find_v in_o they_o thus_o elementary_a water_n though_o never_o so_o pure_a as_o distil_a rain-water_n have_v fluidity_n and_o coldness_n and_o humidity_n and_o transparency_n and_o volatility_n without_o have_v any_o of_o the_o tria_fw-la prima_fw-la and_o the_o pure_a earth_n as_o ash_n careful_o free_v from_o the_o fix_a salt_n have_v gravity_n and_o consistence_n and_o dryness_n and_o colour_n and_o fixity_n without_o owe_v they_o either_o to_o salt_n sulphur_n or_o mercury_n not_o to_o mention_v that_o there_o be_v celestial_a body_n which_o do_v not_o appear_v nor_o be_v wont_a to_o be_v pretend_v to_o consist_v of_o the_o tria_fw-la prima_fw-la that_o yet_o be_v endow_v with_o quality_n as_o the_o sun_n have_v light_a and_o as_o many_o philosopher_n think_v heat_v and_o colour_n and_o the_o moon_n have_v a_o determinate_a consistence_n and_o figuration_n as_o appear_v by_o her_o mountain_n and_o astronomer_n observe_v that_o the_o high_a planet_n and_o even_o the_o fix_a star_n appear_v to_o be_v differ_o colour_v but_o i_o shall_v not_o multiply_v instance_n of_o this_o kind_n because_o what_o i_o have_v say_v may_v not_o only_o serve_v for_o my_o present_a purpose_n but_o bring_v a_o great_a confirmation_n to_o what_o i_o late_o say_v when_o i_o note_v that_o the_o chemical_a principle_n be_v in_o many_o case_n not_o necessary_a to_o explicate_v quality_n for_o since_o in_o earth_n water_n etc._n etc._n such_o diffuse_a quality_n as_o gravity_n sixtness_n colour_n transparency_n and_o fluidity_n must_v be_v acknowledge_v not_o to_o be_v derive_v from_o the_o tria_fw-la prima_fw-la it_o be_v plain_a that_o portion_n of_o matter_n may_v be_v endow_v with_o such_o quality_n by_o other_o cause_n and_o agent_n than_o salt_n sulphur_n and_o mercury_n and_o then_o why_o shall_v we_o deny_v that_o also_o in_o compound_a body_n those_o quality_n may_v be_v sometime_o at_o least_o produce_v by_o the_o same_o or_o the_o like_a cause_n as_o we_o see_v that_o the_o reduction_n of_o a_o diaphanous_a solid_a to_o powder_v produce_v whiteness_n whether_o the_o comminution_n happen_v to_o rock-crystal_n or_o to_o venice-glass_n or_o to_o ice_n the_o first_o of_o which_o be_v acknowledge_v to_o be_v a_o natural_a and_o perfect_o mix_v body_n the_o second_o a_o factitious_a and_o not_o only_o mix_v but_o decompound_v body_n and_o the_o last_o for_o aught_o appear_v a_o elementary_a body_n or_o at_o most_o very_o slight_o and_o imperfect_o mix_v and_o so_o by_o mingle_v air_n in_o small_a portion_n with_o a_o diaphanous_a liquor_n as_o we_o do_v when_o we_o beat_v such_o a_o liquor_n into_o foam_n a_o whiteness_n be_v produce_v as_o well_o in_o pure_a water_n which_o be_v acknowledge_v to_o be_v a_o simple_a body_n as_o in_o white_a wine_n which_o be_v reckon_v among_o perfect_o mix_v body_n chap._n iu._n i_o further_o observe_v that_o the_o chemist_n explication_n do_v not_o reach_v deep_a and_o far_o enough_o for_o first_o most_o of_o they_o be_v not_o sufficient_o distinct_a and_o full_a so_o as_o to_o come_v home_o to_o the_o particular_a phaenomena_n nor_o often_o time_n so_o much_o as_o to_o all_o the_o grand_a one_o that_o belong_v to_o the_o history_n of_o the_o quality_n they_o pretend_v to_o explicate_v you_o will_v ready_o believe_v that_o a_o chemist_n will_v not_o easy_o make_v out_o by_o his_o salt_n sulphur_n and_o mercury_n why_o a_o loadstone_n cap_v with_o steel_n may_v be_v make_v to_o take_v up_o a_o great_a deal_n more_o iron_n sometime_o more_o than_o eight_o or_o ten_o time_n as_o much_o than_o if_o it_o be_v immediate_o apply_v to_o the_o iron_n or_o why_o if_o one_o end_n of_o the_o magnetic_a needle_n be_v dispose_v to_o be_v attract_v by_o the_o north-pole_n for_o instance_n of_o the_o loadstone_n the_o other_o pole_n of_o the_o loadstone_n will_v not_o attract_v it_o but_o drive_v it_o away_o or_o why_o a_o bar_n or_o rod_n of_o iron_n be_v heat_v red-hot_a and_o cool_v perpendicular_o will_v with_o its_o low_a end_n drive_v away_o the_o flower_n de_fw-fr luce_n or_o the_o north-end_n of_o a_o mariner_n needle_n which_o the_o upper_a end_n of_o the_o same_o bar_n or_o rod_n will_v not_o repel_v but_o draw_v to_o it_o in_o short_a of_o above_z threescore_o property_n or_o notable_a phaenomena_n of_o magnetic_a body_n that_o some_o writer_n have_v reckon_v up_o i_o do_v not_o remember_v that_o any_o three_o have_v be_v by_o chemist_n so_o much_o as_o attempt_v to_o be_v solve_v by_o their_o three_o principle_n and_o even_o in_o those_o quality_n in_o who_o explication_n these_o principle_n may_v more_o probable_o than_o elsewhere_o pretend_v to_o have_v a_o place_n the_o spagyrist_n account_n be_v wont_a to_o fall_v so_o short_a of_o be_v distinct_a and_o particular_a enough_o that_o they_o use_v to_o leave_v divers_a considerable_a phaenomena_n untouched_a and_o do_v but_o very_o lame_o or_o slight_o explicate_v the_o more_o obvious_a or_o familiar_a and_o i_o have_v so_o good_a a_o opinion_n of_o divers_a of_o the_o embracer_n of_o the_o spagyrical_a theory_n of_o quality_n among_o who_o i_o have_v meet_v with_o very_o learned_a and_o worthy_a man_n that_o i_o think_v that_o if_o a_o quality_n be_v pose_v to_o they_o they_o be_v at_o the_o same_o time_n present_v with_o a_o good_a catalogue_n of_o the_o phaenomena_n that_o they_o may_v take_v in_o the_o history_n of_o it_o as_o it_o be_v with_o one_o view_n they_o will_v plain_o perceive_v that_o there_o be_v more_o particular_n to_o be_v account_v for_o than_o at_o first_o they_o be_v aware_a of_o and_o divers_a of_o they_o such_o as_o may_v quite_o discourage_v consider_v man_n from_o take_v upon_o they_o to_o explain_v they_o all_o by_o the_o tria_fw-la prima_fw-la and_o oblige_v they_o to_o have_v recourse_n to_o more_o catholic_n and_o comprehensive_a principle_n i_o know_v not_o whether_o i_o may_v not_o add_v on_o this_o occasion_n that_o methinks_v a_o chemist_n who_o by_o the_o help_n of_o his_o tria_fw-la prima_fw-la take_v upon_o he_o to_o interpret_v that_o book_n of_o nature_n of_o which_o the_o quality_n of_o body_n make_v a_o great_a part_n act_n at_o but_o a_o little_a better_a rate_n than_o he_o that_o see_v a_o great_a book_n write_v in_o a_o cypher_n whereof_o he_o be_v acquaint_v but_o with_o three_o letter_n shall_v undertake_v to_o decipher_v the_o whole_a piece_n for_o though_o it_o be_v like_a he_o will_v in_o many_o word_n find_v one_o of_o the_o letter_n of_o his_o short_a key_n and_o in_o divers_a word_n two_o of_o they_o and_o perhaps_o in_o some_o all_o three_o yet_o beside_o that_o in_o most_o of_o the_o word_n wherein_o the_o know_a letter_n or_o letter_n may_v be_v meet_v with_o they_o may_v be_v so_o blend_v with_o other_o unknown_a letter_n as_o to_o keep_v he_o from_o decipher_v a_o good_a part_n of_o those_o very_a word_n it_o be_v more_o than_o probable_a that_o a_o great_a part_n of_o the_o book_n will_v consist_v of_o word_n wherein_o none_o of_o his_o three_o letter_n be_v to_o be_v find_v chap._n v._n and_o this_o be_v the_o first_o account_n on_o which_o i_o observe_v that_o the_o chemical_a theory_n of_o quality_n do_v not_o reach_v far_o enough_o but_o there_o be_v another_o branch_n of_o its_o deficiency_n for_o even_o when_o the_o explication_n seem_v to_o come_v home_o to_o the_o phaenomena_n they_o be_v not_o primary_n and_o if_o i_o may_v so_o speak_v fontal_n enough_o to_o make_v this_o appear_v i_o shall_v at_o present_a employ_v but_o these_o two_o consideration_n the_o first_o be_v that_o those_o substance_n themselves_o that_o chemist_n call_v their_o principle_n be_v each_o of_o they_o endow_v with_o several_a quality_n thus_o salt_n be_v a_o consistent_a not_o a_o fluid_a body_n it_o have_v its_o weight_n it_o be_v dissoluble_a in_o water_n be_v either_o diaphanous_a or_o opacous_a fix_v or_o volatile_a sapid_a or_o insipid_a i_o speak_v thus_o disjunctive_o because_o chemist_n be_v not_o all_o agree_v about_o these_o thing_n and_o it_o concern_v not_o my_o argument_n which_o of_o the_o disputable_a quality_n be_v resolve_v upon_o and_o sulphur_n according_a to_o they_o be_v a_o body_n fusible_a inflammable_a etc._n etc._n and_o according_a to_o experience_n be_v consistent_a heavy_a etc._n etc._n so_o that_o it_o be_v by_o the_o help_n of_o more_o primary_n and_o general_a principle_n that_o we_o must_v explicate_v some_o of_o those_o quality_n which_o be_v find_v in_o body_n suppose_v to_o be_v perfect_o similar_v or_o homogeneous_a can_v be_v pretend_v to_o be_v derive_v in_o one_o of_o they_o from_o the_o other_o and_o to_o say_v that_o it_o be_v the_o nature_n of_o a_o principle_n to_o have_v this_o or_o that_o quality_n as_o for_o instance_n of_o sulphur_n to_o be_v fusible_a and_o therefore_o we_o be_v not_o to_o exact_v a_o reason_n why_o it_o be_v so_o
work_n by_o local_a motion_n and_o when_o by_o strike_v a_o lump_n of_o glass_n it_o break_v it_o into_o a_o multitude_n of_o small_a part_n that_o compose_v a_o white_a powder_n it_o act_n as_o mechanical_o in_o the_o production_n of_o that_o whiteness_n as_o it_o do_v in_o drive_v in_o a_o nail_n to_o the_o head_n and_o so_o likewise_o when_o the_o powder_a glass_n or_o colophony_n late_o mention_v be_v by_o the_o fire_n from_o a_o white_a and_o opacous_a body_n reduce_v into_o a_o colourless_a or_o a_o red_a and_o transparent_a one_o it_o appear_v not_o that_o the_o fire_n though_o a_o natural_a agent_n need_v work_n otherwise_o than_o machanical_o by_o colliquate_v the_o incoherent_a grain_n of_o powder_n into_o one_o mass_n wherein_o the_o rank_n of_o pore_n not_o be_v break_a and_o interrupt_v as_o before_o the_o incident_a beam_n of_o light_n be_v allow_v every_o way_n a_o free_a passage_n through_o they_o five_o the_o like_a phaenomena_n to_o those_o of_o a_o quality_n to_o be_v explicate_v or_o at_o least_o as_o difficult_a in_o the_o same_o kind_n may_v be_v produce_v in_o body_n and_o case_n wherein_o it_o be_v plain_a we_o need_v not_o recurre_v to_o substantial_a form_n thus_o a_o vary_a colour_n life_n that_o which_o be_v admire_v in_o a_o pigeon_n neck_n may_v be_v produce_v in_o changeable_a taffeta_n by_o a_o particular_a way_n of_o range_v and_o connect_v silk_n of_o several_a colour_n into_o one_o piece_n of_o stuff_n thus_o we_o have_v know_v opal_n casual_o imitate_v and_o almost_o excel_v by_o glass_n which_o lucky_o degenerate_v in_o the_o furnace_n and_o somewhat_o the_o life_n changeable_a and_o very_a delightful_a colour_n i_o remember_v to_o have_v introduce_v into_o common_a glass_n with_o silver_n or_o with_o gold_n and_o mercury_n so_o likewise_o mere_o by_o blow_v fine_a crystal-glass_n at_o the_o flame_n of_o a_o lamp_n to_o a_o very_a extraordinary_a thinness_n we_o have_v make_v it_o to_o exhibit_v and_o that_o vivid_o all_o the_o colour_n as_o they_o speak_v of_o the_o rainbow_n and_o this_o power_n of_o please_v by_o diverfiyy_v the_o light_n the_o glass_n if_o well_o preserve_v may_v keep_v for_o a_o long_a time_n thus_o also_o by_o bare_o beat_v gold_n into_o such_o thin_a leaf_n as_o artificer_n and_o apothecary_n be_v wont_a to_o employ_v it_o will_v be_v bring_v to_o exhibit_v a_o green_a colour_n when_o you_o hold_v it_o against_o the_o light_n whether_o of_o the_o day_n or_o of_o a_o good_a candle_n and_o this_o kind_n of_o greenness_n as_o it_o be_v permanent_a in_o the_o foliate_v gold_n so_o i_o have_v find_v by_o trial_n that_o if_o the_o sunbeam_n somewhat_o unite_v by_o a_o burning-glass_n be_v traject_v through_o the_o expanded_a leaf_n and_o cast_v upon_o a_o piece_n of_o white_a paper_n they_o will_v appear_v there_o as_o if_o they_o have_v be_v tinge_v in_o their_o passage_n nay_o and_o sometime_o a_o slight_a and_o almost_o momentany_a mechanical_a change_n will_v seem_v to_o over_o rule_n nature_n and_o introduce_v into_o a_o body_n the_o quite_o opposite_a quality_n to_o that_o she_o have_v give_v it_o as_o when_o a_o piece_n of_o black_a horn_n be_v only_o by_o be_v thin_o scrape_v with_o the_o edge_n of_o a_o knife_n or_o a_o piece_n of_o glass_n reduce_v to_o permanent_o white_n shave_n and_o to_o these_o instance_n of_o colour_n some_o emphatical_a and_o some_o permanent_a may_v be_v add_v divers_a belong_v to_o other_o quality_n but_o that_o i_o ought_v not_o to_o anticipate_v what_o you_o will_v elsewhere_o meet_v with_o there_o be_v yet_o another_o way_n of_o argue_v in_o favour_n of_o the_o corpuscularian_a doctrine_n of_o quality_n which_o though_o it_o do_v not_o afford_v direct_a proof_n of_o its_o be_v the_o best_a hypothesis_n yet_o it_o may_v much_o strengthen_v the_o argument_n draw_v from_o other_o topic_n and_o thereby_o serve_v to_o recommend_v the_o doctrine_n itself_o for_o the_o use_n of_o a_o hypothesis_n be_v to_o render_v a_o intelligible_a account_n of_o the_o cause_n of_o the_o effect_n or_o phaenomena_n propose_v without_o cross_v the_o law_n of_o nature_n or_o other_o phaenomena_n the_o more_o numerous_a and_o the_o more_o various_a the_o particular_n be_v whereof_o some_o be_v explicable_a by_o the_o assign_v hypothesis_n and_o some_o be_v agreeable_a to_o it_o or_o at_o least_o be_v not_o dissonant_n from_o it_o the_o more_o valuable_a be_v the_o hypothesis_n and_o the_o more_o likely_a to_o be_v true_a for_o it_o be_v much_o more_o difficult_a to_o find_v a_o hypothesis_n that_o be_v not_o true_a which_o will_v suit_v with_o many_o phaenomena_n especial_o if_o they_o be_v of_o various_a kind_n than_o but_o with_o few_o and_o for_o this_o reason_n i_o have_v set_v down_o among_o the_o instance_n belong_v to_o particular_a quality_n some_o such_o experiment_n and_o observation_n as_o we_o be_v now_o speak_v of_o since_o although_o they_o be_v not_o direct_a proof_n of_o the_o preferrablennss_n of_o our_o doctrine_n yet_o they_o may_v serve_v for_o confirmation_n of_o it_o though_o this_o be_v not_o the_o only_a or_o perhaps_o the_o chief_a reason_n of_o their_o be_v mention_v for_o whatever_o they_o may_v be_v as_o argument_n since_o they_o be_v matter_n of_o fact_n i_o think_v it_o not_o amiss_o to_o take_v this_o occasion_n of_o preserve_v they_o from_o be_v lose_v since_o whither_o or_o no_o they_o contribute_v much_o to_o the_o establishment_n of_o the_o mechanical_a doctrine_n about_o quality_n they_o will_v at_o least_o contribute_v to_o the_o natural_a history_n of_o they_o iii_o i_o shall_v not_o trouble_v the_o reader_n with_o a_o recital_n of_o those_o unlucky_a accident_n that_o have_v hinder_v the_o subject_n of_o the_o follow_a book_n from_o be_v more_o numerous_a and_o i_o hope_v he_o will_v the_o more_o easy_o excuse_v their_o paucity_n if_o he_o be_v advertise_v that_o although_o the_o particular_a quality_n about_o which_o some_o experiment_n and_o note_n by_o way_n of_o specimens_n be_v here_o present_v be_v not_o near_o half_a so_o many_o as_o be_v intend_v to_o be_v treat_v of_o yet_o i_o be_v careful_a to_o choose_v they_o such_o as_o may_v comprehend_v in_o a_o small_a number_n a_o great_a variety_n there_o be_v scarce_o one_o sort_n of_o quality_n of_o which_o there_o be_v not_o a_o instance_n give_v in_o this_o small_a book_n since_o therein_o experiment_n and_o thought_n be_v deliver_v about_o heat_n and_o cold_a which_o be_v the_o chief_a of_o the_o four_o first_o quality_n about_o taste_n and_o odour_n which_o be_v of_o those_o that_o be_v the_o immediate_a object_n of_o sense_n be_v wont_a to_o be_v call_v sensible_a quality_n about_o volatility_n and_o fixity_n corrosiveness_n and_o corrosibility_n which_o as_o they_o be_v find_v in_o body_n pure_o natural_a be_v referrable_a to_o those_o quality_n that_o many_o physical_a writer_n call_v second_o quality_n and_o which_o yet_o as_o they_o may_v be_v produce_v and_o destroy_v by_o the_o chemist_n art_n may_v be_v style_v chemical_a quality_n and_o the_o spagyrical_a way_n of_o introduce_v or_o expel_v they_o may_v be_v refer_v to_o chemical_a operation_n of_o which_o there_o be_v give_v a_o more_o ample_a specimen_fw-la in_o the_o mechanical_a account_n of_o chemical_a precipitation_n and_o last_o some_o note_n be_v add_v about_o magnetism_n and_o electricity_n which_o be_v know_v to_o belong_v to_o the_o tribe_n of_o occult_a quality_n iv._o if_o a_o want_n of_o apt_a coherence_n and_o exact_a method_n be_v discover_v in_o the_o follow_a essay_n it_o be_v hope_v that_o defect_n will_v be_v easy_o excuse_v by_o those_o that_o remember_v and_o consider_v that_o these_o paper_n be_v original_o little_a better_a than_o a_o kind_n of_o rhapsody_n of_o experiment_n thaught_n and_o observation_n occasional_o throw_v together_o by_o way_n of_o annotation_n upon_o some_o passage_n of_o a_o discourse_n about_o the_o differ_a part_n and_o redintegration_n of_o nitre_n wherein_o some_o thing_n be_v point_v at_o relate_v to_o the_o particular_a quality_n that_o be_v here_o more_o large_o treat_v of_o and_o though_o the_o particular_n that_o concern_v some_o of_o these_o quality_n be_v afterward_o to_o supply_v the_o place_n of_o those_o borrow_a by_o other_o paper_n whilst_o these_o lay_v by_o i_o increase_v in_o number_n yet_o it_o be_v not_o to_o be_v expect_v that_o their_o accession_n shall_v as_o well_o correct_v the_o form_n as_o augment_v the_o matter_n of_o our_o annotation_n and_o as_o for_o the_o two_o tract_n that_o be_v insert_v among_o these_o essay_n about_o quality_n i_o mean_v the_o discourse_n of_o the_o imperfection_n of_o the_o chemical_a doctrine_n of_o they_o and_o the_o reflection_n on_o the_o hypothesis_n of_o acidum_fw-la and_o alcali_n the_o occasion_n of_o their_o be_v make_v part_n of_o this_o book_n be_v so_o far_o express_v in_o the_o tract_n
themselves_o that_o i_o need_v not_o here_o trouble_v the_o reader_n with_o a_o particular_a account_n of_o it_o v._o i_o do_v not_o undertake_v that_o all_o the_o follow_a account_n of_o particular_a quality_n will_v prove_v to_o be_v the_o very_a true_a one_o nor_o every_o explication_n the_o best_a that_o can_v be_v devise_v for_o beside_o that_o the_o difficulty_n of_o the_o subject_a and_o incompleatness_n of_o the_o history_n we_o yet_o have_v of_o quality_n may_v well_o deter_v a_o man_n less_o diffident_a of_o his_o own_o ability_n than_o i_o just_o be_o from_o assume_v so_o much_o to_o himself_o it_o be_v not_o absolute_o necessary_a to_o my_o present_a design_n for_o mechanical_a explication_n of_o natural_a phaenomena_n do_v give_v so_o much_o more_o satisfaction_n to_o ingenious_a mind_n than_o those_o that_o must_v employ_v substantial_a form_n sympathy_n antipathy_n etc._n etc._n that_o the_o more_o judicious_a of_o the_o vulgar_a philosopher_n themselves_o prefer_v they_o before_o all_o other_o when_o they_o can_v be_v have_v as_o be_v elsewhere_o show_v at_o large_a but_o than_o they_o look_v upon_o they_o either_o as_o confine_v to_o mechanical_a engine_n or_o at_o least_o but_o as_o reach_v to_o very_a few_o of_o nature_n phaenomena_n and_o for_o that_o reason_n unfit_a to_o be_v receive_v as_o physical_a principle_n to_o remove_v therefore_o this_o grand_a prejudice_n and_o objection_n which_o seem_v to_o be_v the_o chief_a thing_n that_o have_v keep_v off_o rational_a inquirer_n from_o close_v with_o the_o mechanical_a philosophy_n it_o may_v be_v very_o conducive_a if_o not_o sufficient_a to_o propose_v such_o mechanical_a account_n of_o particular_a quality_n themselves_o as_o be_v intelligible_a and_o possible_a and_o be_v agreeable_a to_o the_o phaenomena_n whereto_o they_o be_v apply_v and_o to_o this_o it_o be_v no_o more_o necessary_a that_o the_o account_v propose_v shall_v be_v the_o true_a and_o best_a that_o can_v possible_o be_v give_v than_o it_o be_v to_o the_o prove_v that_o a_o clock_n be_v not_o act_v by_o a_o vital_a principle_n as_o those_o chineses_n think_v who_o take_v the_o first_o that_o be_v bring_v they_o out_o of_o europe_n for_o a_o animal_n but_o act_n as_o a_o engine_n to_o do_v more_o than_o assign_v a_o mechanical_a structure_n make_v up_o of_o wheel_n a_o spring_n a_o hammer_n and_o other_o mechanical_a piece_n that_o will_v regular_o show_v and_o strike_v the_o hour_n whether_o this_o contrivance_n be_v or_o be_v not_o the_o very_a same_o with_o that_o of_o the_o particular_a clock_n propose_v which_o may_v indeed_o be_v make_v to_o move_v either_o with_o spring_n or_o weight_n and_o may_v consist_v of_o a_o great_a or_o lesser_a number_n of_o wheel_n and_o those_o differ_o situate_v and_o connect_v but_o for_o all_o this_o variety_n it_o will_v still_o be_v but_o a_o engine_n i_o intend_v not_o therefore_o by_o propose_v the_o theory_n and_o conjecture_n venture_v at_o in_o the_o follow_a paper_n to_o debar_v myself_o of_o the_o liberty_n either_o of_o alter_v they_o or_o of_o substitute_v other_o in_o their_o place_n in_o case_n a_o further_a progress_n in_o the_o history_n of_o quality_n shall_v suggest_v better_a hypothesis_n or_o explication_n and_o it_o be_v but_o agreeable_a to_o this_o intention_n of_o i_o that_o i_o shall_v as_o i_o have_v do_v on_o divers_a occasion_n in_o the_o follow_a note_n employ_v the_o word_n or_o and_o express_v myself_o somewhat_o doubt_o mention_v more_o than_o one_o cause_n of_o a_o phaenomenon_n or_o reason_n of_o a_o opinion_n without_o dogmatical_o declare_v for_o either_o since_o my_o purpose_n in_o these_o note_n be_v rather_o to_o show_v it_o be_v not_o necessary_a to_o betake_v ourselves_o to_o the_o scholastic_a or_o chemical_a doctrine_n about_o quality_n than_o to_o act_v the_o umpire_n between_o the_o differ_a hypothesis_n of_o the_o corpuscularian_o and_o provide_v i_o keep_v myself_o within_o the_o bound_n of_o mechanical_a philosophy_n my_o design_n allow_v i_o a_o great_a latitude_n in_o make_v explication_n of_o the_o phaenomena_n i_o have_v occasion_n to_o take_v notice_n of_o finis_fw-la direction_n for_o the_o book-binder_n to_o be_v put_v immediate_o after_o the_o general_a title_n page_n the_o several_a tract_n of_o this_o book_n be_v to_o be_v bind_v in_o the_o order_n follow_v viz._n after_o the_o preface_n of_o the_o publisher_n to_o the_o reader_n and_o the_o advertisement_n relate_v to_o the_o whole_a treatise_n be_v to_o follow_v 1._o the_o tract_n of_o heat_n and_o cold._n 2._o of_o taste_n 3._o of_o odour_n 4._o of_o the_o imperfection_n of_o the_o chemist_n doctrine_n of_o quality_n 5._o reflection_n upon_o the_o hypothesis_n of_o alcali_n and_o acidum_fw-la 6._o advertisement_n relate_v to_o chemical_a quality_n to_o be_v bind_v next_o after_o the_o title_n page_n to_o volatility_n 7._o of_o volatility_n 8._o of_o fixtness_n 9_o of_o corrosiveness_n &_o corrosibility_n 10._o of_o chemical_a precipitation_n 11._o of_o magnetism_n 12._o of_o electricity_n errata_fw-la in_o the_o tract_n of_o heat_n and_o cold_a p._n 28._o at_o the_o end_n of_o the_o page_n deal_n finis_fw-la and_o go_v on_o to_o exp._n ix_o p._n 40._o l._n 21._o r._n degree_n of_o rapidness_n p._n 102._o l._n 15._o put_v a_o comma_n after_o the_o word_n before_o in_o the_o tract_n of_o corrosiveness_n and_o corrosibility_n read_v in_o the_o current_a title_n on_o the_o top_n of_o p._n 2._o and_o 3._o &_o seqq_n corrosiveness_n and_o corrosibility_n not_o or_o of_o the_o mechanical_a origine_fw-la of_o heat_n and_o cold_a by_o the_o honourable_a robert_n boyle_n esq_n fellow_n of_o the_o r._n society_n london_n print_v by_o e._n flesher_n for_o r._n davis_n bookseller_n in_o oxford_n 1675._o experiment_n and_o note_n about_o the_o mechanical_a origine_fw-la or_o production_n of_o heat_n and_o cold_a sect_n i._o about_o the_o mechanical_a production_n of_o cold._n heatt_z &_o cold_a be_v general_o look_v upon_o as_o the_o most_o active_a among_o quality_n from_o which_o many_o other_o quality_n be_v deducible_a and_o by_o which_o many_o of_o nature_n phaenomena_n especial_o among_o the_o peripatetic_n be_v attempt_v to_o be_v explicate_v i_o suppose_v it_o will_v be_v very_o proper_a to_o begin_v with_o instance_n of_o they_o to_o show_v that_o quality_n may_v be_v mechanical_o produce_v or_o destroy_v a_o not_o useless_a paraphrase_n of_o which_o expression_n may_v be_v this_o that_o a_o portion_n of_o matter_n may_v come_v to_o be_v endow_v with_o a_o quality_n which_o it_o have_v not_o before_o or_o to_o be_v deprive_v of_o one_o that_o it_o have_v or_o sometime_o to_o acquire_v or_o lose_v a_o degree_n of_o that_o quality_n though_o on_o the_o part_n of_o the_o matter_n or_o as_o some_o will_v speak_v of_o the_o patient_n there_o do_v not_o appear_v to_o intervene_v any_o more_o than_o a_o change_n of_o texture_n or_o some_o other_o mechanical_a alteration_n and_o though_o the_o agent_n on_o their_o part_n do_v not_o appear_v to_o act_v upon_o it_o otherwise_o than_o after_o a_o mechanical_a manner_n that_o be_v by_o their_o bigness_n shape_n motion_n and_o those_o other_o attribute_n by_o virtue_n whereof_o mechanical_a power_n and_o engine_n perform_v their_o operation_n and_o this_o without_o have_v recourse_n to_o the_o peripatetic_a substantial_a form_n and_o element_n or_o to_o the_o hypostatical_a principle_n of_o the_o chemist_n and_o have_v here_o as_o in_o a_o proper_a place_n to_o avoid_v ambiguity_n premise_v once_o for_o all_o this_o preamble_n summary_n declaration_n of_o the_o sense_n agreeable_o whereunto_o i_o will_v have_v these_o term_n understand_v in_o the_o follow_a note_n about_o the_o origine_fw-la of_o particular_a quality_n i_o proceed_v now_o to_o set_v down_o some_o few_o example_n of_o the_o mechanical_a production_n of_o cold_a &_o heat_n begin_v with_o those_o that_o relate_v to_o the_o former_a because_o by_o reason_n of_o their_o paucity_n they_o will_v be_v quick_o dispatch_v and_o i_o hope_v i_o shall_v not_o need_v to_o make_v a_o apology_n for_o mention_v no_o great_a number_n since_o i_o scarce_o remember_v to_o have_v meet_v with_o any_o instance_n of_o this_o kind_n in_o any_o of_o the_o classic_a writer_n of_o natural_a philosophy_n exper._n i._n my_o first_o experiment_n be_v afford_v i_o by_o the_o dissolution_n of_o sal_fw-la ammoniac_a which_o i_o have_v somewhat_o wonder_v that_o chemist_n have_v often_o occasion_n to_o purify_v that_o salt_n by_o the_o help_n of_o water_n shall_v not_o have_v long_v since_o and_o public_o take_v notice_n of_o for_o if_o you_o put_v into_o three_o or_o four_o time_n its_o weight_n of_o water_n a_o pound_n or_o but_o half_a a_o pound_n or_o even_o less_o of_o powder_a sal_fw-la ammoniac_a and_o stir_v it_o about_o to_o hasten_v the_o dissolution_n there_o will_v be_v produce_v in_o the_o mixture_n a_o very_a intense_a degree_n of_o coldness_n such_o
sulphur_n as_o such_o do_v or_o do_v not_o make_v up_o the_o subject-matter_n of_o the_o change_n and_o now_o i_o shall_v conclude_v and_o partly_o recapitulate_v what_o have_v be_v deliver_v in_o this_o and_o the_o two_o forego_v chapter_n with_o this_o summary_n consideration_n that_o the_o chymist_n salt_n sulphur_n and_o mercury_n themselves_o be_v not_o the_o first_o and_o most_o simple_a principle_n of_o body_n but_o rather_o primary_n concretion_n of_o corpuscle_n or_o particle_n more_o simple_a than_o they_o as_o be_v endow_v only_o with_o the_o first_o or_o most_o radical_a if_o i_o may_v so_o speak_v and_o most_o catholic_n affection_n of_o simple_a body_n namely_o bulk_n shape_n and_o motion_n or_o rest_v by_o the_o different_a convention_n or_o coalition_n of_o which_o minute_a portion_n of_o matter_n be_v make_v those_o differ_a concretion_n that_o chemist_n name_n salt_n sulphur_n and_o mercury_n and_o to_o this_o doctrine_n it_o will_v be_v consonant_n that_o several_a effect_n of_o this_o or_o that_o spagyrical_a principle_n need_v not_o be_v derive_v from_o salt_n for_o instance_n or_o sulphur_n as_o such_o but_o may_v be_v explain_v by_o the_o help_n of_o some_o of_o those_o corpuscle_n that_o i_o have_v late_o call_v more_o simple_a and_o radical_a and_o such_o explication_n be_v more_o simple_a and_o mechanical_a may_v be_v think_v upon_o that_o score_n more_o fundamental_a and_o satisfactory_a chap._n viii_o i_o know_v it_o may_v be_v object_v in_o favour_n of_o the_o chemist_n that_o as_o their_o hypostatical_a principle_n salt_n sulphur_n and_o mercury_n be_v but_o three_o so_o the_o corpuscularian_a principle_n be_v but_o very_o few_o and_o the_o chief_a of_o they_o bulk_n size_n and_o motion_n be_v but_o three_o neither_o so_o that_o it_o appear_v not_o why_o the_o chemical_a principle_n shall_v be_v more_o barren_a than_o the_o mechanical_a to_o which_o allegation_n i_o answer_v that_o beside_o that_o these_o last_o name_v principle_n be_v more_o numerous_a as_o take_v in_o the_o posture_n order_n and_o situation_n the_o rest_n and_o above_o all_o the_o almost_o infinite_o diversifiable_a contexture_n of_o the_o small_a part_n and_o the_o thence_o result_a structure_n of_o particular_a body_n and_o fabric_n of_o the_o world_n beside_o this_o i_o say_v each_o of_o the_o three_o mechanical_a principle_n specify_v in_o the_o objection_n though_o but_o one_o in_o name_n be_v equivalent_a to_o many_o in_o effect_n as_o figure_n for_o instance_n comprehend_v not_o only_a triangle_n square_n rhombuss_n rhomboid_v trapezion_n and_o a_o multitude_n of_o polygon_n whether_o ordinate_a or_o irregular_a but_o beside_o cube_n prisme_n cones_n sphere_n cylinder_n pyramid_n and_o other_o solid_n of_o know_a denomination_n a_o scarce_o numerable_a multitude_n of_o hook_a branch_a eel-like_a screw-like_a and_o other_o irregular_a body_n whereof_o though_o these_o and_o some_o other_o have_v distinct_a appellation_n yet_o the_o great_a part_n be_v nameless_a so_o that_o it_o need_v be_v no_o wonder_n that_o i_o shall_v make_v the_o mechanical_a principle_n so_o much_o more_o fertile_a that_o be_v applicable_a to_o the_o production_n and_o explication_n of_o a_o far_o great_a number_n of_o phaenomena_n than_o the_o chemical_a which_o while_o they_o be_v consider_v but_o as_o similar_v body_n that_o be_v ingredient_n of_o mix_a and_o compound_v one_o be_v chief_o variable_a but_o by_o the_o great_a or_o lesser_a quantity_n that_o be_v employ_v by_o nature_n or_o art_n to_o make_v up_o the_o mix_a body_n and_o painter_n observe_v that_o black_a and_o white_a though_o mix_v in_o differ_v proportion_n will_v still_o make_v but_o light_a and_o dark_a gray_n and_o if_o it_o be_v say_v that_o these_o ingredient_n by_o the_o texture_n result_v from_o their_o mixture_n may_v acquire_v quality_n that_o neither_o of_o they_o have_v before_o i_o shall_v answer_v that_o to_o allege_v this_o be_v in_o effect_n to_o confess_v that_o they_o must_v take_v in_o the_o mechanical_a principle_n for_o to_o they_o belong_v the_o texture_n or_o structure_n of_o body_n to_o assist_v the_o chemical_a one_o and_o on_o this_o occasion_n to_o borrow_v a_o illustration_n from_o our_o unpublished_a dialogue_n of_o the_o requisite_n of_o a_o good_a hypothesis_n i_o shall_v add_v that_o a_o chemist_n that_o shall_v pretend_v that_o because_o his_o three_o principle_n be_v as_o many_o as_o those_o of_o the_o corpuscularian_o they_o be_v as_o sufficient_a as_o these_o to_o give_v a_o account_n of_o the_o book_n of_o nature_n methinks_v i_o say_v he_o will_v do_v like_o a_o man_n that_o shall_v pretend_v that_o with_o four_o and_o twenty_o word_n he_o will_v make_v up_o a_o language_n as_o well_o as_o other_o can_n with_o the_o four_o and_o twenty_o letter_n of_o the_o alphabet_n because_o he_o have_v as_o many_o word_n already_o form_v as_o they_o have_v of_o bare_a letter_n not_o consider_v that_o instead_o of_o the_o small_a number_n of_o variation_n that_o can_v be_v make_v of_o his_o word_n by_o preposition_n and_o termination_n the_o letter_n of_o the_o alphabet_n be_v various_o combine_v place_v and_o reiterated_a can_v be_v easy_o make_v to_o compose_v not_o only_o his_o four_o and_o twenty_o word_n with_o their_o variation_n but_o as_o many_o other_o as_o a_o whole_a language_n contain_v chap._n ix_o notwithstanding_o all_o that_o i_o have_v be_v oblige_v to_o say_v to_o the_o disadvantage_n of_o the_o chemical_a principle_n in_o reference_n to_o the_o explication_n of_o quality_n i_o will_v not_o be_v think_v to_o grant_v that_o the_o peripatetic_n have_v reason_n to_o triumph_v as_o if_o their_o four_o element_n afford_v a_o better_a theory_n of_o quality_n for_o if_o i_o have_v together_o with_o leisure_n enough_o to_o perform_v such_o a_o task_n any_o obligation_n to_o undertake_v it_o i_o presume_v it_o will_v not_o be_v difficult_a to_o show_v that_o the_o aristotelian_a doctrine_n about_o particular_a quality_n be_v liable_a to_o some_o of_o the_o same_o objection_n with_o the_o chemical_a and_o to_o some_o other_o no_o less_o considerable_a and_o that_o to_o derive_v all_o the_o phaenomena_n their_o doctrine_n ought_v to_o solve_v from_o substantial_a form_n and_o real_a quality_n elementary_a be_v to_o impose_v on_o we_o a_o theory_n more_o barren_a and_o precarious_a than_o that_o of_o the_o spagyrist_n that_o to_o derive_v the_o particular_a quality_n of_o body_n from_o those_o substantial_a form_n whence_o the_o school_n will_v have_v they_o to_o flow_v be_v but_o a_o insufficient_a and_o unfit_a way_n of_o account_v for_o they_o may_v appear_v by_o this_o that_o substantial_a form_n themselves_o be_v thing_n who_o existence_n many_o learned_a philosopher_n deny_v who_o theory_n many_o of_o they_o think_v incomprehensible_a and_o the_o most_o candid_a and_o judicious_a of_o the_o peripatetic_n themselves_o confess_v it_o to_o be_v very_o abstruse_a so_o that_o from_o such_o doubtful_a and_o obscure_a principle_n we_o can_v hardly_o expect_v clear_a explication_n of_o the_o nature_n and_o phaenomena_n of_o quality_n not_o to_o urge_v that_o the_o aristotelian_a definition_n both_o of_o quality_n in_o general_a and_o of_o divers_a of_o the_o more_o familiar_a quality_n in_o particular_a as_o heat_n cold_a moisture_n diaphaneity_n etc._n etc._n be_v far_o enough_o from_o be_v clear_a and_o well_o frame_v as_o we_o elsewhere_o have_v occasion_n to_o show_v another_o thing_n which_o make_v the_o scholastic_a doctrine_n of_o quality_n unsatisfactory_a be_v that_o it_o seldom_o so_o much_o as_o attempt_n to_o teach_v the_o manner_n how_o the_o quality_n themselves_o and_o their_o effect_n or_o operation_n be_v produce_v of_o this_o you_o may_v elsewhere_o find_v a_o instance_n give_v in_o the_o quality_n that_o be_v wont_a to_o be_v first_o in_o the_o list_n viz_o that_o of_o heat_n which_o though_o it_o may_v intelligible_o and_o probable_o be_v explicate_v by_o the_o corpuscular_a hypothesis_n yet_o in_o the_o peripatetic_a account_n that_o be_v give_v of_o it_o be_v both_o too_o questionable_a and_o too_o superficial_a to_o give_v much_o content_a to_o a_o rational_a inquirer_n and_o indeed_o to_o say_v that_o a_o substantial_a form_n as_o that_o of_o the_o fire_n act_v by_o a_o quality_n call_v heat_n who_o nature_n it_o be_v to_o produce_v such_o a_o effect_n as_o to_o soften_v wax_n or_o harden_v clay_n seem_v to_o be_v no_o other_o in_o substance_n than_o to_o say_v that_o it_o produce_v such_o a_o effect_n by_o some_o power_n it_o have_v to_o produce_v it_o but_o what_o that_o power_n be_v and_o how_o it_o operate_v be_v that_o which_o though_o we_o most_o desire_v to_o know_v we_o be_v leave_v to_o seek_v but_o to_o prosecute_v the_o imperfection_n of_o the_o peripatetic_a hypothesis_n be_v to_o entrench_v upon_o another_o discourse_n where_o they_o be_v more_o full_o lay_v open_a and_o therefore_o i_o shall_v now_o but_o light_o glance_v upon_o a_o