reason_n when_o it_o work_v with_o great_a strength_n and_o vigour_n as_o well_o know_v that_o its_o efficaciousness_n consist_v not_o in_o the_o multitude_n of_o part_n which_o passion_n breed_v but_o in_o the_o well_o order_v of_o those_o it_o already_o have_v under_o its_o command_n whereas_o the_o strength_n of_o quantity_n and_o the_o increase_n of_o its_o strength_n consist_v in_o the_o multitude_n of_o its_o part_n as_o will_v evident_o appear_v to_o who_o shall_v consider_v this_o point_n deep_o thus_o we_o have_v in_o a_o summary_n manner_n go_v through_o all_o the_o treatise_n operation_n of_o the_o soul_n which_o in_o the_o begin_n of_o this_o latter_a treatise_n we_o heap_v together_o as_o material_n wherewith_o to_o raise_v a_o immaterial_a and_o spiritual_a building_n neither_o i_o hope_v will_v our_o reader_n be_v offend_v with_o we_o for_o be_v more_o succinct_a and_o concise_a in_o all_o our_o discourse_n concern_v our_o soul_n 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excite_v those_o thought_n he_o shall_v have_v for_o this_o purpose_n and_o to_o steer_v they_o the_o right_a way_n than_o by_o much_o and_o voluminous_a read_n or_o hear_v long_o and_o polish_a discourse_n on_o this_o subject_n for_o my_o part_n if_o what_o i_o have_v here_o say_v shall_v to_o any_o man_n appear_v not_o sufficient_a to_o convince_v that_o our_o soul_n be_v of_o a_o spiritual_a and_o far_o different_a nature_n from_o all_o such_o thing_n as_o in_o our_o first_o treatise_n we_o have_v discourse_v on_o and_o take_v for_o the_o head_n and_o most_o general_a kind_n of_o body_n to_o which_o all_o other_o particular_a one_o and_o their_o motion_n may_v be_v reduce_v i_o shall_v become_v a_o suitor_n to_o he_o to_o take_v this_o subject_a into_o his_o handle_n where_o it_o begin_v to_o be_v unwieldy_a for_o i_o and_o to_o declare_v to_o we_o upon_o the_o principle_n we_o have_v settle_v in_o the_o first_o treatise_n and_o upon_o consider_v the_o nature_n of_o a_o body_n which_o be_v the_o first_o of_o all_o our_o notion_n how_o these_o particular_n we_o have_v reflect_v upon_o in_o man_n action_n can_v be_v draw_v out_o of_o they_o for_o i_o can_v find_v no_o possible_a mean_n to_o link_v they_o together_o a_o vast_a and_o impenetrable_a ocean_n lie_v between_o the_o discovery_n we_o have_v make_v on_o each_o side_n of_o its_o shore_n which_o forbid_v all_o commerce_n between_o they_o at_o least_o on_o the_o dark_a body_n side_n which_o have_v not_o wing_n to_o soar_v into_o the_o region_n of_o intellectual_a light_n by_o those_o principle_n we_o have_v trace_v out_o the_o course_n and_o progress_n of_o all_o operation_n belong_v to_o sense_n and_o how_o beast_n do_v or_o may_v perform_v all_o their_o action_n even_o to_o their_o most_o refine_a and_o subtle_a operation_n but_o beyond_o
soul_n aim_v be_v evident_a since_o the_o perfection_n of_o every_o thing_n in_o the_o end_n for_o which_o it_o be_v make_v the_o perfection_n then_o and_o end_n of_o the_o soul_n be_v evidence_n &_o she_o be_v capable_a of_o infinite_a evidence_n let_v we_o inquire_v whether_o in_o this_o life_n she_o may_v compass_v it_o or_o no._n to_o determine_v this_o question_n let_v we_o compare_v infinite_a evidence_n to_o that_o evidence_n which_o the_o great_a and_o most_o know_a man_n that_o ever_o live_v have_v acquire_v by_o the_o work_n of_o nature_n alone_o or_o to_o the_o evidence_n which_o by_o aim_n we_o may_v imagine_v possible_a ever_o to_o happen_v any_o one_o man_n shall_v arrive_v to_o and_o balance_v they_o well_o together_o let_v we_o judge_n whether_o all_o that_o any_o man_n can_v know_v here_o be_v not_o in_o respect_n of_o what_o a_o man_n soul_n be_v capable_a of_o to_o be_v style_v as_o nothing_o and_o deseru_v not_o the_o name_n of_o evidence_n nor_o to_o be_v account_v 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not_o then_o make_v difficulty_n to_o believe_v that_o the_o wise_a and_o learnede_a man_n in_o the_o world_n have_v reason_n to_o profess_v with_o the_o father_n of_o philosopher_n that_o indeed_o they_o know_v nothing_o and_o if_o so_o how_o far_o be_v they_o from_o that_o happiness_n &_o perfection_n which_o consist_v in_o know_v all_o thing_n of_o which_o full_a sea_n we_o nevertheless_o find_v even_o in_o this_o low_a ebb_n our_o soul_n be_v a_o channel_n capable_a and_o be_v frame_v a_o fit_a vessel_n and_o instrument_n to_o receive_v it_o when_o the_o tide_n shall_v come_v in_o upon_o it_o which_o we_o be_v sure_a it_o can_v not_o do_v till_o the_o bank_n of_o our_o body_n which_o hinder_v it_o be_v break_v down_o this_o last_o consideration_n without_o doubt_n have_v add_v no_o small_a move_v corroboration_n to_o our_o former_a proof_n which_o be_v so_o numerous_a &_o so_o clear_a as_o peradventure_o it_o may_v appear_v superfluous_a to_o say_v any_o more_o to_o this_o point_n since_o one_o convince_a argument_n establish_v the_o verity_n of_o a_o conclusion_n as_o efficacious_o as_o a_o hundred_o &_o therefore_o mathematician_n use_v but_o one_o single_a proof_n in_o all_o their_o proposition_n after_o which_o other_o supernumerary_a one_o will_v be_v but_o tedious_a nevertheless_o since_o all_o the_o several_a way_n by_o which_o we_o may_v look_v into_o the_o nature_n of_o our_o soul_n the_o important_a subject_n we_o can_v busy_v our_o thought_n upon_o can_v fail_v of_o be_v please_a and_o delightful_a to_o we_o we_o must_v not_o omit_v to_o reflect_v a_o little_a upon_o that_o great_a property_n of_o our_o soul_n by_o which_o she_o be_v able_a to_o move_v &_o to_o work_v without_o herself_o be_v move_v or_o touch_v to_o which_o add_v that_o all_o life_n consist_v in_o motion_n and_o that_o all_o motion_n of_o body_n come_v from_o some_o other_o thing_n without_o they_o we_o may_v evident_o conclude_v that_o our_o soul_n who_o can_v move_v withot_v 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inconsiderable_a so_o that_o better_a or_o worse_o in_o this_o life_n have_v not_o any_o appearance_n of_o difference_n between_o they_o at_o least_o not_o enough_o to_o make_v he_o labour_v with_o paâ—n_n to_o compass_v the_o one_o and_o eschew_v the_o other_o and_o for_o that_o end_n to_o cross_v his_o present_a inclination_n in_o any_o thing_n and_o engage_v himself_o in_o any_o the_o least_o difficult_a task_n and_o so_o it_o will_v ensue_v that_o if_o to_o a_o understand_a man_n some_o course_n or_o action_n be_v propose_v as_o better_a than_o that_o he_o be_v go_v about_o or_o for_o the_o instant_n have_v a_o mind_n to_o he_o will_v relish_v it_o as_o a_o great_a merchant_n or_o a_o banker_n will_v do_v who_o deal_v for_o million_o one_o shall_v press_v with_o earnestness_n to_o change_v his_o resolve_a course_n for_o the_o gain_n of_o a_o farthing_n more_o this_o way_n than_o the_o other_o which_o be_v inconsiderable_a he_o will_v not_o trouble_v his_o head_n with_o it_o nor_o 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refraction_n 6._o a_o answer_n to_o the_o argument_n bring_v in_o favour_n of_o mounseur_fw-fr des_fw-fr cartes_n his_o opinion_n 7._o the_o true_a cause_n of_o refraction_n of_o light_n both_o at_o its_o entrance_n and_o at_o its_o go_v out_o from_o the_o refle_a body_n 8._o a_o general_a rule_n to_o know_v the_o nature_n of_o reflection_n and_o refraction_n in_o all_o sort_n of_o surface_n 9_o a_o body_n of_o great_a part_n and_o great_a pore_n make_v a_o great_a refraction_n than_o one_o of_o lesser_a part_n and_o lesser_a pore_n 10._o a_o confirmation_n of_o the_o former_a doctrine_n out_o of_o the_o nature_n of_o body_n that_o refract_v light_a chap._n fourteen_o of_o the_o composition_n quality_n &_o generation_n of_o mix_a body_n 1._o the_o connexion_n of_o this_o chapter_n with_o the_o rest_n and_o the_o author_n intent_n in_o it_o 2._o that_o there_o be_v a_o least_o size_n of_o body_n and_o that_o this_o least_o size_n be_v find_v in_o fire_n 3._o the_o first_o conjunction_n of_o part_n be_v in_o body_n of_o least_o size_n and_o it_o be_v make_v by_o the_o force_n of_o quantity_n 4._o the_o second_o sort_n of_o conjunction_n be_v compactedness_n in_o simple_a element_n and_o it_o proceed_v from_o density_n 5._o the_o three_o conjunction_n be_v of_o part_n of_o different_a element_n and_o it_o proceed_v from_o quantity_n and_o density_n together_o 6._o the_o reason_n why_o liquid_a body_n do_v easy_o join_v together_o and_o dry_a one_o difficult_o 7._o that_o no_o two_o hard_a body_n can_v touch_v one_o another_o immediate_o 8._o how_o mix_v body_n be_v frame_v in_o general_n 9_o the_o cause_n of_o the_o several_a degree_n of_o solidity_n in_o mix_a body_n 10._o the_o rule_n whereto_o be_v reduce_v all_o the_o several_a combination_n of_o element_n in_o compound_v of_o mix_a body_n 11._o earth_n and_o water_n be_v the_o basis_n of_o all_o permanent_a mix_a body_n 12._o what_o kind_n of_o body_n those_o be_v where_o water_n be_v the_o basis_n and_o earth_n the_o predominant_a element_n over_o the_o other_o two_o 13._o of_o those_o body_n where_o water_n be_v the_o basis_n air_n be_v the_o predominant_a element_n 14._o what_o kind_n of_o body_n result_v where_o water_n be_v the_o basis_n and_o fire_n the_o predominant_a element_n 15._o of_o those_o body_n where_o water_n be_v in_o excess_n it_o alone_o be_v both_o the_o basis_n and_o the_o predominant_a element_n 16._o of_o those_o body_n where_o earth_n alone_o be_v the_o basis_n and_o also_o the_o predominant_a in_o excess_n over_o the_o other_o three_o element_n 17._o of_o those_o body_n where_o earth_n be_v the_o basis_n &_o water_n be_v the_o predominant_a element_n over_o the_o other_o two_o 18._o of_o those_o body_n where_o earth_n be_v the_o basis_n air_n be_v the_o predominant_a 19_o of_o those_o body_n where_o earth_n be_v the_o basis_n fire_n be_v the_o predominant_a 20._o all_o the_o second_o quality_n of_o mix_a body_n arise_v from_o several_a combination_n of_o the_o first_o quality_n and_o be_v at_o last_o resolve_v into_o several_a degree_n of_o rarity_n &_o density_n 21._o that_o in_o the_o planet_n &_o star_n there_o be_v a_o like_a variety_n of_o mix_a body_n cause_v by_o light_n as_o here_o on_o earth_n 22._o in_o what_o manner_n the_o element_n work_v on_o one_o another_o in_o the_o composition_n of_o mix_a body_n and_o in_o particular_a fire_n which_o be_v the_o most_o active_a 23._o a_o particular_a declaration_n touch_v the_o generation_n of_o metal_n chap._n xv._n of_o the_o dissolution_n of_o mix_a body_n 1._o why_o some_o body_n be_v brittle_a and_o other_o tough_a or_o apt_a to_o withstand_v outward_a violence_n the_o first_o instrument_n to_o dissolve_v mix_v body_n 2._o how_o outward_a violence_n do_v work_v on_o the_o most_o compact_a body_n 3._o the_o several_a effect_n of_o fire_n the_o second_o and_o chief_a instrument_n to_o dissolve_v all_o compound_a body_n 4._o the_o reason_n why_o some_o body_n be_v not_o dissolve_v by_o fire_n 5._o the_o reason_n why_o fire_n melt_v gold_n but_o can_v consume_v it_o 6._o why_o lead_n be_v easy_o consume_v and_o calcint_v by_o fire_n 7._o why_o and_o how_o some_o body_n be_v divide_v by_o fire_n into_o spirit_n water_n oil_n salt_n and_o earth_n and_o what_o those_o part_n be_v 8._o how_o water_n the_o three_o instrument_n to_o dissolve_v body_n dissolu_v calx_fw-la into_o salt_n and_o so_o into_o terra_fw-la damnata_fw-la 9_o how_o water_n mingle_v with_o salt_n become_v a_o most_o powerful_a agent_n to_o dissolve_v other_o body_n 10._o how_o putrefaction_n be_v cause_v chap._n xvi_o a_o explication_n of_o certain_a maxim_n touch_v the_o operation_n and_o qualy_n of_o body_n and_o whether_o the_o element_n be_v find_v pure_a in_o any_o part_n of_o the_o world_n 1._o what_o be_v the_o sphere_n of_o activity_n in_o corporeal_a agent_n 2._o the_o reason_n why_o no_o body_n can_v work_v in_o distance_n 3._o a_o objection_n answer_v against_o the_o manner_n of_o explicate_v the_o former_a axiom_n 4._o of_o re-action_n and_o first_o in_o pure_a local_a motion_n that_o each_o agent_n must_v suffer_v in_o act_v and_o act_n in_o suffering_n 5._o the_o former_a doctrine_n apply_v to_o other_o local_a motion_n design_v by_o particular_a name_n and_o that_o suisseths_n argument_n be_v of_o no_o force_n against_o this_o way_n of_o doctrine_n 6._o why_o some_o notion_n do_v admit_v of_o intention_n and_o remission_n and_o other_o not_o 7._o that_o in_o every_o part_n of_o our_o habitable_a world_n all_o the_o four_o element_n be_v find_v pure_a in_o small_a atom_n but_o not_o in_o any_o great_a bulk_n chap._n xvii_o of_o rarefaction_n and_o condensation_n the_o two_o first_o motion_n of_o particular_a body_n 1._o the_o author_n intent_n in_o this_o and_o the_o follow_a chapter_n 2._o that_o body_n may_v be_v rarify_v both_o by_o outward_a and_o inward_a heart_n and_o how_o this_o be_v perform_v 3._o of_o the_o great_a effect_n of_o rarefaction_n 4._o the_o first_o manner_n of_o condensation_n by_o heat_n 5._o the_o second_o manner_n of_o condensation_n by_o cold_a 6._o that_o ice_n be_v not_o water_v rarify_v but_o condense_v 7._o how_o wind_n snow_n and_o hail_n be_v make_v and_o wind_n by_o rain_n allay_v 8._o how_o part_n of_o the_o same_o or_o divers_a body_n be_v join_v more_o strong_o together_o by_o condensation_n 9_o vacuity_n can_v be_v the_o reason_n why_o water_n impregnate_v to_o the_o full_a with_o one_o kind_n of_o salt_n will_v notwithstanding_o receive_v more_o of_o another_o 10._o the_o true_a reason_n of_o the_o former_a effect_n 11._o the_o reason_n why_o body_n of_o the_o same_o nature_n do_v join_v more_o easy_o together_o than_o other_o chap._n xviii_o of_o another_o motion_n belong_v to_o particular_a body_n call_v attraction_n and_o of_o certain_a operation_n term_v magical_a 1._o what_o attraction_n be_v and_o from_o whence_o it_o proceed_v 2._o the_o true_a sense_n of_o the_o maxim_n that_o nature_n abhor_v from_o vacuity_n 3._o the_o true_a reason_n of_o attraction_n 4._o water_n may_v be_v bring_v by_o the_o force_n of_o attraction_n to_o what_o height_n soever_o 5._o the_o doctrine_n touch_v the_o attraction_n of_o water_n in_o syphon_n 6._o that_o the_o syphon_n do_v not_o prove_v water_n to_o weigh_v in_o its_o own_o orb_n 7._o concern_v attraction_n cause_v by_o fire_n 8._o concern_v attraction_n make_v by_o virture_n of_o hot_a body_n amulet_n &c_n &c_n 9_o the_o natural_a reason_n give_v for_o divers_a operation_n esteem_v by_o some_o to_o be_v magical_a chap._n xix_o of_o three_o other_o motion_n belong_v to_o particular_a body_n filtration_n restitution_n and_o electrical_a attraction_n 1._o what_o be_v filtration_n and_o how_o it_o be_v effect_v 2._o what_o cause_v the_o water_n in_o filtration_n to_o ascend_v 3._o why_o the_o filter_n will_v not_o drop_v unless_o the_o label_n hang_v low_a than_o the_o water_n 4._o of_o the_o motion_n of_o restitution_n and_o why_o some_o body_n stand_v bend_v other_o not_o 5._o why_o some_o body_n return_v only_o in_o part_n to_o their_o natural_a figure_n other_o entire_o 6._o concern_v the_o nature_n of_o those_o body_n which_o shrink_v and_o stretch_v 7._o how_o great_a and_o wonderful_a effect_n proceed_v from_o small_a plain_a and_o simple_a principle_n 8._o concern_v electrical_a attratâ—on_n and_o the_o cause_n of_o it_o 9_o cabeus_n his_o opinion_n refute_v concern_v the_o cause_n of_o electrical_a motion_n chap._n xx._n of_o the_o lodestone_n generation_n and_o its_o particulas_fw-la motion_n 1._o the_o extreme_a heat_n of_o the_o sun_n under_o the_o zodiac_n draw_v a_o stream_n of_o air_n from_o each_o pole_n into_o the_o torrid_a zone_n 2._o the_o atom_n of_o these_o two_o stream_n come_v together_o be_v apt_a to_o incorporate_v with_o one_o another_o 3._o by_o the_o meeting_n and_o mingle_v together_o
read_v herself_o at_o large_a here_o do_v descry_v a_o object_n worthy_a her_o far-spreading_a eye_n and_o of_o her_o nature_n such_o true_a notion_n frame_v that_o she_o salute_v herself_o with_o a_o new_a name_n here_o she_o may_v scan_v her_o thought_n view_v either_o state_n how_o link_v to_o matter_n how_o when_o separate_a through_o fancy_n glass_n her_o noble_a essence_n spy_v a_o shoreless_a sea_n of_o immortality_n in_o which_o unbounded_a main_n you_o sail_v so_o fast_o till_o you_o both_o lose_v and_o find_v yourself_o at_o last_o yet_o sir_n you_o be_v just_o accuse_v by_o this_o age_n plain_a truth_n in_o difficulty_n to_o engage_v what_o need_v you_o to_o such_o nice_a cost_n proceed_v a_o quality_n at_o first_o word_n have_v do_v the_o deed_n but_o you_o may_v noble_o pity_v they_o and_o grant_v nought_n easy_a than_o to_o be_v ignorant_a they_o take_v the_o surface_n of_o the_o doubt_n while_o you_o laborious_o first_o pierce_v then_o dig_v it_o through_o in_o move_a question_n talk_v not_o truth_n be_v their_o aim_n as_o lord_n start_v hare_n not_o for_o the_o prey_n but_o game_n they_o spring_v then_o stoop_v at_o some_o slight_n butterf_o thus_o some_o in_o hunt_v only_o love_v the_o cry_n this_o be_v the_o utmost_a art_n with_o which_o they_o be_v store_v to_o call_v truth_n some_o unanswerable_a word_n which_o hold_v the_o field_n until_o some_o active_a wit_n work_v at_o fanci_n mintage_n chance_v to_o hit_v upon_o a_o quaint_a which_o cut_v that_o in_o twain_o and_o triumph_n till_o a_o three_o cleave_v it_o again_o thus_o these_o tenedian_a axe_n hew_v each_o other_o like_o cadmu_n arm_a crop_n each_o slay_v his_o brother_n since_o with_o distinction_n they_o so_o nice_o pare_v they_o subtilise_v it_o quite_o away_o to_o air_n these_o author_n yet_o voluminously-vain_a stuff_v library_n with_o monster_n of_o their_o brain_n who_o fruitless_a toil_n be_v but_o the_o same_o or_o less_o to_o plant_v bryar-field_n to_o enlarge_v a_o 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from_o its_o nature_n by_o suffer_v the_o like_a effect_n yet_o dilate_a water_n will_v in_o proportion_n moisten_v more_o then_o dilate_a fire_n will_v burn_v for_o the_o rarefaction_n of_o water_n bring_v it_o near_o to_o the_o nature_n of_o air_n who_o chief_a propriety_n be_v moisture_n and_o the_o fire_n that_o accompany_v it_o when_o it_o raise_v it_o into_o steam_n give_v it_o more_o powerful_a ingression_n into_o what_o body_n it_o meet_v withal_o whereas_o fire_n when_o it_o be_v very_o pure_a and_o at_o entire_a liberty_n to_o stretch_v and_o spread_v itself_o as_o wide_a as_o the_o nature_n of_o it_o will_v carry_v it_o get_v no_o advantage_n of_o burn_v by_o its_o mixture_n with_o air_n and_o although_o it_o gain_v force_v by_o its_o purity_n yet_o by_o reason_n of_o its_o extreme_a rarefaction_n it_o must_v needs_o be_v extreme_o faint_a but_o if_o by_o the_o help_n of_o glass_n you_o will_v gather_v into_o less_o room_n what_o be_v diffuse_v into_o a_o great_a one_o and_o so_o condense_a it_o as_o much_o as_o it_o be_v for_o example_n in_o the_o flame_n of_o a_o candle_n then_o that_o fire_n or_o compact_a light_n will_v burn_v much_o more_o forcible_o than_o so_o much_o flame_n for_o there_o be_v as_o much_o of_o it_o in_o quantity_n except_v what_o be_v lose_v in_o the_o carriage_n of_o it_o and_o it_o be_v hold_v in_o together_o in_o as_o little_a room_n and_o it_o have_v this_o advantage_n beside_o that_o it_o be_v clog_v with_o no_o gross_a body_n to_o hinder_v the_o activity_n of_o it_o it_o seem_v to_o i_o now_o that_o the_o very_o answer_v this_o objection_n do_v beside_o repel_v the_o force_n of_o it_o evident_o prove_v that_o fire_n light_n be_v nothing_o but_o fire_n in_o its_o own_o nature_n and_o exceed_o dilate_a for_o if_o you_o suppose_v fire_n for_o example_n the_o flame_n of_o a_o candle_n to_o be_v stretch_v out_o to_o the_o utmost_a expansion_n that_o you_o may_v well_o imagine_v such_o a_o gross_a body_n be_v capable_a of_o it_o 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shall_v burn_v like_o that_o grosser_n substance_n which_o from_o do_v so_o they_o call_v fire_n nor_o doubt_v but_o that_o they_o may_v be_v the_o same_o thing_n more_o or_o less_o attenuate_v as_o leaf-gold_n that_o fly_v in_o the_o air_n as_o light_a as_o down_o be_v as_o true_o gold_n as_o that_o in_o a_o ingot_a which_o be_v heavy_a than_o any_o other_o substance_n fall_v most_o forcible_o to_o the_o ground_n what_o we_o have_v say_v of_o the_o unburning_a fire_n which_o we_o call_v light_n stream_v from_o the_o flame_n of_o a_o candle_n may_v easy_o be_v apply_v to_o all_o other_o light_v deprive_v of_o sensible_a heat_n whereof_o some_o appear_v with_o flame_n other_o without_o it_o of_o the_o first_o sort_n be_v the_o innoxious_a flame_n that_o be_v often_o see_v on_o the_o hair_n of_o man_n head_n and_o horse_n mane_n on_o the_o mast_n of_o ship_n over_o grave_n and_o fat_a marish_a ground_n and_o the_o like_a and_o of_o the_o latter_a sort_n be_v glow-worm_n and_o the_o light-conserving_a stone_n rot_a wood_n some_o kind_n of_o fish_n and_o of_o flesh_n when_o they_o begin_v to_o putrify_v and_o some_o other_o thing_n of_o the_o like_a nature_n now_o to_o answer_v the_o second_o part_n of_o this_o objection_n that_o we_o 6._o daily_o see_v great_a heat_n without_o any_o light_n as_o well_o as_o much_o light_n without_o any_o heat_n and_o therefore_o light_a and_o fire_n can_v be_v the_o light_n same_o thing_n you_o may_v call_v to_o mind_n how_o dense_n body_n be_v capable_a of_o great_a quantity_n of_o rare_a one_o and_o thereby_o it_o come_v to_o pass_v that_o body_n which_o repugn_v to_o the_o dilatation_n of_o flame_n may_v nevertheless_o have_v much_o fire_n enclose_v in_o they_o as_o in_o a_o stove_n let_v the_o fire_n be_v never_o so_o great_a yet_o it_o appear_v not_o outward_o to_o the_o sight_n although_o that_o stove_n warm_v all_o the_o room_n near_o it_o so_o when_o many_o little_a part_n of_o heat_n be_v imprison_v in_o as_o many_o 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conceive_v let_v we_o go_v on_o to_o the_o four_o which_o require_v that_o we_o satisfy_v their_o inquisition_n die_v who_o ask_v what_o become_v of_o that_o vast_a body_n of_o shine_a light_n if_o it_o be_v a_o body_n that_o fill_v all_o the_o distance_n between_o heaven_n and_o earth_n and_o vanish_v in_o a_o moment_n assoon_o as_o a_o cloud_n or_o the_o moon_n interpose_v itself_o between_o the_o sun_n and_o we_o or_o that_o the_o sun_n quit_v our_o hemisphere_n no_o sign_n at_o all_o remain_v of_o it_o after_o its_o extinction_n as_o do_v of_o all_o other_o substance_n who_o destruction_n be_v the_o birth_n of_o some_o new_a thing_n whither_o then_o be_v it_o fly_v we_o may_v be_v persuade_v that_o a_o mist_n be_v a_o corporeal_a substance_n because_o it_o turn_v to_o drop_n of_o water_n upon_o the_o twig_n that_o it_o environ_n and_o so_o we_o may_v believe_v light_a to_o be_v fire_n if_o after_o the_o burn_a of_o it_o out_o we_o find_v any_o ash_n rema_v but_o experience_n assure_v we_o that_o after_o it_o be_v extinguish_v it_o leave_v not_o the_o least_o vestigium_fw-la behind_o it_o of_o have_v be_v there_o now_o before_o we_o answer_v this_o objection_n we_o will_v entreat_v our_o adversary_n to_o call_v to_o mind_n how_o we_o have_v in_o our_o solution_n of_o the_o former_a declare_v and_o prove_v that_o the_o light_n which_o for_o example_n shine_v from_o a_o candle_n be_v no_o more_o than_o the_o flame_n be_v from_o whence_o it_o spring_v the_o one_o be_v condense_a and_o the_o other_o dilate_a and_o that_o the_o flame_n be_v in_o a_o perpetual_a flux_n of_o consumption_n about_o the_o circumference_n and_o of_o restauration_n at_o the_o centre_n where_o it_o suck_v in_o the_o fuel_n and_o then_o we_o will_v inquire_v of_o he_o what_o become_v of_o the_o body_n of_o flame_n which_o so_o continual_o die_v and_o be_v renew_v and_o leave_v no_o remainder_n behind_o it_o as_o well_o as_o he_o do_v of_o we_o what_o become_v of_o our_o body_n of_o 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much_o sincerity_n and_o a_o singular_a friend_n of_o i_o tell_v i_o he_o have_v see_v which_o be_v that_o by_o mean_n of_o glass_n make_v in_o a_o very_a particular_a manner_n and_o artificial_o place_v one_o by_o another_o he_o have_v see_v the_o sunbeam_n gather_v together_o and_o precipitate_v down_o into_o a_o brownish_a or_o purplish_a red_a powder_n there_o can_v be_v no_o fallacy_n in_o this_o operation_n for_o nothing_o whatever_o be_v in_o the_o glass_n when_o they_o be_v place_v and_o dispose_v for_o this_o intent_n and_o it_o must_v be_v in_o the_o hot_a time_n of_o the_o year_n else_o the_o effect_n will_v not_o follow_v and_o of_o this_o magistry_n he_o can_v gather_v some_o day_n near_o two_o ounce_n in_o a_o day_n and_o it_o be_v of_o a_o strange_a volative_a nature_n and_o will_v pierce_v and_o imprint_v his_o spiritual_a quality_n into_o gold_n itself_o the_o heavy_a and_o most_o fix_a body_n we_o converse_v withal_o in_o a_o very_a short_a time_n if_o this_o be_v plain_o so_o without_o any_o mistake_n then_o man_n eye_n and_o hand_n may_v tell_v they_o what_o become_v of_o light_n when_o it_o die_v if_o a_o great_a deal_n of_o it_o be_v sweep_v together_o but_o from_o what_o cause_n soever_o this_o experience_n have_v its_o effect_n our_o reason_n may_v be_v satisfy_v with_o what_o we_o have_v say_v above_o for_o i_o confess_v for_o my_o part_n i_o believe_v the_o appear_a body_n may_v be_v something_o that_o come_v along_o with_o the_o sunbeam_n and_o be_v gather_v by_o they_o but_o not_o there_o pure_a substance_n some_o peradventure_o will_v object_v those_o lamp_n which_o both_o ancient_a and_o modern_a writer_n have_v report_v to_o have_v be_v find_v in_o tomb_n and_o urn_n long_a time_n before_o close_v up_o from_o man_n repair_n light_n to_o they_o to_o supply_v they_o with_o new_a fuel_n and_o therefore_o they_o believe_v such_o fire_n to_o feed_v upon_o nothing_o and_o consequent_o to_o be_v inconsumptible_a and_o perpetual_a which_o if_o they_o be_v than_o our_o doctrine_n that_o will_v have_v light_a to_o be_v nothing_o but_o the_o body_n of_o fire_n perpetual_o flow_v from_o his_o centre_n and_o perpetual_a die_a can_v be_v sound_a for_o in_o time_n such_o fire_n will_v necessary_o spend_v themselves_o in_o light_n although_o light_n be_v so_o subtle_a a_o substance_n that_o a_o exceed_o little_a quantity_n of_o fuel_n may_v be_v dilate_v into_o a_o vast_a quantity_n of_o light_n however_o there_o will_v be_v some_o consumption_n which_o how_o imperceptible_a soever_o in_o a_o short_a time_n yet_o after_o a_o multitude_n of_o revolution_n of_o year_n must_v needs_o discover_v itself_o to_o this_o i_o answer_v that_o for_o the_o most_o part_n the_o witness_n who_o testify_v original_o the_o story_n of_o these_o light_n be_v such_o as_o a_o rational_a man_n can_v expect_v from_o they_o that_o exactness_n or_o nicety_n of_o observation_n which_o be_v requisite_a for_o our_o purpose_n for_o they_o be_v usual_o 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of_o local_a motion_n in_o common_a though_o in_o the_o five_o chapter_n we_o make_v only_a earth_n the_o pretender_n succession_n in_o the_o controversy_n against_o fire_n for_o superiority_n in_o activity_n and_o in_o very_a truth_n the_o great_a force_n of_o gravity_n appear_v in_o those_o body_n which_o be_v eminent_o earthy_a nevertheless_o both_o water_n and_o air_n as_o appear_v out_o of_o the_o 4._o chapter_n of_o the_o element_n do_v agree_v with_o earth_n in_o have_v gravity_n and_o gravity_n be_v the_o chief_a virtue_n to_o make_v they_o efficient_n so_o that_o upon_o the_o matter_n this_o plea_n be_v common_a to_o all_o the_o three_o element_n wherefore_o to_o explicate_v this_o virtue_n whereby_o these_o three_o weighty_a element_n work_v let_v we_o call_v to_o mind_n what_o we_o say_v in_o the_o begin_n of_o the_o last_o chapter_n concern_v local_a motion_n to_o wit_n that_o according_a as_o the_o body_n move_v or_o the_o divider_n do_v more_o and_o more_o enter_v into_o the_o divide_a body_n so_o it_o join_v itself_o to_o some_o new_a part_n of_o the_o medium_fw-la or_o divide_v body_n and_o do_v in_o like_a manner_n forsake_v other_o whence_o it_o happen_v that_o in_o every_o part_n of_o motion_n it_o possess_v a_o great_a part_n of_o the_o medium_fw-la then_o itself_o can_v fill_v at_o once_o and_o because_o by_o the_o limitation_n and_o confinedness_n of_o every_o magnitude_n to_o just_a what_o it_o be_v and_o no_o more_o it_o be_v impossible_a that_o a_o lesser_a body_n shall_v at_o once_o equalise_v a_o great_a it_o follow_v that_o this_o division_n or_o motion_n whereby_o a_o body_n attain_v to_o fill_v a_o place_n big_a than_o itself_o must_v be_v do_v successive_o that_o be_v it_o must_v first_o fill_v one_o part_n of_o the_o place_n it_o move_v in_o than_o another_o and_o so_o proceed_v on_o till_o it_o have_v measure_v itself_o with_o every_o part_n of_o the_o place_n from_o the_o first_o beginning_n of_o the_o line_n of_o motion_n to_o the_o last_o period_n of_o it_o where_o the_o body_n rest_v by_o which_o discourse_n it_o be_v evident_a that_o there_o can_v in_o nature_n be_v a_o strength_n so_o great_a as_o to_o make_v the_o least_o or_o quick_a movable_n that_o be_v to_o pass_v in_o a_o instant_n or_o all_o together_o over_o the_o least_o place_n that_o can_v be_v imagine_v for_o that_o will_v make_v the_o move_v body_n remain_v what_o it_o be_v in_o regard_n of_o its_o bigness_n to_o equalise_v and_o fit_v a_o thing_n big_a than_o it_o be_v therefore_o it_o be_v manifest_a that_o motion_n must_v consist_v of_o such_o part_n as_o have_v this_o nature_n that_o while_o one_o of_o they_o be_v in_o be_v the_o other_o be_v not_o yet_o and_o as_o by_o degree_n every_o new_a one_o come_v to_o be_v all_o the_o other_o that_o be_v before_o do_v vanish_v and_o cease_v to_o be_v which_o circumstance_n accompany_v motion_n we_o call_v succession_n and_o whatever_o be_v so_o do_v be_v say_v to_o be_v do_v in_o time_n which_o sucessione_n be_v the_o common_a measure_n of_o all_o succession_n for_o the_o change_n of_o situation_n of_o the_o star_n but_o especal_o of_o the_o sun_n and_o moon_n be_v observe_v more_o or_o less_o by_o all_o mankind_n and_o appear_v alike_o to_o every_o man_n and_o be_v the_o most_o know_v constant_a and_o uniform_a succession_n that_o man_n be_v use_v to_o be_v as_o it_o be_v by_o nature_n itself_o set_v in_o their_o way_n and_o offer_v they_o as_o fit_a to_o estimate_n and_o judge_v all_o other_o particular_a succession_n by_o compare_v they_o both_o to_o it_o and_o among_o themselves_o by_o it_o and_o according_o we_o see_v all_o man_n natural_o measure_v all_o other_o succession_n and_o express_v their_o quantity_n by_o compare_v they_o to_o the_o
revolution_n of_o the_o heaven_n for_o day_n hour_n and_o year_n be_v nothing_o else_o but_o they_o or_o some_o determinate_a part_n of_o they_o to_o some_o of_o which_o all_o other_o motion_n and_o succession_n must_v of_o necessity_n be_v refer_v if_o we_o will_v measure_v they_o and_o thus_o we_o see_v how_o all_o the_o mystery_n of_o apply_v time_n to_o particular_a motion_n be_v nothing_o else_o but_o the_o consider_v how_o far_o the_o agent_n that_o move_v the_o sun_n cause_v it_o to_o go_v on_o in_o its_o journey_n while_o the_o agent_n that_o move_v a_o particular_a body_n cause_v it_o to_o perform_v its_o motion_n so_o that_o it_o be_v evident_a that_o velocity_n be_v the_o effect_n of_o the_o superproportion_n infinite_a of_o the_o one_o agent_n over_o a_o certain_a medium_fw-la in_o respect_n of_o the_o proportion_n which_o another_o agent_n have_v to_o the_o same_o medium_fw-la and_o therefore_o velocity_n be_v a_o quality_n by_o which_o one_o succession_n be_v intrinsical_o distinguish_v from_o another_o though_o our_o explication_n use_v to_o include_v time_n in_o the_o notion_n of_o velocity_n and_o tardity_n velocity_n then_o be_v the_o effect_n as_o we_o say_v of_o more_o strength_n in_o the_o agent_n and_o have_v before_o express_v that_o velocity_n be_v a_o kind_n of_o density_n we_o find_v that_o this_o kind_n of_o density_n be_v a_o excellency_n in_o succession_n as_o permanent_a density_n be_v a_o excellency_n in_o the_o nature_n of_o substance_n though_o a_o imperfection_n in_o the_o nature_n of_o quantity_n by_o which_o we_o see_v that_o quantity_n be_v a_o kind_n of_o base_a alloy_n add_v to_o substance_n and_o out_o of_o this_o it_o be_v evident_a that_o by_o how_o much_o the_o quick_a the_o motion_n be_v in_o equal_a medium_n by_o so_o much_o the_o agent_n be_v the_o perfect_a which_o cause_v it_o to_o so_o quick_a wherefore_o if_o the_o velocity_n shall_v ascend_v so_o much_o as_o to_o admit_v no_o proportion_n between_o the_o quickness_n of_o the_o one_o and_o the_o tardity_n of_o the_o other_o all_o other_o circumstance_n be_v even_o except_v the_o difference_n of_o the_o agent_n then_o there_o must_v be_v no_o proportion_n between_o the_o agent_n nor_o indeed_o can_v there_o be_v any_o proportion_n between_o they_o though_o there_o be_v never_o so_o many_o difference_n in_o other_o circumstance_n as_o long_o as_o those_o difference_n be_v within_o any_o proportion_n and_o consequent_o you_o see_v that_o if_o one_o agent_n be_v suppose_v to_o move_v in_o a_o instant_n and_o another_o in_o time_n whatever_o other_o difference_n be_v in_o the_o body_n move_v and_o in_o the_o medium_n nevertheless_o the_o agent_n which_o cause_v motion_n in_o a_o instant_n will_v be_v infinite_a in_o respect_n of_o the_o agent_n which_o move_v in_o time_n which_o be_v impossible_a it_o be_v the_o nature_n of_o a_o body_n that_o great_a quantity_n of_o the_o same_o thing_n have_v great_a virtue_n than_o a_o less_o quantity_n have_v and_o therefore_o for_o a_o body_n to_o have_v infinite_a virtue_n it_o must_v have_v infinite_a magnitude_n if_o any_o shall_v say_v the_o contrary_a affirm_v the_o infinite_a virtue_n may_v be_v in_o a_o finite_a body_n i_o ask_v whether_o in_o half_a that_o body_n be_v it_o divide_v the_o virtue_n will_v be_v infinite_a or_o no_o if_o he_o acknowledge_v that_o it_o will_v not_o i_o infer_v thence_o that_o neither_o in_o the_o two_o part_n together_o there_o can_v be_v infinite_a virtue_n for_o two_o finites_n can_v compose_v and_o make_v up_o one_o infinite_a but_o if_o he_o will_v have_v the_o virtue_n be_v infinite_a in_o each_o half_n he_o therein_o allow_v that_o there_o be_v no_o more_o virtue_n in_o the_o whole_a body_n then_o in_o one_o half_a of_o it_o which_o be_v against_o the_o nature_n of_o body_n now_o that_o a_o body_n can_v be_v infinite_a in_o greatness_n be_v prove_v in_o the_o second_o knot_n of_o mr._n white_n be_v first_o dialogue_n de_fw-fr mundo_fw-la and_o thus_o it_o be_v evident_a that_o by_o the_o virtue_n of_o pure_a body_n there_o can_v be_v no_o motion_n in_o a_o instant_n on_o the_o other_o side_n it_o follow_v that_o there_o can_v be_v so_o little_a a_o force_n in_o nature_n but_o that_o give_v it_o time_n enough_o it_o will_v move_v imaginable_a the_o great_a weight_n that_o can_v be_v imagine_v for_o the_o thing_n we_o treat_v of_o be_v all_o of_o they_o quantity_n may_v by_o division_n and_o multiplication_n be_v bring_v to_o equality_n as_o for_o example_n suppose_v the_o weight_n of_o a_o movable_a to_o be_v a_o million_o of_o pound_n and_o that_o the_o mover_n be_v able_a to_o move_v the_o million_v part_n of_o one_o of_o those_o pound_n in_o a_o million_o of_o year_n the_o million_v part_n of_o a_o pace_n through_o a_o medium_fw-la of_o a_o certain_a rarity_n see_v year_n may_v be_v multiply_v so_o as_o to_o equalise_v the_o force_n of_o this_o mover_n to_o the_o weight_n of_o the_o movable_a it_o follow_v clear_o that_o this_o force_n may_v move_v the_o whole_a weight_n of_o a_o million_o of_o pound_n through_o the_o determine_v medium_fw-la in_o a_o determinate_a number_n of_o million_o of_o year_n a_o million_o of_o pace_n for_o such_o a_o force_n be_v equal_a to_o the_o require_a effect_n and_o by_o consequence_n if_o the_o effect_n shall_v not_o follow_v there_o will_v be_v a_o complete_a cause_n put_v and_o no_o effect_n result_v from_o it_o but_o peradventure_o it_o be_v needful_a to_o illustrate_v this_o point_n yet_o further_o suppose_v then_o a_o weight_n never_o so_o great_a to_o be_v a_o and_o a_o force_n never_o so_o little_a to_o be_v b._n now_o if_o you_o conceive_v that_o some_o other_o force_n move_v a_o you_o must_v withal_o conceive_v it_o move_v a_o some_o space_n since_o all_o motion_n imply_v necessary_o that_o it_o be_v through_o some_o space_n let_v that_o space_n be_v cd_o and_o because_o a_o body_n can_v be_v move_v a_o space_n in_o a_o instant_n but_o require_v some_o time_n to_o have_v its_o motion_n perform_v in_o it_o follow_v that_o there_o must_v be_v a_o determine_a time_n in_o which_o the_o conceive_a force_n must_v move_v the_o weight_n a_o through_o the_o space_n cd_o let_v that_o time_n be_v ef._n now_o then_o this_o be_v evident_a that_o it_o be_v all_o one_o to_o say_v that_z b_o moves_z a_o and_o to_o say_v that_z b_o moves_z a_o through_o a_o space_n in_o a_o time_n so_o that_o if_o any_o part_n of_o this_o be_v leave_v out_o it_o can_v be_v understand_v that_o b_o moves_z a._n therefore_o to_o express_v particular_o the_o effect_n which_o b_o be_v to_o do_v upon_o a_o we_o must_v say_v b_o must_v move_v a_o a_o certain_a space_n in_o a_o certain_a time_n which_o be_v so_o we_o may_v in_o the_o next_o place_n consider_v that_o this_o effect_n of_o move_v a_o may_v be_v diminish_v two_o way_n either_o because_o the_o space_n it_o be_v to_o be_v move_v in_o be_v lessen_v or_o the_o time_n take_v up_o in_o its_o motion_n be_v increase_v for_o as_o it_o be_v a_o great_a effect_n to_o move_v a_o through_o the_o space_n cd_o in_o a_o less_o time_n then_o of_o so_o it_o be_v a_o less_o effect_n to_o move_v the_o same_o a_o through_o the_o space_n cd_o in_o a_o great_a time_n then_o of_o or_o through_o a_o less_o space_n than_o cd_o in_o the_o time_n ef._n now_o then_o this_o be_v suppose_v that_o it_o be_v a_o less_o effect_n to_o move_v a_o through_o cd_o in_o a_o great_a time_n then_o of_o it_o follow_v also_o that_o a_o lesser_a virtue_n be_v able_a to_o move_v it_o through_o cd_o in_o a_o great_a time_n then_o of_o than_o the_o virtue_n which_o be_v require_v to_o move_v it_o through_o the_o same_o space_n in_o the_o time_n ef._n which_o if_o it_o be_v once_o grant_v as_o it_o can_v be_v deny_v then_o multiply_v the_o time_n as_o much_o as_o the_o virtue_n or_o force_n require_v to_o move_v a_o through_o cd_o in_o the_o time_n of_o be_v great_a than_o the_o force_n b_o in_o so_o much_o time_n the_o force_n b_o will_v be_v able_a to_o move_v a_o through_o cd_o which_o discourse_n be_v evident_a if_o we_o take_v it_o in_o common_a term_n but_o it_o be_v apply_v to_o action_n wherein_o physical_a accident_n intervene_v the_o artificer_n must_v have_v the_o judgement_n to_o provide_v for_o they_o according_a to_o the_o nature_n of_o his_o matter_n upon_o this_o last_o discourse_n hang_v the_o principle_n which_o govern_v discourse_n mechanic_n to_o wit_n that_o the_o force_n and_o the_o distance_n of_o weight_n counterpoyse_v one_o another_o aught_o to_o reciprocal_a that_o be_v by_o how_o much_o the_o one_o weight_n be_v heavy_a than_o the_o other_o by_o so_o much_o must_v the_o distance_n of_o the_o light_a from_o the_o fix_a point_n upon_o which_o
downward_o nor_o need_v we_o fear_v lest_o the_o littlenessof_n the_o agent_n or_o the_o feebleness_n of_o their_o stroke_n shall_v not_o be_v sufficient_a to_o work_v this_o effect_n since_o there_o be_v no_o resistance_n in_o the_o body_n itself_o and_o the_o air_n be_v continual_o cut_v in_o piece_n by_o the_o sunbeam_n and_o by_o the_o motion_n of_o little_a body_n so_o that_o the_o adhesion_n to_o air_n of_o the_o body_n to_o be_v move_v will_v be_v no_o hindrance_n to_o this_o motion_n especial_o consider_v the_o perpetual_a new_a percussion_n and_o the_o multitude_n of_o they_o and_o how_o no_o force_n be_v so_o little_a but_o that_o with_o time_n and_o multiplication_n it_o will_v overcome_v any_o resistance_n but_o if_o any_o man_n desire_v to_o look_v on_o as_o it_o be_v at_o one_o view_n the_o whole_a chain_n of_o this_o doctrine_n of_o gravity_n let_v he_o turn_v the_o first_o gravity_n cast_v of_o his_o eye_n on_o what_o we_o have_v say_v of_o fire_n when_o we_o explicate_v the_o nature_n of_o it_o to_o wit_n that_o it_o begin_v from_o a_o little_a source_n and_o by_o extreme_a multiplication_n and_o rarefaction_n extend_v itself_o into_o a_o great_a sphere_n and_o then_o he_o be_v perceive_v the_o reason_n why_o light_n be_v dart_v from_o the_o body_n of_o the_o sun_n with_o that_o incredible_a celerity_n wherewith_o its_o beam_n fly_v to_o visit_v the_o remote_a part_n of_o the_o world_n and_o how_o of_o necessity_n it_o give_v motion_n to_o all_o circumstant_fw-la body_n since_o it_o be_v violent_o thrust_v forward_o by_o so_o extreme_a rarefaction_n and_o the_o further_a it_o go_v be_v still_o the_o more_o rarify_v and_o dilate_v next_o let_v he_o reflect_v how_o infinite_o the_o quickness_n of_o light_n motion_n prevent_v the_o motion_n of_o a_o moist_a body_n such_o a_o one_o as_o air_n be_v and_o then_o he_o will_v plain_o see_v that_o the_o first_o motion_n which_o light_n be_v able_a to_o give_v the_o air_n must_v needs_o be_v a_o swell_a of_o that_o moist_a element_n perpendicular_o round_a about_o the_o earth_n for_o the_o ray_n descendent_a and_o the_o ray_n reflectent_n fly_v with_o so_o great_a a_o speed_n that_o the_o air_n between_o they_o can_v take_v a_o formal_a pley_v any_o way_n before_o the_o beam_n of_o light_n be_v on_o both_o side_n of_o it_o it_o follow_v that_o according_a to_o the_o nature_n of_o humid_a thing_n it_o must_v first_o only_o swell_v for_o that_o be_v the_o begin_n of_o motion_n in_o they_o when_o heat_n enter_v into_o and_o work_v on_o they_o and_o thus_o he_o may_v confident_o resolve_v himself_o that_o the_o first_o motion_n which_o light_a cause_n in_o the_o air_n will_v be_v a_o swell_a of_o it_o between_o the_o two_o ray_n towards_o the_o middle_n of_o they_o that_o be_v perpendicular_o from_o the_o surface_n of_o the_o earth_n and_o out_o of_o this_o he_o will_v likewise_o plain_o see_v that_o if_o there_o be_v any_o other_o little_a dense_a body_n float_v in_o the_o air_n they_o must_v likewise_o mount_v a_o little_a through_o this_o swell_a and_o rise_v of_o the_o air_n but_o that_o mount_a will_v be_v no_o more_o than_o the_o immediate_a part_n of_o the_o air_n themselves_o move_v because_o this_o motion_n be_v not_o by_o way_n of_o impulse_n or_o stroke_n that_o the_o air_n give_v those_o denser_n body_n but_o by_o way_n of_o contain_v they_o in_o it_o and_o carry_v they_o with_o it_o so_o that_o it_o give_v they_o no_o more_o celerity_n then_o to_o make_v they_o go_v with_o itself_o and_o as_o part_n of_o itself_o then_o let_v he_o consider_v that_o light_n or_o fire_n by_o much_o beat_n upon_o the_o earth_n divide_v some_o little_a part_n of_o it_o from_o other_o whereof_o if_o any_o become_v so_o small_a and_o tractable_a as_o not_o to_o exceed_v the_o strength_n which_o the_o ray_n have_v to_o manage_v they_o the_o returning_z ray_n will_v at_o their_o go_v back_o carry_v away_o with_o or_o drive_v before_o they_o such_o little_a atom_n as_o they_o make_v or_o meet_v with_o and_o so_o fill_v the_o air_n with_o little_a body_n cut_v out_o of_o the_o earth_n after_o this_o let_v he_o consider_v that_o when_o light_n carry_v up_o a_o atom_n with_o it_o the_o light_n and_o the_o atom_n stick_v together_o and_o make_v one_o ascend_a body_n in_o such_o sort_n as_o when_o a_o empty_a dish_n lie_v upon_o the_o water_n the_o air_n in_o the_o dish_n make_v one_o descendent_a body_n together_o with_o the_o dish_n itself_o so_o that_o the_o density_n of_o the_o whole_a body_n of_o air_n and_o dish_n which_o in_o this_o case_n be_v but_o as_o one_o body_n be_v to_o be_v esteem_v according_a to_o the_o density_n of_o the_o two_o part_n one_o of_o they_o be_v allay_v by_o the_o other_o as_o if_o the_o whole_a where_o thrughout_n of_o such_o a_o proportion_n of_o density_n as_o will_v arise_v out_o of_o the_o composition_n and_o knead_n together_o the_o several_a density_n of_o those_o two_o part_n now_o then_o when_o these_o little_a 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resistance_n of_o the_o medium_fw-la in_o same_o some_o proportion_n it_o follow_v that_o the_o proportion_n between_o the_o gravity_n and_o the_o medium_n may_v be_v multiply_v without_o end_n so_o as_o if_o he_o suppose_v that_o the_o gravity_n of_o a_o body_n make_v it_o go_v at_o a_o certain_a rate_n in_o imaginary_a space_n which_o be_v his_o manner_n of_o put_v the_o force_n of_o gravity_n then_o there_o may_v be_v give_v such_o a_o proportion_n of_o a_o heavy_a body_n to_o the_o medium_n as_o it_o shall_v go_v in_o such_o a_o medium_n at_o the_o same_o rate_n and_o nevertheless_o there_o will_v be_v a_o infinite_a difference_n betwixt_o the_o resistance_n of_o the_o medium_n compare_v to_o that_o body_n and_o the_o resistance_n of_o the_o imaginary_a space_n compare_v to_o that_o other_o body_n which_o he_o suppose_v to_o be_v move_v in_o it_o at_o the_o same_o rate_n which_o no_o man_n will_v stick_v at_o confession_n to_o be_v very_o absurd_a then_o turn_v the_o scale_n because_o the_o resistance_n of_o the_o medium_n somewhat_o hinder_v gravity_n and_o that_o with_o less_o resistance_n the_o heavy_a body_n move_v fast_o it_o must_v follow_v that_o since_o there_o be_v no_o proportion_n betwixt_o the_o medium_n and_o imaginary_a space_n there_o must_v neither_o be_v any_o proportion_n betwixt_o the_o time_n in_o which_o a_o heavy_a body_n shall_v pass_v through_o a_o certain_a quantity_n of_o the_o medium_n and_o the_o time_n in_o which_o it_o shall_v pass_v through_o as_o much_o imaginary_a space_n wherefore_o it_o must_v pass_v over_o so_o much_o imaginary_a space_n in_o a_o instant_n which_o be_v the_o argument_n that_o aristotle_n be_v so_o much_o laugh_v at_o for_o press_v and_o in_o a_o word_n nothing_o be_v more_o evident_a then_o that_o for_o this_o effect_n which_o galileo_n attribute_n to_o gravity_n it_o be_v unreasonable_a to_o put_v a_o divisible_a quantity_n since_o the_o effect_n be_v indivisible_a and_o therefore_o as_o evident_a it_o 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can_v make_v it_o go_v fast_o for_o it_o be_v manifest_a that_o in_o a_o violent_a motion_n the_o force_n which_o move_v a_o body_n in_o the_o end_n of_o its_o course_n be_v weak_a than_o that_o which_o move_v it_o in_o the_o beginning_n and_o the_o like_a be_v of_o the_o two_o string_n but_o here_o it_o be_v not_o amiss_o to_o solve_v a_o problem_n he_o put_v which_o belong_v to_o our_o present_a subject_n he_o find_v by_o experience_n that_o it_o if_o two_o body_n descend_v at_o the_o same_o time_n from_o the_o same_o point_n and_o go_v to_o the_o same_o point_n the_o one_o by_o the_o inferior_a quarter_n of_o the_o circle_n the_o other_o by_o the_o chord_n to_o that_o arch_n or_o by_o any_o other_o line_n which_o be_v chord_n to_o part_n of_o that_o arch_n he_o find_v i_o say_v that_o the_o movable_a go_v fast_a by_o the_o arch_n then_o by_o any_o of_o the_o chord_n and_o the_o reason_n be_v evident_a if_o we_o consider_v that_o the_o near_a any_o motion_n come_v to_o a_o perpendicular_a one_o downward_o the_o great_a velocity_n it_o must_v have_v and_o that_o in_o the_o arch_n of_o such_o a_o quadrant_a every_o particular_a part_n of_o it_o incline_v to_o the_o perpendicular_a of_o the_o place_n where_o it_o be_v more_o than_o the_o part_n of_o the_o chord_n answerable_a to_o it_o do_v chap._n xi_o a_o answer_n to_o objection_n against_o the_o cause_n of_o natural_a motion_n avow_v in_o the_o former_a chapter_n and_o a_o refutation_n of_o the_o contrary_a opinion_n but_o to_o return_v to_o the_o three_o of_o our_o doctrine_n there_o may_v peradventure_o one_o be_v object_v against_o it_o that_o if_o the_o violence_n of_o a_o body_n descent_n towards_o the_o centre_n do_v proceed_v only_o from_o the_o density_n of_o it_o which_o give_v it_o
dense_n signify_v nothing_o else_o but_o that_o it_o be_v in_o such_o a_o degree_n of_o density_n that_o some_o of_o its_o own_o part_n by_o their_o be_v assist_v and_o set_v on_o work_n by_o a_o general_a cause_n which_o be_v the_o fall_n of_o the_o atom_n be_v powerful_a enough_o to_o divide_v other_o adjoin_a part_n of_o the_o same_o density_n with_o they_o one_o from_o another_o as_o we_o see_v water_n pour_v out_o of_o a_o ewer_n into_o a_o basin_n where_o there_o be_v already_o other_o water_n have_v the_o power_n to_o divide_v the_o water_n in_o the_o basin_n by_o the_o assistance_n of_o the_o celerity_n which_o it_o get_v in_o descend_v and_o now_o i_o hope_v the_o reader_n be_v full_o satisfy_v that_o there_o be_v no_o contradiction_n in_o put_v density_n and_o gravity_n to_o be_v the_o same_o thing_n material_o and_o that_o nevertheless_o the_o same_o thing_n may_v be_v more_o heavy_a than_o dense_a or_o more_o dense_a than_o heavy_a as_o we_o take_v it_o to_o our_o several_a purpose_n in_o the_o investigation_n of_o the_o element_n have_v thus_o lay_v a_o intelligible_a ground_n to_o discover_v how_o these_o reason_n motion_n that_o be_v general_a to_o all_o body_n and_o be_v natural_a in_o chief_a be_v contrive_v by_o nature_n we_o will_v now_o endeavour_v to_o show_v that_o the_o contrary_a position_n be_v not_o only_o voluntary_a but_o also_o impossible_a let_v we_o therefore_o suppose_v that_o a_o body_n have_v a_o quality_n to_o move_v it_o downward_o and_o first_o we_o shall_v ask_v what_o downward_o signify_v for_o either_o it_o signify_v towards_o a_o fix_a point_n of_o imaginary_a space_n or_o towards_o a_o fix_a point_n of_o the_o universe_n or_o towards_o some_o movable_a point_n as_o for_o the_o first_o who_o will_v maintain_v it_o must_v have_v more_o imagnation_n than_o judgement_n to_o think_v that_o a_o natural_a quality_n can_v have_v a_o essence_n determine_v by_o a_o nothing_o because_o we_o can_v frame_v a_o conceit_n of_o that_o 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same_o point_n of_o incidence_n in_o a_o short_a line_n and_o a_o great_a angle_n than_o another_o do_v in_o both_o these_o way_n it_o be_v apparent_a that_o a_o body_n compose_v of_o great_a part_n and_o great_a pore_n exceed_v body_n of_o the_o opposite_a kind_n for_o by_o reason_n that_o in_o the_o first_o kind_n more_o light_a may_v beat_v against_o one_o part_n a_o body_n in_o which_o that_o happen_v will_v wake_v a_o appearance_n from_o a_o further_a part_n of_o its_o superficies_n whereas_o in_o a_o body_n of_o the_o other_o sort_n the_o light_n that_o beat_v against_o one_o of_o the_o little_a part_n of_o it_o will_v be_v so_o little_a as_o it_o will_v present_o vanish_v again_o because_o in_o the_o first_o the_o part_n at_o the_o incidence_n be_v great_a the_o surface_n from_o which_o the_o reflection_n be_v make_v inward_o have_v more_o of_o a_o plain_a and_o straight_o superficies_n and_o consequent_o reflect_v at_o a_o great_a angle_n than_o that_o who_o superficies_n 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point_n dr._n gilbert_n seem_v also_o to_o have_v another_o controversy_n with_o all_o attractive_a writer_n to_o wit_n whether_o any_o body_n beside_o magnetical_a one_o be_v attractive_a which_o he_o seem_v to_o deny_v all_o other_o to_o affirm_v but_o this_o also_o be_v fair_o put_v will_v peradventure_o prove_v no_o controversy_n for_o the_o question_n be_v either_o in_o common_a of_o attraction_n or_o else_o in_o particular_a of_o such_o a_o attraction_n as_o be_v make_v by_o the_o loadone_v of_o the_o first_o part_n there_o can_v be_v no_o doubt_n as_o we_o have_v declare_v above_o and_o be_v manifest_a betwixt_o gold_n and_o quicksilver_n when_o a_o man_n hold_v gold_n in_o his_o mouth_n it_o draw_v to_o it_o the_o quicksilver_n that_o be_v in_o his_o body_n but_o for_o the_o attractive_a to_o draw_v a_o body_n to_o itself_o not_o whole_o but_o one_o determinate_a part_n of_o the_o body_n draw_v to_o one_o determinate_a part_n of_o the_o drawer_n be_v a_o attraction_n which_o 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loadstone_n like_o a_o more_o humid_a body_n to_o a_o dryer_n of_o the_o same_o nature_n and_o the_o difference_n of_o male_a and_o female_a sex_n in_o animal_n manifest_o show_v the_o great_a appetence_n of_o conjunction_n between_o moisture_n and_o dryness_n when_o they_o belong_v to_o body_n of_o the_o same_o species_n another_o question_n be_v that_o great_a one_o why_o a_o loadstone_n cape_v itself_o with_o steel_n take_v up_o more_o iron_n than_o it_o will_v do_v if_o it_o be_v without_o that_o cape_v another_o conclusion_n like_o this_o be_v that_o if_o by_o a_o loadstone_n you_o take_v up_o a_o iron_n and_o by_o that_o iron_n a_o second_o iron_n and_o then_o pull_v away_o the_o second_o iron_n the_o first_o iron_n in_o some_o position_n will_v leave_v the_o loadstone_n to_o stick_v to_o the_o second_o iron_n as_o long_o as_o the_o second_o iron_n be_v within_o the_o sphere_n of_o the_o lodestone_n activity_n but_o if_o you_o remove_v the_o second_o out_o of_o that_o sphere_n than_o the_o first_o iron_n remain_v within_o it_o though_o the_o other_o be_v out_o of_o it_o will_v leave_v the_o second_o and_o leap_v back_o to_o the_o loadstone_n to_o the_o same_o purpose_n be_v this_o other_o conclusion_n that_o the_o great_a the_o iron_n be_v which_o be_v entire_o within_o the_o compass_n of_o the_o lodestone_n virtue_n the_o more_o strong_o the_o loadstone_n will_v be_v move_v to_o it_o and_o the_o more_o forcible_o stick_v to_o it_o the_o reason_n of_o all_o these_o three_o we_o must_v give_v at_o once_o for_o they_o hang_v all_o upon_o on_o string_n and_o in_o my_o conceit_n neither_o gilbert_n nor_o galileo_n have_v hit_v upon_o the_o right_n as_o for_o gilbert_n he_o think_v that_o in_o iron_n there_o be_v original_o the_o virtue_n of_o the_o loadstone_n but_o that_o it_o be_v as_o it_o be_v asleep_a till_o by_o the_o touch_n of_o the_o loadstone_n it_o be_v awake_v and_o set_v on_o work_n and_o therefore_o the_o virtue_n of_o bath_n join_v together_o be_v 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touch_v the_o iron_n first_o because_o the_o refute_v loadstone_n have_v general_o much_o impurity_n in_o it_o and_o therefore_o divers_a part_n of_o it_o have_v no_o virtue_n whereas_o iron_n by_o be_v melt_v have_v all_o its_o part_n pure_a and_o second_o because_o iron_n can_v be_v smooth_v and_o polish_a more_o than_o a_o loadstone_n can_v be_v and_o therefore_o its_o superficies_n touch_v in_o a_o manner_n with_o all_o its_o part_n whereas_o divers_a part_n of_o the_o stone_n superficies_n can_v touch_v by_o reason_n of_o its_o ruggedness_n and_o he_o confirm_v his_o opinion_n by_o experience_n for_o if_o you_o put_v the_o head_n of_o a_o needle_n to_o a_o bare_a stone_n and_o the_o point_n of_o it_o to_o a_o iron_n and_o then_o pluck_v away_o the_o iron_n the_o needle_n will_v leave_v the_o iron_n and_o stick_v to_o the_o stone_n but_o if_o you_o turn_v the_o needle_n the_o other_o way_n it_o will_v leave_v the_o stone_n and_o stick_v to_o the_o iron_n out_o of_o which_o he_o infer_v that_o it_o be_v the_o multitude_n of_o part_n which_o cause_v the_o close_o and_o strong_a stick_v and_o it_o seem_v he_o find_v the_o same_o in_o the_o cape_n of_o his_o lodestone_n for_o he_o use_v flat_a iron_n for_o that_o purpose_n which_o by_o their_o whole_a plane_n do_v take_v up_o other_o iron_n whereas_o gilbert_n cape_v his_o with_o convex_a iron_n which_o not_o apply_v themselves_o to_o other_o iron_n so_o strong_o or_o with_o so_o many_o port_n as_o galileo_n do_v will_v not_o by_o much_o take_v up_o so_o great_a weight_n as_o he_o nevertheless_o it_o seem_v not_o to_o i_o that_o his_o answer_n be_v sufficient_a or_o that_o his_o reason_n convince_v for_o we_o be_v to_o consider_v that_o the_o virtue_n which_o he_o put_v in_o the_o iron_n must_v according_a to_o his_o own_o supposition_n proceed_v from_o the_o loadstone_n and_o then_o what_o import_v it_o whether_o the_o superficies_n of_o the_o iron_n which_o touch_v another_o iron_n be_v so_o exact_o plain_a or_o no_o or_o that_o the_o part_n of_o it_o be_v more_o solid_a than_o the_o part_n of_o the_o stone_n for_o all_o this_o conduce_v nothing_o to_o make_v the_o virtue_n great_a than_o it_o be_v since_o no_o more_o virtue_n can_v go_v from_o one_o iron_n to_o the_o other_o then_o go_v from_o the_o loadstone_n to_o the_o first_o iron_n and_o if_o this_o virtue_n can_v tie_v the_o first_o iron_n to_o the_o loadstone_n it_o can_v proceed_v out_o of_o this_o virtue_n that_o the_o second_o iron_n be_v tie_v to_o the_o first_o again_o if_o a_o paper_n be_v put_v betwixt_o the_o cap_n and_o another_o iron_n it_o do_v not_o hinder_v the_o magnetical_a virtue_n from_o pass_v through_o it_o to_o the_o iron_n but_o the_o virtue_n of_o take_v up_o more_o weight_n than_o the_o naked_a stone_n be_v able_a to_o do_v be_v thereby_o
to_o the_o iron_n &_o though_o the_o other_o steam_n be_v never_o so_o great_a yet_o it_o can_v draw_v more_o than_o according_a to_o the_o proportion_n of_o its_o antagonist_n come_v from_o the_o iron_n wherefore_o see_v the_o two_o steam_n betwixt_o the_o iron_n and_o the_o little_a loadstone_n be_v more_o proportionable_a to_o one_o another_o and_o the_o steam_n come_v out_o of_o the_o little_a loadstone_n be_v notable_o great_a than_o the_o steam_n go_v from_o the_o iron_n to_o the_o great_a loadstone_n the_o conjunction_n must_v be_v make_v for_o the_o most_o part_n to_o the_o little_a loadstone_n and_o if_o this_o discourse_n do_v not_o hold_v in_o the_o former_a part_n of_o the_o problem_n betwixt_o a_o second_o iron_n and_o loadstone_n it_o be_v supply_v by_o the_o former_a reason_n which_o we_o give_v for_o that_o particular_a purpose_n the_o three_o case_n depend_v also_o of_o this_o solution_n for_o the_o big_a an_o iron_n be_v so_o many_o more_o part_n it_o have_v to_o suck_v up_o the_o influence_n of_o the_o loadstone_n and_o consequent_o do_v it_o thereby_o the_o more_o greedy_o and_o therefore_o the_o loadstone_n must_v be_v carry_v to_o it_o more_o violent_o and_o when_o they_o aâ—e_v join_v stick_v more_o strong_o the_o six_o question_n be_v why_o the_o variation_n of_o the_o needle_n from_o the_o true_a north_n in_o the_o northern_a hemisphere_n be_v great_a the_o pole_n near_o you_o go_v to_o the_o pole_n and_o lesser_a the_o near_o you_o approach_v to_o the_o equator_fw-la the_o reason_n whereof_o be_v plain_a in_o our_o doctrine_n for_o consider_v that_o the_o magnetic_a virtue_n of_o the_o earth_n stream_n from_o the_o north_n towards_o the_o equator_fw-la it_o follow_v of_o necessity_n that_o if_o there_o be_v two_o stream_n of_o magnetic_a flower_n issue_v from_o the_o north_n one_o of_o they_o precise_o from_o the_o pole_n &_o the_o other_o from_o a_o part_n of_o the_o earth_n near_o the_o pole_n &_o that_o the_o stream_n come_v from_o the_o point_n by_o side_n the_o pole_n be_v but_o a_o little_a the_o strong_a of_o the_o two_o there_o will_v appear_v very_o little_a difference_n in_o their_o several_a operation_n after_o they_o have_v have_v a_o long_a space_n to_o mingle_v their_o emanation_n together_o which_o thereby_o join_v and_o grow_v as_o it_o be_v into_o one_o stream_n whereas_o the_o near_a you_o come_v to_o the_o pole_n the_o more_o you_o will_v find_v they_o sever_v and_o each_o of_o they_o work_v by_o its_o own_o virtue_n and_o very_o near_o the_o point_n which_o cause_v the_o variation_n each_o stream_n work_v single_o by_o itself_o and_o therefore_o here_o the_o point_n of_o variation_n must_v be_v master_n and_o will_v carry_v the_o needle_n strong_o to_o his_o course_n from_o the_o due_a north_n if_o his_o stream_n be_v never_o so_o little_o more_o efficacious_a than_o the_o other_o again_o a_o line_n draw_v from_o a_o point_n of_o the_o earth_n wide_a of_o the_o pole_n to_o a_o point_n of_o the_o meridian_n near_o the_o equator_fw-la make_v a_o less_o angle_n then_o a_o line_n draw_v from_o the_o same_o point_n of_o the_o earth_n to_o a_o point_n of_o the_o same_o meridian_n near_o the_o pole_n wherefore_o the_o variation_n be_v esteem_v by_o the_o quantity_n of_o the_o say_a angle_n it_o must_v needs_o be_v great_a near_o the_o pole_n then_o near_o the_o equator_fw-la though_o the_o cause_n be_v the_o same_o but_o because_o it_o may_v happen_v that_o in_o the_o part_n near_o the_o equator_fw-la the_o variation_n may_v proceed_v from_o some_o piece_n of_o land_n not_o much_o more_o northerly_a than_o where_o the_o needle_n be_v but_o that_o it_o bear_v rather_o easterly_a or_o westerly_a from_o it_o and_o yet_o gilbert_n assertion_n go_v universal_o when_o he_o say_v the_o variation_n in_o southern_a region_n be_v less_o than_o in_o northern_a one_o we_o must_v examine_v what_o may_v be_v the_o reason_n thereof_o and_o present_o the_o generation_n of_o the_o loadstone_n show_v it_o plain_o for_o see_v the_o nature_n of_o the_o loadstone_n proceed_v out_o of_o this_o that_o the_o sun_n work_v more_o upon_o the_o torrid_a zone_n then_o upon_o the_o pole_n and_o that_o his_o too_o strong_a operation_n be_v contrary_a to_o the_o loadstone_n as_o be_v of_o the_o nature_n of_o fire_n it_o follow_v evident_o that_o the_o land_n of_o the_o torrid_a zone_n can_v be_v so_o magnetical_a general_o speak_v as_o the_o polar_n land_n be_v and_o by_o consequence_n that_o a_o lesser_a land_n near_o the_o pole_n will_v have_v a_o great_a effect_n than_o a_o large_a continent_n near_o the_o equator_fw-la and_o likewise_o a_o land_n further_o off_o towards_o the_o pole_n will_v work_v more_o strong_o than_o a_o near_a land_n which_o lie_v towards_o the_o equator_fw-la the_o seven_o question_n be_v whether_o in_o the_o same_o part_n of_o the_o less_o world_n a_o touch_v needle_n may_v at_o one_o time_n vary_v more_o from_o the_o true_a north_n point_n and_o at_o another_o time_n less_o in_o which_o gilbert_n be_v resolute_a for_o the_o negative_a part_n but_o our_o latter_a mathematician_n be_v of_o another_o mind_n three_o experience_n be_v make_v near_o london_n in_o three_o divers_a year_n the_o two_o first_o 42_o year_n distant_a from_o one_o another_o and_o the_o three_o 12_o year_n distant_a from_o the_o second_o and_o by_o they_o it_o be_v find_v that_o in_o the_o space_n of_o 54_o year_n the_o loadstone_n have_v at_o london_n diminsh_v his_o variation_n from_o the_o north_n the_o quantity_n of_o 7_o degree_n and_o more_o but_o so_o that_o in_o the_o latter_a year_n the_o diminution_n have_v sensible_o go_v fast_a than_o in_o the_o former_a these_o observation_n peradventure_o be_v but_o little_o credit_v by_o stranger_n but_o we_o who_o know_v the_o worth_n of_o the_o man_n that_o make_v they_o can_v mistrust_v any_o notable_a error_n in_o they_o for_o they_o be_v very_o able_a mathematician_n and_o make_v their_o observation_n with_o very_a great_a exactness_n and_o there_o be_v several_a judicious_a witness_n at_o the_o make_n of_o they_o as_o may_v be_v see_v in_o mr._n gillebrand_n print_n concern_v this_o subject_n and_o divers_a other_o particular_a person_n confirm_v the_o same_o who_o credit_n though_o each_o single_a might_n peradventure_o be_v slight_v yet_o all_o in_o body_n make_v a_o great_a accession_n we_o must_v therefore_o cast_v about_o to_o find_v what_o may_v be_v the_o cause_n of_o a_o effect_n so_o paradox_n to_o the_o rest_n of_o the_o doctrine_n of_o the_o loadstone_n for_o see_v that_o no_o one_o place_n can_v stand_v otherwise_o to_o the_o north_n of_o the_o earth_n at_o one_o time_n then_o at_o another_o how_o it_o be_v possible_a the_o needle_n shall_v receive_v any_o new_a variation_n since_o all_o variation_n proceed_v out_o of_o the_o inequality_n of_o the_o earth_n but_o when_o we_o consider_v that_o this_o effect_n proceed_v not_o out_o of_o the_o main_a body_n of_o the_o earth_n but_o only_o out_o of_o the_o bark_n of_o it_o and_o that_o its_o bark_n may_v have_v divers_a temper_n not_o as_o yet_o discover_v to_o we_o out_o of_o who_o variety_n the_o influence_n of_o the_o earthy_a part_n may_v be_v divers_a in_o respect_n of_o one_o certain_a place_n it_o be_v not_o impossible_a but_o that_o such_o variation_n may_v be_v especial_o in_o england_n which_o island_n lie_v open_a to_o the_o north_n by_o a_o great_a and_o vast_a ocean_n may_v receive_v more_o particular_o than_o other_o place_n the_o special_a influence_n and_o variation_n of_o the_o weather_n that_o happen_v in_o those_o northeastern_a country_n from_o whence_o this_o influence_n come_v to_o we_o if_o therefore_o there_o shall_v be_v any_o course_n of_o weather_n who_o period_n be_v a_o hundred_o year_n for_o example_n or_o more_o or_o less_o and_o so_o may_v easy_o pass_v unmask_v this_o variation_n may_v grow_v out_o of_o such_o a_o course_n but_o in_o so_o obscure_a a_o thing_n we_o have_v already_o hazard_v to_o guess_v too_o much_o and_o upon_o the_o whole_a matter_n of_o the_o loadstone_n it_o serve_v our_o turn_n if_o we_o have_v prove_v as_o we_o conceive_v we_o have_v do_v full_o that_o its_o motion_n which_o appear_v so_o admirable_a do_v not_o proceed_v from_o a_o occult_a quality_n but_o that_o the_o cause_n of_o they_o may_v be_v reduce_v to_o local_a motion_n and_o all_o perform_v by_o such_o corporeal_a instrument_n and_o mean_n though_o peradventure_o more_o intricate_o dispose_v as_o all_o other_o effect_n be_v among_o body_n who_o order_v and_o dispose_n and_o particular_a progress_n there_o be_v no_o reason_n to_o despair_v of_o find_v ouâ—_n will_v man_n but_o careful_o apply_v themselves_o to_o that_o work_n upon_o solid_a principle_n and_o with_o diligent_a experience_n but_o because_o this_o matter_n have_v be_v very_o long_o and_o scatter_o
spirit_n with_o animal_n spirit_n and_o with_o blood_n and_o by_o these_o the_o animal_n be_v heat_v nourish_v and_o make_v partaker_n of_o sense_n and_o motion_n now_o refer_v the_o particular_a motion_n of_o live_v creature_n to_o another_o time_n we_o may_v observe_v that_o both_o kind_n of_o they_o as_o well_o vegetable_n as_o animal_n agree_v in_o the_o nature_n of_o sustain_v themselves_o in_o the_o three_o common_a action_n of_o generation_n nutrition_n and_o augmentation_n which_o be_v the_o begin_n the_o progress_n and_o the_o conserve_n of_o life_n to_o which_o three_z we_o may_v add_v the_o not_o so_o much_o action_n as_o passion_n of_o death_n and_o of_o sickness_n or_o decay_n which_o be_v the_o way_n to_o death_n chap._n xxiv_o a_o more_o particular_a survey_n of_o the_o generation_n of_o animal_n in_o which_o be_v discover_v what_o part_n of_o the_o animal_n be_v first_o generate_v to_o begin_v then_o with_o examine_v how_o living_n creature_n be_v in_o gender_v our_o main_a question_n shall_v be_v whether_o they_o be_v parent_n frame_v entire_o at_o once_o or_o successive_o one_o part_n after_o another_o and_o if_o this_o latter_a way_n which_o part_n first_o upon_o the_o discussion_n of_o which_o all_o that_o concern_v generation_n will_v be_v explicate_v as_o much_o as_o concern_v our_o purpose_n in_o hand_n to_o deduce_v this_o from_o its_o origine_fw-la we_o may_v remember_v how_o our_o master_n tell_v we_o that_o when_o any_o live_a creature_n be_v pass_v the_o heat_n of_o its_o augmentation_n or_o grow_a the_o superfluous_a nourishment_n settle_v itself_o in_o some_o appoint_a place_n of_o the_o body_n to_o serve_v for_o the_o production_n of_o some_o other_o now_o it_o be_v evident_a that_o this_o superfluity_n come_v from_o all_o part_n of_o the_o body_n and_o may_v be_v say_v to_o contain_v in_o it_o after_o some_o sort_n the_o perfection_n of_o the_o whole_a live_a creature_n be_v it_o how_o it_o will_v it_o be_v manifest_a that_o the_o live_a creature_n be_v make_v of_o this_o superfluous_a moisture_n of_o the_o parent_n which_o according_a to_o the_o opinion_n of_o some_o be_v compound_v of_o several_a part_n derive_v from_o the_o several_a limb_n of_o the_o parent_n those_o part_n when_o they_o come_v to_o be_v ferment_v in_o convenient_a heat_n and_o moisture_n take_v their_o posture_n and_o situation_n according_a to_o the_o posture_n and_o disposition_n of_o part_n that_o the_o live_a creature_n have_v from_o whence_o they_o issue_v and_o then_o they_o grow_v daily_o great_a and_o solider_fw-la the_o effect_n of_o moisture_n and_o heat_n at_o length_n become_v such_o a_o creature_n as_o that_o be_v from_o whence_o they_o have_v their_o origine_fw-la which_o a_o accident_n that_o i_o remember_v seem_v much_o to_o confirm_v it_o be_v of_o a_o cat_n that_o have_v it_o be_v tail_n cut_v off_o when_o it_o be_v very_o young_a which_o cat_n happen_v afterward_o to_o have_v young_a one_o half_o the_o kitling_n prove_v without_o tail_n and_o the_o other_o half_o have_v they_o in_o a_o ordinary_a manner_n as_o if_o nature_n can_v supply_v but_o on_o one_o partner_n side_n not_o on_o both_o and_o another_o particular_a that_o i_o see_v when_o i_o be_v at_o algiers_n make_v to_o this_o purpose_n which_o be_v a_o woman_n that_o have_v two_o thumb_n upon_o the_o left_a hand_n four_o daughter_n that_o she_o have_v all_o resemble_v she_o in_o the_o same_o accident_n and_o so_o do_v a_o little_a child_n a_o girl_n of_o her_o elder_a daughter_n but_o none_o of_o her_o son_n while_o i_o be_v there_o i_o have_v a_o particular_a curiosity_n to_o see_v they_o all_o and_o though_o it_o be_v not_o easy_o permit_v to_o christians_n to_o speak_v familiar_o with_o mahometan_a woman_n yet_o the_o condition_n i_o be_v in_o there_o and_o the_o civility_n of_o the_o bassa_n give_v i_o the_o opportunity_n of_o full_a view_n and_o discourse_n with_o they_o and_o the_o old_a woman_n tell_v i_o that_o her_o mother_n and_o grandmother_n have_v be_v in_o the_o same_o manner_n but_o for_o they_o it_o rest_v upon_o her_o credit_n the_o other_o i_o see_v myself_o but_o the_o opinion_n which_o these_o accident_n seem_v to_o support_v though_o at_o the_o first_o view_n it_o seem_v smooth_o to_o satisfy_v our_o inquiry_n and_o reject_v fair_o to_o compass_v the_o make_n of_o a_o live_a creature_n yet_o look_v further_o into_o it_o we_o shall_v find_v it_o fall_v exceed_o short_a of_o its_o promise_a and_o meet_v with_o such_o difficulty_n as_o it_o can_v overcome_v for_o first_o let_v we_o cast_v about_o how_o this_o compound_n of_o several_a part_n that_o seru_v for_o the_o generation_n of_o a_o new_a live_a creature_n can_v be_v gather_v from_o every_o part_n and_o member_n of_o the_o parent_n so_o to_o carry_v with_o it_o in_o little_a the_o complete_a nature_n of_o it_o the_o meaning_n hereof_o must_v be_v that_o this_o superfluous_a aliment_n either_o pass_v through_o all_o and_o every_o little_a part_n 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red_a the_o reason_n hereof_o be_v that_o the_o colour_n which_o appear_v in_o the_o glass_n be_v of_o the_o nature_n of_o those_o luminous_a colour_n we_o first_o explicate_v that_o arise_v from_o look_v upon_o white_a and_o black_a border_v together_o for_o a_o candle_n stand_v in_o the_o air_n be_v as_o it_o be_v a_o white_a situate_v between_o two_o black_n the_o circumstant_fw-la dusky_a air_n have_v the_o nature_n of_o a_o black_a so_o then_o that_o side_n of_o the_o candle_n which_o be_v see_v through_o the_o thick_a part_n of_o the_o glass_n appear_v red_a and_o that_o which_o be_v see_v through_o the_o thin_a appear_v blue_a in_o the_o same_o manner_n as_o when_o we_o look_v through_o the_o glass_n whereas_o the_o colour_n shine_v contrariwise_o upon_o a_o paper_n or_o reflect_a object_n as_o we_o have_v already_o declare_v together_o with_o the_o reason_n of_o both_o these_o appearance_n each_o fit_v to_o its_o proper_a case_n of_o look_v through_o the_o glass_n upon_o the_o luminous_a object_n surround_v with_o darkness_n in_o the_o one_o and_o of_o observe_v the_o effect_n wrought_v by_o the_o same_o luminous_a object_n in_o some_o medium_n or_o upon_o some_o reflectent_a superficies_n in_o the_o other_o and_o to_o confirm_v this_o if_o a_o white_a paper_n be_v set_v stand_v hollow_a before_o the_o glass_n like_o half_a a_o hollow_a pillar_n who_o flat_n stand_v edgeways_o towards_o the_o glass_n so_o as_o both_o the_o edge_n may_v be_v see_v through_o it_o the_o further_a edge_n will_v seem_v blue_a and_o the_o near_a will_v be_v red_a and_o the_o like_a will_v happen_v if_o the_o paper_n be_v hold_v in_o the_o free_a air_n parallel_v to_o the_o low_a superficies_n of_o the_o glass_n without_o any_o black_a carpet_n to_o limit_v both_o end_n of_o it_o which_o serve_v to_o make_v the_o colour_n the_o smart_a so_o that_o in_o both_o case_n the_o air_n serve_v manifest_o for_o a_o black_a in_o the_o first_o between_o the_o two_o white_a edge_n and_o in_o the_o second_o limit_v the_o two_o white_a end_n and_o by_o consequence_n the_o air_n about_o the_o candle_n must_v likewise_o serve_v for_o two_o black_n include_v the_o light_a candle_n between_o they_o several_a other_o delightful_a experiment_n of_o luminous_a colour_n i_o may_v produce_v to_o confirm_v the_o ground_n i_o have_v lay_v for_o the_o nature_n and_o make_n of_o they_o but_o i_o conceive_v these_o i_o have_v mention_v be_v abundant_o enough_o for_o the_o end_n i_o propose_v to_o myself_o therefore_o i_o will_v take_v my_o leave_n of_o this_o subtle_a and_o nice_a subject_n refer_v my_o reader_n if_o he_o be_v curious_a to_o entertain_v himself_o with_o a_o full_a variety_n of_o such_o shine_a wonder_n to_o our_o ingenious_a countryman_n and_o my_o worthy_a friend_n mr._n hall_n who_o at_o my_o last_o be_v at_o liege_n show_v i_o there_o most_o of_o the_o experience_n i_o have_v mention_v together_o with_o several_a other_o very_a fine_a and_o remarkable_a curiosity_n 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in_o part_n the_o other_o defect_n hope_v on_o the_o other_o side_n be_v in_o such_o sort_n defective_a from_o joy_n that_o nevertheless_o it_o have_v a_o kind_n of_o constancy_n and_o moderate_a quantity_n and_o regularity_n in_o its_o motion_n and_o therefore_o be_v account_v to_o be_v the_o least_o hurtful_a of_o all_o the_o passion_n and_o that_o which_o more_o prolong_v man_n life_n and_o thus_o you_o see_v how_o those_o motion_n which_o we_o call_v passion_n be_v engender_v in_o the_o heart_n and_o what_o they_o be_v let_v we_o then_o in_o the_o next_o place_n consider_v what_o will_v follow_v in_o the_o passion_n rest_n of_o the_o body_n out_o of_o these_o variety_n of_o passion_n once_o raise_v in_o the_o heart_n and_o send_v into_o the_o brain_n it_o be_v evident_a that_o according_a to_o the_o nature_n and_o quality_n of_o these_o motion_n the_o heart_n must_v needs_o in_o every_o one_o of_o they_o void_a out_o of_o itself_o into_o the_o artery_n a_o great_a or_o lesser_a quantity_n of_o blood_n and_o that_o in_o divers_a fashion_n and_o the_o artery_n which_o lie_v fit_a to_o receive_v these_o sudden_a egestion_n of_o blood_n be_v those_o which_o go_v into_o the_o brain_n which_o course_n be_v direct_o upward_o we_o can_v doubt_v but_o that_o it_o be_v the_o hot_a and_o subtle_a part_n of_o the_o blood_n and_o the_o full_a of_o spirit_n that_o fly_v that_o way_n these_o spirit_n then_o run_v a_o long_a and_o perplex_a journey_n up_o and_o down_o in_o the_o brain_n by_o various_a meander_n and_o anfractuosity_n be_v there_o mingle_v with_o the_o humid_a steam_n of_o the_o brain_n itself_o and_o therewith_o cool_v and_o come_v at_o last_o to_o smoke_v at_o liberty_n in_o the_o hollow_a ventricle_n of_o the_o brain_n by_o reek_v out_o of_o the_o little_a arterial_a branch_n that_o weave_v the_o plexus_fw-la choroide_v or_o net_n we_o speak_v of_o erewhile_o and_o they_o be_v now_o grow_v heavy_a fall_v by_o their_o natural_a course_n into_o that_o part_n 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that_o the_o succession_n of_o their_o swell_n will_v hardly_o be_v perceptible_a as_o a_o sudden_a and_o violent_a inundation_n of_o water_n seem_v to_o rise_v on_o the_o side_n of_o the_o channel_n as_o it_o do_v at_o at_o the_o mill-dam_n though_o reason_n assure_v we_o it_o must_v begin_v there_o because_o there_o it_o be_v first_o stop_v on_o the_o contrary_a side_n if_o the_o spirit_n be_v few_o they_o may_v be_v in_o such_o a_o proportion_n as_o to_o fill_v only_o the_o low_a neru_n and_o to_o communicate_v little_a of_o themselves_o to_o any_o of_o the_o other_o and_o this_o be_v the_o case_n in_o the_o passion_n of_o fear_n which_o be_v store_v with_o few_o spirit_n than_o any_o other_o passion_n that_o cause_v a_o motion_n in_o the_o body_n it_o move_v the_o leg_n most_o and_o so_o carry_v the_o animal_n that_o be_v afraid_a with_o violence_n from_o the_o object_n that_o affright_v he_o although_o in_o truth_n it_o be_v a_o faint_a hope_n of_o escape_v mingle_v with_o fear_n which_o beget_v this_o motion_n for_o when_o fear_n be_v single_a and_o at_o its_o height_n it_o stop_v all_o motion_n by_o contract_v the_o spirit_n and_o thence_o be_v call_v stupor_n as_o well_o as_o grief_n for_o the_o same_o reason_n and_o according_o we_o see_v extreme_a coward_n in_o the_o extremity_n of_o their_o fear_n have_v not_o the_o courage_n to_o run_v away_o no_o more_o than_o to_o defend_v or_o help_v themselves_o by_o any_o other_o motion_n but_o if_o there_o be_v more_o abundance_n of_o spirit_n than_o the_o upper_a part_n be_v also_o move_v as_o well_o as_o the_o leg_n who_o motion_n contribute_v to_o defence_n but_o the_o brain_n itself_o and_o the_o sense_n which_o be_v in_o the_o head_n be_v the_o first_o in_o the_o course_n of_o this_o flood_n of_o spirit_n that_o be_v send_v from_o the_o heart_n to_o the_o head_n it_o be_v impossible_a but_o that_o some_o part_n of_o they_o shall_v be_v press_v into_o the_o neru_n of_o those_o sense_n and_o so_o will_v make_v 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that_o every_o action_n of_o thou_o be_v it_o never_o so_o slight_a be_v main_o mischievous_a or_o be_v it_o never_o so_o bedeck_v with_o those_o specious_a consideration_n which_o the_o wise_a man_n of_o the_o world_n judge_v important_a be_v foolish_a absurd_a and_o unworthy_a of_o a_o man_n unworthy_a of_o one_o that_o understand_v and_o acknowledge_v thy_o dignity_n if_o in_o it_o there_o be_v any_o speck_n or_o through_o it_o there_o appear_v any_o spark_n of_o those_o mean_a and_o flat_a motive_n which_o with_o a_o false_a bias_n draw_v any_o way_n aside_o from_o attain_v that_o happiness_n we_o expect_v in_o thou_o that_o happiness_n ought_v to_o be_v the_o end_n and_o mark_v we_o level_v at_o that_o the_o rule_n and_o model_n of_o all_o our_o action_n that_o the_o measure_n of_o every_o circumstance_n of_o every_o atom_n of_o whatever_o we_o bestow_v so_o precious_a a_o thing_n upon_o as_o the_o employment_n of_o thou_o be_v but_o we_o must_v not_o so_o slight_o pass_v over_o 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to_o tumble_v humane_a nature_n down_o the_o hill_n yet_o if_o a_o contrary_a force_n more_o efficacious_a than_o they_o with_o all_o their_o turhulent_a &_o misty_a steam_n impel_v it_o another_o way_n it_o must_v needs_o obey_v that_o strong_a power_n let_v we_o then_o examine_v who_o motive_n the_o soul_n or_o the_o sense_n in_o their_o own_o nature_n work_v most_o efficacious_o in_o man._n we_o be_v sure_a that_o what_o pleasure_n he_o receiu_v he_o receiu_v by_o mean_n of_o his_o soul_n even_o all_o corporal_a pleasure_n for_o be_v the_o work_a object_n never_o so_o agreeable_a and_o please_a to_o he_o he_o reap_v thence_o small_a delight_n if_o in_o the_o mean_a time_n his_o soul_n attention_n be_v carry_v another_o way_n from_o it_o certain_o then_o those_o thing_n must_v affect_v the_o soul_n most_o powerful_o which_o be_v connatural_a to_o she_o and_o which_o she_o seize_v on_o and_o relish_v immediate_o rather_o those_o impure_a one_o which_o come_v sophisticated_a to_o she_o 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or_o quiddity_n as_o of_o magnitude_n of_o place_n of_o activity_n or_o the_o like_a in_o which_o this_o excellency_n of_o a_o indivisibles_n equalize_v a_o large_a extent_n be_v consider_v my_o fantasy_n will_v offer_v to_o wrestle_v with_o it_o and_o peradventure_o by_o strong_a abstraction_n and_o deep_a retirement_n into_o the_o closet_n of_o judgement_n i_o may_v hazard_v to_o frame_v some_o likeness_n of_o it_o but_o that_o wherein_o this_o multiplication_n be_v be_v the_o noble_a the_o high_a and_o the_o root_n of_o all_o other_o notion_n it_o be_v be_v and_o existence_n itself_o i_o myself_o while_o i_o be_o have_v my_o existence_n determine_v but_o to_o one_o poor_a instant_n of_o time_n and_o beyond_o that_o i_o be_o assure_v of_o nothing_o my_o slender_a thread_n of_o be_v may_v break_v i_o still_o find_v it_o may_v break_v asunder_o as_o near_o to_o that_o instant_n as_o i_o can_v suppose_v any_o thing_n to_o be_v near_o it_o and_o when_o i_o shall_v have_v suppose_v here_o it_o may_v break_v near_o and_o near_o and_o i_o can_v never_o arrive_v to_o settle_v the_o near_a point_n where_o it_o may_v snap_v in_o two_o but_o when_o time_n shall_v be_v no_o more_o or_o at_o least_o shall_v in_o respect_n of_o i_o be_v turn_v into_o eternity_n this_o this_o frail_a existence_n of_o i_o will_v be_v stretch_v out_o beyond_o the_o extent_n of_o all-conquering_a time_n what_o strange_a thing_n then_o be_v this_o admirable_a multiplication_n of_o existence_n or_o how_o may_v i_o be_v able_a to_o comprehend_v it_o existence_n be_v that_o which_o comprehend_v all_o thing_n and_o if_o god_n be_v not_o comprehend_v in_o it_o thereby_o it_o be_v that_o he_o be_v incomprehensible_a of_o we_o and_o he_o be_v not_o comprehend_v in_o it_o because_o himself_o be_v it_o he_o be_v existence_n and_o by_o be_v so_o he_o
touch_v gravity_n 6._o gravity_n and_o levity_n do_v not_o signify_v a_o intrinsical_v inclination_n to_o such_o a_o motion_n in_o the_o body_n themselves_o which_o be_v term_v heavy_a and_o light_a 7._o the_o more_o dense_a a_o body_n be_v the_o more_o swift_o it_o descend_v 8._o the_o velocity_n of_o body_n descend_v do_v not_o increase_v in_o proportion_n to_o the_o difference_n that_o may_v be_v between_o their_o several_a density_n 9_o more_n or_o less_o gravity_n produce_v a_o swister_n or_o a_o slow_a descend_v a_o heavy_a body_n aristotle_n argument_n to_o disprove_v motion_n in_o 〈◊〉_d be_v make_v good_a 10._o the_o reason_n why_o at_o the_o inferior_a quarter_n of_o a_o circle_n a_o body_n descend_v fast_a by_o the_o arch_n of_o that_o quarter_n then_o by_o the_o chord_n of_o it_o 1._o the_o first_o objection_n answer_v why_o a_o hollow_a body_n descend_v flower_n then_o a_o solid_a one_o 2_o the_o second_o objection_n answer_v and_o the_o reason_n show_v why_o atom_n 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1._o that_o reflection_n be_v a_o kind_n of_o violent_a motion_n 2._o reflection_n be_v make_v at_o equal_a angle_n 3._o the_o cause_n and_o property_n of_o undulation_n 4._o refraction_n at_o the_o entrance_n into_o the_o reflectent_a body_n be_v towà rds_o the_o perpendicular_a at_o the_o go_v out_o be_v from_o it_o when_o the_o second_o superficies_n be_v parallel_n to_o the_o first_o 6._o a_o answer_n to_o the_o argument_n bring_v in_o favour_n of_o monsir_fw-fr des_fw-fr cartes_n his_o opinion_n 7._o the_o true_a cause_n of_o refraction_n of_o light_n both_o at_o its_o entrance_n and_o at_o its_o go_v out_o from_o the_o reflect_a body_n 8._o a_o general_a rule_n to_o know_v the_o nature_n of_o reflection_n and_o refraction_n in_o all_o sort_n of_o surface_n 9_o a_o body_n of_o great_a part_n and_o great_a pore_n make_v a_o great_a refraction_n than_o one_o of_o lesser_a part_n and_o lesser_a pore_n 10._o a_o confirmation_n of_o the_o former_a doctrine_n out_o of_o the_o nature_n of_o body_n that_o refract_v light_a 1._o the_o connexion_n of_o this_o chapter_n with_o the_o rest_n and_o the_o author_n intent_n in_o it_o 2._o that_o there_o be_v a_o least_o size_n of_o body_n and_o that_o this_o least_o size_n be_v find_v in_o fire_n 3._o the_o first_o conjunction_n of_o part_n be_v in_o body_n of_o least_o size_n and_o it_o be_v make_v by_o the_o force_n of_o quantity_n 4._o the_o second_o sort_n of_o conjunction_n â—s_v compactedness_n in_o simple_a element_n and_o it_o proceed_v from_o density_n 5._o the_o three_o conjunction_n be_v of_o part_n of_o different_a element_n and_o it_o proceed_v from_o quantity_n and_o density_n together_o 6._o the_o reason_n why_o liquid_a body_n easy_o join_v together_o and_o dry_a one_o difficult_o 7._o that_o no_o two_o hard_a body_n can_v touch_v one_o another_o immediate_o 8._o how_o mix_v body_n be_v frame_v in_o general_n 9_o the_o cause_n of_o the_o several_a degree_n of_o solidity_n in_o mix_a body_n 10._o the_o rule_n whereto_o be_v reduce_v all_o the_o several_a combination_n of_o element_n in_o compound_v of_o mix_a body_n 11._o earth_n and_o water_n be_v the_o basis_n of_o all_o permanent_a mix_a body_n 12._o what_o kind_n of_o body_n those_o be_v where_o water_n be_v the_o basis_n and_o earth_n the_o pedominant_a element_n over_o the_o other_o two_o 13._o of_o these_o body_n where_o water_n be_v the_o b_o sis_fw-la air_n be_v the_o predominant_a element_n 14._o what_o kind_n of_o body_n result_v where_o water_n be_v the_o basis_n and_o fire_n the_o predominant_a element_n 15._o of_o those_o body_n where_o water_n be_v in_o excess_n it_o alone_o be_v both_o the_o basis_n and_o the_o predominant_a element_n 16._o of_o those_o body_n be_v earth_n alone_o be_v the_o basis_n and_o also_o the_o predominant_a in_o excess_n over_o the_o other_o three_o element_n 17._o of_o those_o body_n where_o earth_n be_v the_o basis_n and_o water_n the_o predominant_a element_n over_o the_o other_o two_o 18._o of_o 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most_o compact_a body_n 3._o the_o several_a effect_n of_o fiâ—e_n the_o second_o and_o chief_a instrument_n to_o dissolve_v compound_v body_n 4._o the_o reason_n why_o some_o body_n be_v not_o dissolve_v by_o fire_n 5._o the_o reason_n why_o fire_n melt_v gold_n but_o can_v consume_v it_o 6._o why_o lead_n be_v easy_o consume_v and_o calcine_v by_o fire_n 7._o why_o and_o how_o some_o body_n be_v divide_v by_o fire_n into_o spirit_n water_n oil_n salt_n and_o earth_n &_o what_o those_o part_n be_v 〈◊〉_d how_o water_n the_o three_o instrument_n to_o dissolve_v body_n dissolve_v calx_fw-la into_o salt_n and_o so_o into_o terra_fw-la damnata_fw-la 9_o how_o water_n mingle_v with_o salt_n become_v almost_o powerful_a agent_n to_o dissolve_v other_o body_n 20._o how_o putrefaction_n be_v cause_v 1._o what_o be_v the_o sphere_n of_o activity_n in_o corporeal_a agent_n 2._o the_o reason_n why_o no_o body_n can_v work_v in_o distance_n 3._o a_o objection_n answer_v against_o the_o manner_n 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of_o the_o great_a effect_n of_o rarefaction_n 4._o the_o first_o manner_n of_o condensation_n by_o heat_n 5._o the_o second_o manner_n of_o condensation_n by_o cold_a 3._o that_o ice_n be_v not_o water_v rarify_v but_o condense_v 7._o how_o wind_n snow_n and_o hail_n be_v make_v and_o wind_n by_o rain_n allay_v 8._o how_o part_n of_o the_o same_o or_o divers_a body_n be_v join_v more_o strong_o together_o by_o condensation_n 9_o vacuity_n can_v be_v the_o reason_n why_o water_n impregnate_v to_o the_o full_a with_o one_o kind_n of_o salt_n will_v notwithstanding_o receive_v more_o of_o another_o 10._o the_o true_a reason_n of_o the_o former_a effect_n 11._o the_o reason_n why_o body_n of_o the_o same_o nature_n join_v more_o easy_o together_o than_o other_o 1._o what_o attraction_n be_v and_o from_o whence_o it_o proceed_v 1._o the_o true_a sense_n of_o the_o maxim_n that_o nature_n abhor_v from_o vacuity_n 3._o the_o true_a rea_fw-la son_n of_o attraction_n 4._o water_n may_v be_v bring_v by_o the_o force_n of_o attraction_n to_o what_o height_n soever_o 5._o the_o doctrine_n touch_v the_o attraction_n of_o water_n in_o syphon_n 6._o that_o the_o syphon_n do_v not_o prove_v water_n to_o weigh_v in_o its_o own_o orb_n 7._o concern_v attraction_n cause_v by_o fire_n 8._o concern_v attraction_n make_v by_o virtue_n of_o hot_a body_n amulet_n etc._n etc._n 9_o the_o natural_a reason_n give_v for_o divers_a operation_n esteem_v by_o some_o to_o be_v magical_a 1._o what_o be_v filtration_n and_o how_o it_o be_v effect_v 2._o what_o cause_v the_o water_n in_o filtration_n to_o ascend_v 3._o why_o the_o filter_n will_v not_o drop_v unless_o the_o label_n hang_v low_a than_o the_o water_n 4._o of_o the_o motion_n of_o restitution_n and_o why_o some_o body_n stand_v bend_v other_o not_o 5._o why_o some_o bo_z die_v return_v only_o in_o part_n to_o their_o natural_a figure_n other_o entire_o 6._o concern_v the_o nature_n of_o those_o body_n which_o shrink_v and_o stretch_v 7._o how_o great_a &_o wonderful_a effect_n proceed_v from_o small_a plain_a and_o simple_a principle_n 8._o concern_v electrical_a at_o action_n and_o the_o cause_n of_o it_o 6._o cabeus_n his_o opinion_n reâ—uted_v concern_v the_o cause_n of_o electrical_a motion_n 1._o the_o extreme_a heat_n of_o the_o sun_n under_o the_o zodiac_n draw_v a_o stream_n of_o air_n from_o each_o pole_n into_o the_o torrid_a zone_n zone_n chap._n 18._o sect._n 7._o 2._o the_o atom_n of_o these_o two_o stream_n come_v together_o be_v apt_a to_o incorporate_v with_o one_o another_o 3._o by_o the_o meeting_n and_o mingle_v together_o of_o these_o stream_n at_o the_o equator_fw-la divers_a rivulet_n of_o atom_n of_o each_o pole_n be_v continuate_v from_o one_o pole_n to_o the_o other_o 4._o of_o these_o atom_n incorporate_v with_o some_o fit_a matter_n in_o the_o bowel_n of_o the_o earth_n be_v make_v a_o stone_n 5._o this_o stone_n work_v by_o emanation_n join_v with_o agree_v stream_n that_o meet_v they_o in_o the_o air_n and_o in_o fine_a it_o be_v a_o loadstone_n 6_o a_o method_n for_o make_v experience_n on_o any_o subject_n 7._o the_o lodestone_n generation_n by_o atom_n flow_v from_o both_o pole_n be_v confirm_v by_o experiment_n observe_v in_o the_o stone_n itself_o 8._o experiment_n to_o prove_v that_o the_o loadstone_n work_v by_o emanation_n meet_v with_o agree_v stream_n 1._o the_o operation_n of_o the_o loadstone_n be_v wrought_v by_o body_n and_o not_o by_o quality_n 2._o objection_n against_o the_o former_a position_n answer_v 3._o the_o loadstone_n be_v imbue_v with_o his_o virtue_n from_o another_o body_n 4_o the_o virtue_n of_o the_o loadstone_n be_v a_o double_a and_o not_o one_o simple_a virtue_n 5._o the_o virtue_n of_o the_o loadstone_n work_v more_o strong_o in_o the_o pole_n of_o it_o then_o in_o any_o other_o part_n 6._o the_o loadstone_n send_v forth_o its_o emanation_n spherical_o which_o be_v of_o two_o kindâ—_n and_o each_o kind_n be_v strong_a in_o that_o hemisphere_n through_o who_o polary_a part_n they_o issue_v out_o 7._o put_v two_o loadstone_n within_o the_o sphere_n of_o one_o another_o every_o part_n of_o one_o loadstone_n do_v not_o agree_v wâ—th_v every_o part_n of_o the_o other_o loadstone_n 8._o concetn_v the_o declination_n and_o other_o respect_n of_o a_o needle_n towards_o the_o loadstone_n it_o touch_v 8._o the_o virtue_n of_o the_o loadstone_n go_v from_o end_n to_o end_n in_o line_n almost_o parallel_v to_o the_o axis_n 10._o the_o virtue_n of_o the_o loadstone_n be_v not_o perfect_o spherical_a though_o the_o stone_n be_v such_o 11._o the_o intention_n of_o nature_n in_o all_o the_o operation_n of_o the_o loadstone_n be_v to_o make_v a_o union_n betwixt_o the_o attractive_a and_o attract_a body_n 12._o the_o main_a globe_n of_o the_o earth_n be_v not_o a_o loadstone_n 13._o the_o loadstone_n be_v generate_v in_o all_o part_n or_o climâ—t's_v of_o the_o earth_n 14._o the_o conformity_n betwixt_o the_o two_o motion_n of_o magnetic_a thing_n and_o of_o heavy_a thing_n 1._o which_o be_v the_o north_n and_o which_o the_o south_n pole_n of_o a_o loadstone_n 2._o whether_o any_o body_n beside_o magnetic_a one_o be_v attractive_a 3._o whether_o a_o iron_n place_v perpendicular_o towards_o the_o earth_n get_v a_o magnetical_a virtue_n of_o point_v towards_o the_o north_n or_o towards_o the_o south_n in_o that_o end_n that_o lie_v downward_o 4._o why_o loadstone_n affect_v iron_n better_o than_o one_o another_o 5._o gilbert_n reason_v refute_v touch_v a_o cape_v loadstone_n that_o take_v up_o more_o iron_n than_o one_o not_o cape_v and_o a_o iron_n impregnate_v that_o in_o some_o case_n draw_v more_o strong_o than_o the_o stone_n itself_o galileus_n his_o opinion_n touch_v the_o former_a effect_n refute_v 7._o the_o author_n solution_n to_o the_o former_a question_n 8._o the_o reason_n why_o in_o the_o former_a case_n a_o lesser_a lodestone_n draw_v the_o interjacent_a iron_n from_o the_o great_a 9_o why_o the_o variation_n of_o a_o touch_v needle_n from_o the_o north_n be_v great_a the_o near_a you_o go_v to_o the_o pole_n 10._o whether_o in_o the_o same_o part_n of_o the_o world_n a_o touch_v needle_n may_v it_o one_o time_n vary_v more_o fâ—om_n the_o north_n and_o at_o another_o time_n less_o 11._o the_o whâ—le_a doctrine_n of_o the_o loadstone_n sum_v up_o in_o short_a 1._o the_o connexion_n of_o the_o follow_a chapter_n with_o the_o precedent_a one_o 2._o concern_v several_a composition_n of_o mix_a body_n 3._o two_o sort_n of_o live_a creature_n 4._o a_o engine_n to_o express_v the_o first_o sort_n of_o live_a creature_n 5._o another_o engine_n by_o which_o may_v be_v express_v the_o second_o sort_n of_o live_a creature_n 4._o the_o two_o former_a engine_n and_o some_o other_o comparison_n apply_v to_o express_v the_o two_o several_a sort_n of_o live_a creature_n 7._o how_o plant_n be_v frame_v 8._o how_o sensitive_a creature_n be_v form_v 1._o the_o opinion_n that_o the_o seed_n contain_v formal_o every_o part_n of_o the_o parent_n 2._o the_o former_a opinion_n reject_v 3._o the_o author_n opinion_n of_o this_o question_n 4._o their_o opinion_n refute_v who_o hold_v that_o every_o thing_n contain_v formal_o all_o thing_n 5._o the_o author_n opinion_n concern_v the_o generation_n of_o animal_n declare_v and_o confirm_v that_o one_o substance_n be_v change_v into_o another_o 7._o concern_v the_o hatch_n of_o chicken_n and_o the_o generation_n of_o the_o other_o animal_n 8._o from_o whence_o it_o happen_v that_o the_o deficience_n or_o excresence_n of_o the_o parent_n body_n be_v often_o see_v in_o their_o child_n 9_o the_o difference_n between_o the_o author_n opinion_n anâ—â—he_v former_a 〈◊〉_d 10_o that_o the_o heart_n be_v imbue_v with_o the_o general_a specifike_n virtue_n of_o the_o whole_a body_n whereby_o be_v confirm_v the_o doctrine_n of_o the_o two_o former_a paragraphes_n 11_o that_o the_o heart_n be_v the_o first_o part_n generate_v in_o a_o live_a 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which_o make_v little_a part_n of_o body_n natural_o heavy_a descend_v slow_o in_o regard_n of_o the_o velocity_n of_o great_a part_n of_o the_o same_o body_n descend_v the_o doctrine_n of_o which_o we_o intend_v to_o deliver_v hereafter_o other_o therefore_o perceive_v this_o rule_n to_o fall_v short_a have_v endeavour_v body_n to_o piece_n it_o out_o by_o the_o mixtion_n of_o vacuity_n among_o body_n believe_v it_o be_v that_o which_o make_v one_o rare_a than_o another_o which_o mixtion_n they_o do_v not_o put_v always_o immediate_a to_o the_o main_a body_n they_o consider_v but_o if_o it_o have_v other_o rare_a and_o light_a body_n mingle_v with_o it_o they_o conceive_v this_o mixtion_n immediate_a only_o to_o the_o rare_a or_o light_a as_o for_o example_n a_o crystal_n be_v light_a and_o consequent_o rare_a than_o a_o diamond_n they_o will_v not_o say_v there_o be_v more_o vacuity_n in_o a_o crystal_n then_o in_o a_o diamond_n but_o that_o the_o pore_n of_o a_o crystal_n be_v great_a and_o consequent_o there_o be_v more_o air_n in_o a_o crystal_n to_o fill_v the_o pore_n of_o it_o then_o be_v in_o a_o diamond_n and_o the_o vacuity_n be_v in_o the_o air_n which_o abound_v in_o a_o crystal_n more_o than_o in_o a_o diamond_n make_v that_o light_a and_o rare_a than_o this_o by_o the_o more_o vacuite_n that_o be_v in_o the_o great_a quantity_n of_o air_n which_o be_v mingle_v with_o it_o but_o against_o this_o suppsition_n a_o powerful_a adversary_n be_v urge_v for_o aristotle_n in_o his_o 4._o book_n of_o physics_n have_v demonstrate_v that_o there_o can_v be_v no_o motion_n in_o vacuity_n it_o be_v true_a they_o endeavour_v to_o evade_v his_o demonstration_n as_o not_o reach_v home_o to_o their_o supposition_n by_o acknowledge_v it_o to_o be_v a_o evident_a one_o in_o such_o a_o vacuity_n as_o he_o there_o speak_v of_o which_o he_o suppose_v so_o great_a that_o a_o body_n may_v swim_v in_o it_o as_o in_o a_o ocean_n and_o not_o touch_v or_o be_v near_o any_o 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scholastic_a term_n as_o may_v be_v but_o indeed_o the_o inconvenience_n that_o follow_v out_o of_o this_o supposition_n of_o vacuity_n be_v so_o great_a as_o it_o be_v impossible_a by_o any_o mean_n to_o slide_v they_o over_o as_o for_o example_n let_v we_o borrow_v of_o gallileus_n the_o proportion_n of_o weight_n between_o water_n and_o air_n he_o 18._o show_v we_o how_o the_o one_o be_v 400_o time_n heavy_a than_o the_o other_o and_o marinus_n ghetaldus_n teach_v we_o that_o gold_n be_v 19_o time_n heavy_a than_o water_n so_o that_o gold_n must_v be_v 7600_o time_n heavy_a than_o air_n now_o then_o consider_v that_o nothing_o in_o a_o body_n can_v weigh_v promote_v but_o the_o solid_a part_n of_o it_o it_o follow_v that_o the_o proportion_n of_o the_o part_n of_o gold_n in_o a_o sphere_n of_o a_o inch_n diameter_n be_v to_o the_o part_n of_o the_o air_n of_o a_o like_a dimension_n as_o 7600_o be_v to_o one_o therefore_o in_o air_n itself_o the_o vacuity_n that_o be_v suppose_v in_o it_o will_v be_v to_o the_o solid_a part_n of_o it_o in_o the_o same_o proportion_n as_o 7600_o to_o one_o indeed_o the_o proportion_n of_o difference_n shall_v be_v great_a for_o even_o in_o gold_n many_o vacuity_n must_v be_v admit_v as_o appear_v by_o the_o heat_n of_o it_o which_o show_v that_o in_o every_o least_o part_n it_o be_v exceed_o porous_a but_o according_a to_o this_o rate_n without_o press_v the_o inconvenience_n any_o further_a the_o air_n will_v by_o this_o reckon_n appear_v to_o be_v like_o a_o net_n who_o hole_n &_o distance_n be_v to_o the_o line_n and_o thread_n in_o the_o proportion_n of_o 7600_o to_o one_o and_o so_o will_v be_v liable_a to_o have_v little_a part_n of_o its_o body_n swim_v in_o those_o great_a vacuity_n contrary_a to_o what_o they_o strive_v to_o avoid_v which_o will_v be_v exceed_o more_a if_o we_o find_v on_o the_o one_o side_n any_o body_n heavy_a &_o denser_n then_o gold_n &_o that_o be_v so_o solid_a as_o to_o exclude_v all_o vacuity_n &_o 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in_o proportion_n to_o their_o cause_n it_o follow_v that_o this_o increase_n be_v in_o a_o determinate_a proportion_n which_o galileus_n to_o who_o we_o owe_v the_o great_a part_n of_o what_o be_v know_v concern_v motion_n teach_v we_o how_o to_o find_v out_o and_o to_o discover_v what_o degree_n of_o celerity_n any_o movable_a that_o be_v move_v by_o nature_n have_v in_o any_o determinate_a part_n of_o the_o space_n it_o move_v in_o have_v settle_v these_o condition_n of_o motion_n we_o shall_v do_v well_o in_o one_o the_o next_o place_n to_o inquire_v after_o the_o cause_n of_o it_o as_o well_o in_o the_o body_n move_v as_o also_o in_o the_o mover_n that_o occasion_n the_o motion_n and_o because_o we_o have_v already_o show_v that_o local_a motion_n be_v nothing_o in_o substance_n but_o division_n we_o may_v determine_v that_o those_o cause_n which_o contribute_v to_o division_n or_o resist_v it_o be_v the_o cause_n which_o make_v or_o resist_v local_a motion_n it_o have_v also_o 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quality_n it_o be_v beside_o the_o natural_a manner_n of_o operation_n be_v to_o work_v according_a to_o the_o capacity_n of_o the_o subject_n but_o when_o a_o body_n be_v in_o the_o midst_n of_o a_o uniform_a medium_n or_o space_n the_o subject_n be_v equal_o prepare_v on_o all_o side_n to_o receive_v the_o action_n of_o that_o body_n wherefore_o though_o we_o shall_v allow_v it_o a_o force_n to_o move_v if_o it_o be_v a_o natural_a agent_n and_o have_v no_o understanding_n it_o must_v work_v indifferent_o on_o all_o side_n and_o by_o consequence_n can_v move_v on_o any_o side_n for_o if_o you_o say_v that_o the_o agent_n in_o this_o case_n where_o the_o medium_n be_v uniform_a work_v rather_o upon_o one_o side_n than_o upon_o another_o it_o must_v be_v because_o this_o determination_n be_v within_o the_o agent_n itself_o and_o not_o out_o of_o the_o circumstant_fw-la disposition_n which_o be_v the_o manner_n of_o work_v of_o those_o substance_n that_o work_v for_o a_o end_n of_o their_o own_o that_o be_v of_o understand_a creature_n and_o not_o of_o natural_a hody_n now_o he_o that_o will_v exact_o determine_v what_o motion_n a_o body_n have_v or_o be_v apt_a to_o have_v determine_v by_o supposition_n the_o force_n of_o number_n the_o agent_n must_v calculate_v the_o proportion_n of_o all_o these_o three_o condition_n of_o the_o movable_a and_o the_o quality_n of_o the_o medium_n which_o be_v a_o proceed_n too_o particular_a for_o the_o intention_n of_o our_o discourse_n but_o to_o speak_v in_o common_a it_o will_v not_o be_v amiss_o to_o examine_v in_o what_o proportion_n motion_n do_v increase_v since_o we_o have_v conclude_v that_o all_o motion_n proceed_v from_o quiet_a by_o a_o continual_a increase_n galileus_n that_o miracle_n of_o our_o age_n and_o who_o wit_n be_v able_a to_o discover_v whatever_o he_o have_v a_o mind_n to_o employ_v it_o about_o have_v tell_v we_o that_o natural_a motion_n increase_v in_o the_o proportion_n of_o the_o odd_a number_n which_o to_o express_v by_o example_n be_v thus_o suppose_v that_o in_o the_o go_n of_o the_o first_o yard_n it_o have_v one_o degree_n of_o velocity_n then_o in_o the_o go_n of_o the_o second_o yard_n it_o will_v have_v three_o degree_n and_o in_o go_v of_o the_o three_o it_o will_v have_v five_o and_o so_o onward_o still_o add_v two_o to_o the_o degree_n of_o the_o velocity_n for_o every_o one_o to_o the_o space_n or_o to_o express_v it_o more_o plain_o if_o in_o the_o first_o minute_n of_o time_n it_o go_v one_o yard_n of_o space_n then_o in_o the_o next_o minute_n it_o will_v go_v three_o yard_n in_o the_o three_o it_o will_v go_v five_o in_o the_o four_o seven_o and_o so_o forth_o but_o we_o must_v enlarge_v this_o proposition_n to_o all_o motion_n as_o we_o have_v do_v the_o former_a of_o the_o increase_n itself_o in_o velocity_n because_o the_o reason_n of_o it_o be_v common_a to_o all_o motion_n which_o be_v that_o all_o motion_n as_o may_v appear_v out_o of_o what_o we_o have_v former_o say_v proceed_v from_o two_o cause_n namely_o the_o agent_n or_o the_o force_n that_o move_v and_o the_o disposition_n of_o the_o body_n move_v as_o it_o be_v compose_v of_o the_o three_o quality_n we_o late_o explicate_v in_o which_o be_v to_o be_v note_v that_o the_o agent_n do_v not_o move_v simple_o by_o its_o own_o virtue_n but_o apply_v also_o the_o virtue_n of_o the_o body_n move_v which_o it_o have_v to_o divide_v the_o medium_n when_o it_o be_v put_v on_o as_o when_o we_o cut_v with_o a_o knife_n the_o effect_n proceed_v from_o the_o knife_n press_v on_o by_o the_o hand_n or_o from_o the_o hand_n as_o apply_v and_o put_v in_o action_n the_o edge_n and_o cut_a power_n of_o the_o knife_n now_o this_o in_o physics_n and_o nature_n be_v clear_o parallel_v to_o what_o in_o geometry_n
as_o positive_a gravity_n or_o levity_n but_o that_o their_o course_n upward_o or_o downward_o happen_v to_o they_o by_o the_o order_n of_o nature_n which_o by_o outward_a cause_n give_v they_o a_o impulse_n one_o of_o these_o way_n without_o which_o they_o will_v rest_v quiet_o wherever_o they_o be_v as_o be_v of_o themselves_o indifferent_a to_o any_o motion_n but_o because_o our_o word_n express_v our_o notion_n and_o they_o be_v frame_v according_a to_o what_o appear_v to_o we_o when_o we_o observe_v any_o body_n to_o descend_v constant_o towards_o our_o earth_n we_o call_v it_o heavy_a and_o if_o it_o move_v contrariwise_o we_o call_v it_o light_n but_o we_o must_v take_v heed_n of_o consider_v such_o gravity_n and_o levity_n as_o if_o they_o be_v entity_n that_o work_v such_o effect_n since_o upon_o examination_n it_o appear_v that_o these_o word_n be_v but_o short_a expression_n of_o the_o effect_n themselves_o the_o cause_n whereof_o the_o vulgar_a of_o mankind_n who_o impose_v name_n to_o thing_n do_v not_o consider_v but_o leave_v that_o work_n to_o philosopher_n to_o examine_v while_o they_o only_o observe_v what_o they_o see_v do_v and_o agree_v upon_o word_n to_o express_v that_o which_o word_v neither_o will_n in_o all_o circumstance_n always_o agree_v to_o the_o same_o thing_n for_o as_o cork_n descend_v in_o air_n and_o ascend_v in_o water_n so_o also_o will_v any_o other_o body_n descend_v if_o it_o light_v among_o other_o more_o rare_a than_o itself_o and_o will_v ascend_v if_o it_o light_v among_o other_o that_o be_v more_o dense_a than_o it_o and_o we_o term_v body_n light_a and_o heavy_a only_o according_a to_o the_o course_n which_o we_o usual_o see_v they_o take_v now_o proceed_v further_o on_o and_o consider_v how_o there_o be_v descend_v various_a degree_n of_o density_n or_o gravity_n it_o be_v irrational_a to_o conceive_v that_o all_o body_n shall_v descend_v at_o the_o same_o rate_n and_o keep_v equal_a pace_n with_o one_o another_o in_o their_o journey_n downward_o for_o as_o two_o knife_n whereof_o one_o have_v a_o keen_a edge_n than_o the_o other_o be_v press_v with_o equal_a strength_n into_o like_a yield_a matter_n the_o sharp_a will_v cut_v deep_a than_o the_o other_o so_o if_o of_o two_o body_n one_o be_v more_o dense_a than_o the_o other_o that_o which_o be_v so_o will_v cut_v the_o air_n more_o powerful_o and_o descend_v fast_o than_o the_o other_o for_o in_o this_o case_n density_n may_v be_v compare_v to_o the_o knief_n edge_n since_o in_o it_o consist_v the_o power_n of_o divide_v as_o we_o have_v heretofore_o determine_v and_o therefore_o the_o press_v they_o downward_o by_o the_o descend_a atom_n be_v equal_a in_o both_o or_o peradventure_o great_a in_o the_o more_o dense_a body_n as_o anon_o we_o shall_v have_v occasion_n to_o touch_v and_o there_o be_v no_o other_o cause_n to_o determine_v they_o that_o way_n the_o effect_n of_o division_n must_v be_v the_o great_a where_o the_o divider_n be_v the_o more_o powerful_a which_o the_o more_o dense_a body_n be_v and_o density_n therefore_o cut_v more_o strong_o through_o the_o resistance_n of_o the_o air_n and_o consequent_o pass_v more_o swift_o that_o way_n it_o be_v determine_v to_o move_v i_o do_v not_o mean_v that_o the_o velocity_n of_o their_o descent_n shall_v be_v in_o the_o same_o proportion_n to_o one_o another_o as_o their_o density_n be_v for_o beside_o their_o density_n those_o other_o consideration_n which_o we_o have_v discourse_v of_o above_o when_o we_o examine_v the_o cause_n of_o velocity_n in_o motion_n must_v likewise_o be_v balance_v and_o out_o of_o the_o comparison_n of_o all_o they_o not_o out_o of_o the_o consideration_n of_o any_o one_o alone_a result_v the_o difference_n of_o their_o velocity_n nor_o that_o neither_o but_o in_o as_o much_o as_o concern_v the_o consideration_n of_o the_o moveable_n for_o to_o make_v the_o calculation_n exact_a the_o medium_fw-la must_v likewise_o be_v consider_v as_o by_o and_o by_o we_o shall_v declare_v for_o since_o the_o motion_n depend_v of_o all_o they_o together_o though_o there_o shall_v be_v difference_n between_o the_o moveable_n in_o regard_n of_o one_o only_a and_o that_o the_o rest_n be_v equal_a yet_o the_o proportion_n of_o the_o difference_n of_o their_o motion_n must_v not_o follow_v the_o proportion_n of_o their_o difference_n in_o that_o one_o regard_n because_o their_o difference_n consider_v single_a in_o that_o regard_n will_v have_v one_o proportion_n and_o with_o the_o addition_n of_o the_o other_o consideration_n though_o alike_o in_o both_o to_o their_o difference_n in_o this_o they_o will_v have_v another_o as_o for_o example_n reckon_v the_o density_n of_o one_o movable_a to_o be_v double_a the_o density_n of_o another_o movable_n so_o that_o in_o that_o regard_n it_o have_v two_o degree_n of_o power_n to_o descend_v whereas_o the_o other_o have_v but_o one_o suppose_v then_o the_o other_o cause_n of_o their_o descent_n to_o be_v alike_o in_o both_o and_o reckon_v they_o all_o three_o and_o then_o join_v these_o three_o to_o the_o one_o which_o be_v cause_v by_o the_o density_n in_o one_o of_o the_o moveable_n as_o likewise_o to_o the_o two_o which_o be_v cause_v by_o the_o density_n in_o the_o other_o movable_a and_o you_o will_v find_v that_o thus_o altogether_o their_o difference_n of_o power_n to_o descend_v be_v no_o long_o in_o a_o double_a proportion_n as_o it_o will_v be_v if_o nothing_o but_o their_o density_n be_v consider_v but_o be_v in_o the_o proportion_n of_o five_o to_o four_o but_o after_o we_o have_v consider_v all_o that_o concern_v the_o moveable_n we_o be_v then_o to_o cast_v a_o eye_n upon_o the_o medium_fw-la they_o be_v to_o move_v in_o and_o we_o shall_v find_v the_o addition_n of_o that_o decrease_v the_o proportion_n of_o their_o difference_n exceed_o more_a according_a to_o the_o cessibility_n of_o the_o medium_fw-la which_o if_o it_o be_v air_n the_o great_a disproportion_n of_o its_o weight_n to_o the_o weight_n of_o those_o body_n which_o man_n use_v to_o take_v in_o make_v experience_n of_o their_o descent_n in_o that_o yield_a medium_fw-la will_v cause_v their_o difference_n of_o velocity_n in_o descend_v to_o be_v hardly_o perceptible_a even_o as_o the_o difference_n of_o a_o sharp_a or_o dull_a knife_n which_o be_v easy_o perceive_v in_o cut_v of_o flesh_n or_o bread_n be_v not_o to_o be_v distinguish_v in_o divide_v of_o water_n or_o oil_n and_o likewise_o in_o weight_n a_o pound_n and_o a_o scruple_n will_v bear_v down_o a_o dram_n in_o no_o sensible_a proportion_n of_o velocity_n more_o than_o a_o pound_n alone_o will_v do_v and_o yet_o put_v a_o pound_n in_o that_o scale_n in_o stead_n of_o the_o dram_n and_o then_o the_o difference_n of_o the_o scruple_n will_v be_v very_o notable_a so_o then_o those_o body_n who_o difference_n of_o descend_v in_o water_n be_v very_o sensible_a because_o of_o the_o great_a proportion_n of_o weight_n in_o water_n to_o the_o body_n that_o descend_v in_o it_o will_v yield_v no_o sensible_a difference_n of_o velocity_n when_o they_o descend_v in_o air_n by_o reason_n of_o the_o great_a disproportion_n of_o weight_n between_o air_n and_o the_o body_n that_o descend_v in_o it_o the_o reason_n of_o this_o will_v clear_o show_v itself_o in_o abstract_a proportion_n thus_o suppose_v air_n to_o have_v one_o degree_n of_o density_n and_o water_n to_o have_v 400_o then_o let_v the_o movable_a a._n have_v 410_o degree_n of_o density_n and_o the_o movable_a b._n have_v 500_o now_o compare_v their_o motion_n to_o one_o another_o in_o the_o several_a medium_n of_o air_n and_o water_n the_o exuperance_n of_o the_o density_n of_o a._n to_o water_n be_v 10_o degree_n but_o the_o exuperance_n of_o b._n to_o the_o same_o water_n be_v 100_o degree_n so_o that_o b._n must_v have_v in_o water_n swift_a than_o a_o in_o the_o proportion_n of_o 103_o to_o ten_o that_o be_v of_o 10_o to_o one_o then_o let_v we_o compare_v the_o exuperance_n of_o the_o two_o moveable_n over_o air_n a_o be_v 409_o time_n more_o dense_a than_o air_n but_z b_o be_v 499_o time_n more_o dense_a than_o it_o by_o which_o account_n the_o motion_n of_o b._n must_v be_v in_o that_o medium_n swift_a than_o the_o motion_n of_o a_o in_o the_o proportion_n of_o 499_o to_o 409_o that_o be_v about_o 50_o to_o 41_o which_o to_o avoid_v fraction_n we_o may_v account_v as_o 10_o to_o 8._o but_o in_o water_n they_o exceed_v one_o another_o as_o 10_o to_o one_o so_o that_o their_o difference_n of_o velocity_n must_v be_v scarce_o perceptible_a in_o air_n in_o respect_n of_o what_o it_o be_v in_o water_n out_o of_o all_o which_o discourse_n i_o only_o infer_v in_o common_a that_o a_o great_a velocity_n in_o motion_n will_v follow_v the_o great_a density_n of_o the_o movable_a without_o determine_v