aether_n which_o environ_n the_o globe_n abide_v there_o in_o a_o perfect_a state_n of_o tranquillity_n and_o unmolested_a by_o any_o foreign_a force_n have_v leave_v to_o rest_v press_v or_o gravitate_fw-la by_o its_o own_o law_n and_o according_a to_o its_o native_a tendency_n which_o liberty_n i_o say_v it_o do_v not_o enjoy_v on_o other_o part_n of_o the_o globe_n where_o the_o sun_n action_n be_v more_o in_o force_n thus_o then_o i_o concieve_v and_o have_v as_o well_o as_o i_o can_v explain_v how_o the_o pole_n of_o the_o earth_n verticity_n be_v obtain_v the_o surround_v fluid_a lean_v or_o gravitate_v on_o the_o surface_n thereof_o by_o a_o strong_a pressure_n in_o those_o two_o point_n of_o the_o globe_n than_o it_o can_v be_v think_v to_o do_v in_o any_o other_o part_n whatsoever_o which_o pressure_n like_o two_o fulciment_n prop_n hold_n and_o sustain_v it_o in_o that_o regular_a posture_n wherein_o we_o find_v it_o to_o move_v or_o to_o give_v a_o plain_a similitude_n of_o 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abode_n to_o as_o in_o our_o case_n be_v often_o in_o the_o cloud_n so_o that_o he_o who_o attempt_v to_o show_v she_o in_o the_o great_a undress_v may_v be_v think_v to_o do_v most_o right_o to_o her_o charm_n and_o whosoever_o shall_v give_v the_o best_a aim_n at_o the_o mean_n of_o resolve_v distant_a and_o doubtful_a cause_n by_o the_o plain_a and_o most_o familiar_a method_n such_o as_o nature_n by_o the_o law_n of_o mechanism_n seem_v to_o approve_v may_v be_v deem_v to_o be_v more_o in_o the_o way_n and_o to_o make_v the_o approach_n to_o truth_n more_o lightsome_a and_o intelligible_a than_o by_o remote_a and_o metaphysical_a speculation_n wherein_o we_o know_v the_o great_a wit_n have_v wander_v who_o according_a to_o their_o different_a modes_n of_o think_v have_v compass_v to_o solve_v appearance_n so_o many_o different_a way_n whereby_o we_o be_v teach_v just_o so_o much_o truth_n as_o to_o be_v sure_a that_o their_o system_n may_v be_v all_o false_a because_o we_o be_v 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etc._n which_o be_v poise_v very_o nice_o and_o tender_o sustain_v on_o its_o pole_n to_o adapt_v it_o for_o motion_n and_o then_o fair_o substitute_v and_o apply_v the_o cause_n which_o i_o conceive_v by_o the_o law_n of_o gravity_n be_v productive_a of_o the_o earth_n diurnal_a motion_n i_o reap_v the_o contentment_n to_o behold_v the_o effect_n of_o such_o cause_n work_v on_o the_o say_a matter_n to_o give_v credit_n in_o every_o article_n to_o what_o i_o have_v thereupon_o before_o imagine_v the_o machine_n so_o frame_v and_o fit_v visible_o revolve_v on_o its_o axis_n each_o revolution_n finish_v in_o about_o the_o space_n of_o three_o hour_n which_o experiment_n behold_v by_o my_o friend_n who_o be_v not_o present_o aware_a of_o the_o spring_n of_o such_o motion_n they_o be_v no_o less_o please_v than_o surprise_v finis_fw-la
a_o essay_n on_o the_o certainty_n and_o cause_n of_o the_o earth_n motion_n on_o its_o axis_n etc._n etc._n london_n print_v for_o jacob_n tonson_n at_o the_o iudge's-head_n in_o fleetstreet_n mdcxcviii_o a_o essay_n on_o the_o certainty_n and_o cause_n of_o the_o earth_n motion_n on_o its_o axis_n etc._n etc._n in_o a_o essay_n so_o new_a and_o difficult_a it_o may_v become_v i_o to_o begin_v with_o some_o apology_n to_o man_n of_o learning_n in_o mathematical_a science_n wherein_o i_o profess_v to_o have_v never_o aim_v high_a than_o to_o be_v competent_o furnish_v for_o business_n and_o practice_n in_o a_o active_a life_n wherefore_o to_o those_o gentleman_n for_o who_o merit_n no_o man_n have_v a_o great_a value_n i_o make_v this_o short_a excuse_n for_o treat_v my_o subject_n in_o so_o plain_a and_o familiar_a a_o manner_n namely_o that_o be_v conscious_a of_o my_o insufficiency_n by_o any_o show_n of_o learning_n to_o add_v to_o their_o stature_n it_o sort_v better_a with_o my_o talent_n and_o choice_n to_o speak_v my_o mind_n intelligible_o to_o common_a capacity_n whereby_o increase_v the_o number_n of_o my_o judge_n the_o truth_n probability_n or_o error_n of_o my_o conception_n will_v be_v better_o sift_v and_o discern_v for_o it_o shall_v be_v no_o mortification_n to_o consider_v with_o the_o wise_a man_n that_o chance_n have_v a_o great_a hand_n in_o every_o thing_n we_o do_v or_o think_v which_o by_o a_o kind_n of_o revelation_n often_o lead_v we_o to_o the_o retreat_n of_o truth_n through_o unaccountable_a labyrinth_n and_o long_a obscurity_n of_o cause_n on_o which_o reflection_n if_o i_o who_o be_o best_a acquaint_v with_o my_o self_n ascribe_v nothing_o to_o my_o own_o force_n of_o learning_n or_o penetration_n in_o my_o attempt_n to_o untie_v so_o hard_a a_o knot_n may_v thereby_o have_v a_o better_a claim_n to_o the_o candour_n of_o my_o reader_n and_o they_o shall_v but_o bare_o allow_v i_o the_o privilege_n of_o have_v stumble_v on_o a_o new_a and_o profitable_a notion_n capable_a of_o cultivation_n by_o the_o learned_a and_o of_o yield_a matter_n of_o speculation_n to_o other_o i_o shall_v reap_v all_o the_o pleasure_n i_o look_v for_o and_o as_o much_o honour_n as_o come_v to_o my_o share_n thus_o bespeak_v the_o candour_n of_o my_o reader_n i_o proceed_v by_o first_o impart_v a_o few_o article_n of_o my_o physical_a creed_n viz._n so_o far_o as_o i_o conceive_v it_o may_v concern_v my_o subject_n which_o till_o i_o shall_v be_v better_o inform_v bear_v great_a sway_n with_o i_o as_o be_v gather_v from_o the_o best_a collection_n and_o my_o meditation_n thereupon_o that_o i_o have_v be_v able_a to_o make_v from_o experiment_n and_o observation_n of_o matter_n of_o fact_n which_o article_n be_v first_o know_v as_o conceive_v they_o a_o necessary_a introduction_n towards_o clear_v the_o ground_n whereon_o i_o be_o to_o build_v i_o shall_v then_o proceed_v to_o my_o hypothesis_n for_o solve_v the_o earth_n motion_n on_o its_o axis_n etc._n etc._n by_o explain_v the_o cause_n by_o which_o i_o conceive_v it_o may_v fair_o and_o by_o mechanical_a law_n be_v prove_v and_o last_o in_o a_o discourse_n by_o itself_o i_o shall_v come_v to_o the_o proof_n and_o thereby_o show_v by_o what_o clue_n of_o deduction_n from_o natural_a cause_n i_o come_v to_o be_v establish_v in_o the_o persuasion_n i_o profess_v to_o be_v of_o touch_v this_o hard_a question_n wherein_o i_o have_v the_o rather_o engage_v from_o my_o observation_n of_o late_a of_o so_o many_o unprofitable_a attempt_n in_o new_a theory_n on_o philosophical_a subject_n where_o with_o ostentation_n of_o erudition_n and_o elocution_n author_n obtrude_v strange_a opinion_n dangerous_a in_o their_o consequence_n to_o our_o common_a faith_n and_o of_o no_o manner_n of_o instruction_n to_o human_a life_n neglect_v the_o while_n as_o perhaps_o think_v it_o beneath_o they_o to_o engage_v in_o study_n of_o utility_n whereby_o to_o improve_v our_o knowledge_n in_o nature_n which_o will_v enable_v we_o to_o see_v better_o before_o we_o in_o our_o way_n through_o this_o darksome_a vale_n of_o mortality_n wherein_o we_o sojourn_v conduct_v we_o with_o more_o pleasure_n and_o assurance_n in_o our_o passage_n and_o bring_v we_o with_o more_o safety_n to_o our_o port_n where_o all_o speculation_n about_o doubtful_a subject_n will_v be_v resolve_v into_o certainty_n first_o i_o believe_v that_o we_o neither_o have_v nor_o can_v attain_v any_o clear_a knowledge_n of_o the_o effect_n of_o matter_n and_o motion_n otherwise_o than_o as_o we_o become_v enlighten_v by_o their_o operation_n on_o our_o sense_n which_o by_o mean_n of_o the_o impression_n make_v on_o they_o make_v report_n thereof_o to_o the_o mind_n which_o give_v sentence_n true_a or_o false_a therein_o i_o hold_v also_o that_o the_o remote_a the_o situation_n of_o any_o cause_n be_v the_o light_a or_o weak_a the_o action_n and_o impression_n thereof_o must_v needs_o be_v on_o our_o organ_n 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enable_v we_o to_o distinguish_v i_o may_v i_o think_v safe_o and_o mechanical_o thence_o infer_v that_o such_o power_n so_o work_v must_v have_v some_o certain_a boundary_n which_o it_o can_v exceed_v and_o beyond_o which_o it_o be_v idle_a and_o of_o no_o effect_n wherefore_o i_o hence_o conclude_v that_o all_o rational_a reflection_n must_v needs_o there_o expire_v where_o the_o power_n by_o which_o those_o image_n be_v stamp_v which_o furnish_v the_o matter_n of_o our_o argument_n determine_v and_o that_o all_o speculation_n refine_v and_o excogitation_n about_o any_o thing_n whatsoever_o beyond_o or_o without_o this_o sphere_n of_o action_n which_o i_o shall_v have_v occasion_n further_o to_o explain_v be_v vain_a and_o fabulous_a this_o reflection_n though_o it_o may_v humble_v we_o by_o correct_v the_o enthusiasm_n of_o human_a imagination_n which_o be_v apt_a licentious_o to_o soar_v and_o wander_v without_o light_n or_o guide_n yet_o the_o fruit_n may_v be_v profitable_a for_o by_o thus_o contain_v our_o inquiry_n within_o that_o circle_n which_o hold_v all_o thing_n that_o be_v adequate_a to_o and_o may_v yield_v proper_a matter_n for_o our_o contemplation_n we_o shall_v have_v leisure_n to_o turn_v our_o mind_n with_o great_a attention_n and_o effect_n on_o subject_n of_o public_a utility_n which_o may_v at_o once_o avail_v we_o in_o the_o conduct_n of_o our_o life_n and_o do_v good_a in_o our_o generation_n than_o which_o no_o study_n be_v more_o praiseworthy_a nor_o can_v we_o by_o any_o mean_v better_a fulfil_v the_o end_n of_o our_o be_v pursuant_n to_o this_o reflection_n let_v we_o take_v into_o our_o view_n and_o thence_o frame_v a_o argument_n for_o our_o meditation_n some_o of_o the_o most_o remarkable_a object_n of_o the_o creation_n or_o of_o this_o visible_a material_a world_n namely_o such_o as_o seem_v to_o we_o to_o share_v the_o great_a power_n of_o action_n on_o this_o our_o globe_n among_o which_o after_o sort_v the_o whole_a species_n of_o thing_n and_o as_o i_o may_v say_v ransack_v nature_n over_o and_o over_o i_o believe_v i_o may_v challenge_v the_o most_o sceptical_a man_n live_v to_o specify_v or_o point_v we_o out_o to_o any_o one_o single_a instance_n of_o a_o visible_a be_v that_o may_v claim_v any_o degree_n of_o comparison_n with_o the_o sun_n whether_o we_o consider_v it_o in_o its_o beauty_n and_o glory_n surpase_v every_o thing_n we_o see_v or_o in_o its_o situation_n in_o the_o centre_n of_o the_o planetary_a world_n a_o position_n the_o most_o proper_a to_o dispense_v its_o roll_a power_n and_o influence_n or_o in_o its_o plain_a and_o sensible_a effect_n as_o be_v the_o visible_a cause_n of_o day_n and_o night_n winter_n and_o summer_n of_o animation_n vegetation_n etc._n etc._n all_o which_o be_v the_o indisputed_a product_n of_o that_o planet_n motion_n and_o virtue_n from_o these_o so_o many_o shine_a evidence_n hand_v to_o we_o by_o our_o
it_o remain_v that_o we_o determine_v how_o and_o which_o way_n this_o fluid_a put_v into_o motion_n may_v be_v think_v to_o take_v its_o flight_n i_o say_v then_o that_o the_o fluid_a invest_v that_o hemisphere_n wherein_o the_o sun_n fire_n chance_v to_o be_v in_o its_o great_a vigour_n be_v direct_v in_o its_o course_n by_o line_n draw_v or_o produce_v from_o the_o cause_n that_o act_v thereon_o namely_o the_o sun_n and_o this_o by_o the_o same_o mechanic_n law_n by_o which_o any_o body_n be_v find_v to_o move_v that_o be_v impel_v and_o drive_v out_o of_o its_o place_n by_o another_o body_n that_o have_v force_n enough_o to_o do_v it_o namely_o by_o right_a angle_n from_o the_o plane_n of_o the_o cause_n that_o act_n wherefore_o remark_v bare_o that_o a_o line_n conceive_a to_o be_v at_o any_o time_n draw_v from_o the_o body_n of_o the_o sun_n through_o the_o axis_n of_o the_o earth_n any_o where_o betwixt_o the_o tropic_n will_v not_o vary_v much_o from_o east_n and_o west_n this_o single_a note_n may_v suffice_v to_o show_v that_o the_o course_n or_o tendency_n of_o the_o move_a matter_n or_o fluid_n must_v be_v that_o way_n namely_o by_o right_a angle_n or_o thereabouts_o from_o the_o axis_n of_o the_o globe_n or_o which_o better_o express_v it_o by_o circle_n parallel_v a_o little_a more_o or_o less_o to_o the_o aequator_fw-la and_o not_o towards_o the_o pole_n thus_o state_v the_o boundary_n and_o tendency_n of_o the_o action_n or_o course_n by_o which_o the_o fluid_a wing_n its_o way_n that_o surround_v this_o earth_n i_o mean_v that_o portion_n thereof_o which_o we_o call_v the_o atmosphere_n i_o come_v last_o to_o make_v a_o short_a necessary_a note_n or_o two_o touch_v the_o effect_n of_o rarifaction_n and_o condensation_n viz._n according_a to_o common_a acceptation_n where_o i_o observe_v that_o the_o same_o body_n or_o quantity_n of_o matter_n when_o it_o be_v rarify_v become_v big_a or_o be_v extend_v in_o all_o its_o dimension_n and_o so_o 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