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instanced_a in_o the_o whiteness_n of_o froth_n and_o in_o the_o mixture_n of_o dry_a colour_a powder_n 30._o a_o further_a explication_n of_o the_o variety_n that_o may_v be_v in_o the_o superficial_a part_n of_o colour_a body_n that_o may_v cause_v that_o effect_n by_o a_o example_n draw_v from_o the_o surface_n of_o the_o earth_n 31._o a_o apology_n for_o that_o gross_a comparison_n 32._o that_o the_o appearance_n of_o the_o superficial_a asperity_n may_v be_v vary_v from_o the_o position_n of_o the_o eye_n and_o several_a instance_n give_v of_o such_o appearance_n 33_o 34_o 35._o that_o the_o appearance_n of_o the_o superficial_a particle_n may_v be_v vary_v also_o by_o their_o motion_n confirm_v by_o a_o instance_n of_o the_o smoke_a liquor_n 35._o especial_o if_o the_o superficial_a part_n be_v of_o such_o a_o nature_n as_o to_o appear_v divers_a in_o several_a posture_n explain_v by_o the_o variety_n of_o colour_n exhibit_v by_o the_o shake_a leave_n of_o some_o plant_n 36._o and_o by_o changeable_a taffity_n 37_o 38_o 39_o the_o author_n wish_v that_o the_o variety_n of_o colour_n in_o mother_n of_o pearl_n be_v examine_v with_o a_o microscope_n 40._o and_o his_o conjecture_n that_o possible_o good_a microscope_n may_v discover_v those_o superficial_a inequality_n to_o be_v real_a which_o we_o now_o only_o imagine_v with_o his_o reason_n draw_v partly_o from_o the_o discovery_n of_o the_o telescope_n and_o microscope_n 41._o and_o partly_o also_o from_o the_o prodigious_o strange_a example_n of_o a_o blind_a man_n that_o can_v feel_v colour_n 42._o who_o history_n be_v relate_v 43_o 44_o 45._o the_o author_n conjecture_n and_o thought_n of_o it_o 46_o 47_o 48_o 49._o and_o several_a conclusion_n and_o corollary_n draw_v from_o it_o about_o the_o nature_n of_o blackness_n and_o black_a body_n 50_o 51_o 52._o and_o about_o the_o asperity_n of_o several_a other_o colour_a body_n 53._o and_o from_o these_o and_o some_o premised_a consideration_n be_v propose_v some_o conjecture_n that_o the_o reason_n of_o the_o several_a phaenomena_n of_o colour_n afterward_o to_o be_v meet_v with_o depend_v upon_o the_o disposition_n of_o the_o see_v part_n of_o the_o object_n 54._o that_o liquor_n may_v alter_v the_o colour_n of_o each_o other_o and_o of_o other_o body_n first_o by_o their_o insinuate_a themselves_o into_o the_o pore_n and_o fill_v they_o whence_o the_o asperity_n of_o the_o surface_n of_o a_o body_n become_v alter_v explicate_v with_o some_o instance_n 55_o 56._o next_o by_o remove_v those_o body_n which_o before_o hinder_v the_o appearance_n of_o the_o genuine_a colour_n confirm_v by_o several_a example_n 57_o three_o by_o make_v a_o fissure_n or_o separation_n either_o in_o the_o contiguous_a or_o continue_a particle_n of_o a_o body_n 58._o four_o by_o a_o union_n or_o conjunction_n of_o the_o former_o separate_a particle_n illustrate_v with_o divers_a instance_n of_o precipitate_v body_n 59_o five_o by_o dislocate_a the_o part_n and_o put_v they_o both_o into_o other_o order_n and_o posture_n which_o be_v illustrate_v with_o instance_n 60_o 61._o six_o by_o motion_n which_o be_v explain_v 62._o and_o last_o and_o chief_o by_o the_o union_n of_o the_o saline_n body_n with_o the_o superficial_a part_n of_o another_o body_n whereby_o both_o their_o bigness_n and_o shape_n must_v necessary_o be_v alter_v 63_o 64._o explain_v by_o experiment_n 65_o 66._o that_o the_o colour_n of_o body_n may_v be_v change_v by_o the_o concurrence_n of_o two_o or_o more_o of_o these_o way_n 67._o and_o beside_o all_o these_o eight_o reflective_a cause_n of_o colour_n there_o may_v be_v in_o transparent_a body_n several_a refractive_a 68_o 69._o why_o the_o author_n think_v the_o nature_n of_o colour_n deserve_v yet_o a_o further_a inquiry_n 69._o first_o for_o that_o the_o little_a mote_n of_o dust_n exhibit_v very_o lovely_a colour_n in_o a_o darken_a room_n whilst_o in_o a_o convenient_a posture_n to_o the_o eye_n which_o in_o other_o posture_n and_o light_n they_o do_v not_o 70._o and_o that_o though_o the_o small_a part_n of_o some_o colour_a body_n be_v transparent_a yet_o of_o other_o they_o be_v not_o so_o that_o the_o first_o doubt_n whether_o the_o superficial_a part_n create_v those_o colour_n and_o the_o second_o whether_o there_o be_v any_o refraction_n at_o all_o in_o the_o late_a 71_o 72_o 73._o a_o famous_a controversy_n among_o philosopher_n about_o the_o nature_n of_o colour_n decide_v 74._o 75._o chap._n 4._o the_o controversy_n state_v about_o real_a and_o emphatical_a colour_n 75_o 76._o that_o the_o great_a disparity_n between_o they_o seem_v to_o be_v partly_o their_o duration_n in_o the_o same_o state_n and_o partly_o that_o genuine_a colour_n be_v produce_v in_o opacous_a body_n by_o reflection_n and_o emphatical_a in_o transparent_a by_o refraction_n 78._o but_o that_o this_o be_v not_o to_o be_v take_v in_o too_o large_a a_o sense_n the_o cautionary_a instance_n of_o froth_n be_v allege_v and_o insist_v on_o 78_o 79._o that_o the_o duration_n be_v not_o a_o sufficient_a characteristick_n exemplify_v by_o the_o duration_n of_o froth_n and_o other_o emphatical_a colour_n and_o the_o sudden_a fade_a of_o flower_n and_o other_o body_n of_o real_a one_o 80._o that_o the_o position_n of_o the_o eye_n be_v not_o necessary_a to_o the_o discern_a emphatical_a colour_n show_v by_o the_o see_v white_a froth_n or_o a_o iris_n cast_v on_o the_o wall_n by_o a_o prism_n in_o what_o place_n of_o the_o room_n soever_o the_o eye_n be_v 81._o which_o proceed_v from_o the_o specular_a reflection_n of_o the_o wall_n 82._o that_o emphatical_a colour_n may_v be_v compound_v and_o that_o the_o present_a discourse_n be_v not_o much_o concern_v whether_o there_o be_v or_o be_v not_o make_v a_o distinction_n between_o real_a and_o emphatical_a colour_n 83._o chap._n 5._o six_o hypothesis_n about_o colour_n recite_v 84_o 85_o why_o the_o author_n can_v more_o full_o speak_v of_o any_o of_o these_o 86._o nor_o acquiesce_v in_o they_o 87_o 88_o what_o pyrophilus_n be_v to_o expect_v in_o this_o treatise_n 88_o 89._o what_o hypothesis_n of_o light_n and_o colour_n the_o author_n most_o incline_v too_o 90._o why_o he_o think_v neither_o that_n nor_o any_o other_o sufficient_a and_o what_o his_o difficulty_n be_v that_o make_v he_o decline_v all_o hypothesis_n and_o to_o think_v it_o very_o difficult_a to_o stick_v to_o any_o 91_o 92._o part_v the_o second_o of_o the_o nature_n of_o whiteness_n and_o blackness_n chap._n i._n the_o reason_n why_o the_o author_n choose_v the_o explication_n of_o whiteness_n and_o blackness_n 93._o wherein_o democritus_n think_v amiss_o of_o these_o 94._o gassendus_fw-la his_o opinion_n about_o they_o 95._o what_o the_o author_n approve_v and_o a_o more_o full_a explication_n of_o white_a make_v it_o a_o multiplicity_n of_o light_n or_o reflection_n 96_o 97._o confirm_a first_o by_o the_o whiteness_n of_o the_o meridian_n sun_n observe_v in_o water_n 98._o and_o of_o a_o piece_n of_o iron_n glow_v hot_a 99_o second_o by_o the_o offensiveness_n of_o snow_n to_o the_o traveller_n eye_n confirm_v by_o a_o example_n of_o a_o person_n that_o have_v travel_v much_o in_o russia_n 100_o and_o by_o a_o observation_n out_o of_o olaus_n magnus_n 100_o and_o that_o the_o snow_n do_v enlighten_v and_o clear_v the_o air_n in_o the_o night_n confirm_v by_o the_o moscow_n physician_n and_o captain_n james_n 101._o but_o that_o snow_n have_v no_o inherent_a light_n prove_v by_o experience_n 102._o three_o by_o the_o great_a store_n of_o reflection_n from_o white_a body_n observe_v in_o a_o darken_a room_n and_o by_o their_o unaptness_n to_o be_v kindle_v by_o a_o burning-glass_n 103._o four_o the_o specularness_n of_o white_a body_n be_v confirm_v by_o the_o reflection_n in_o a_o dark_a room_n from_o other_o body_n 104._o and_o by_o the_o appearance_n of_o a_o river_n which_o both_o to_o the_o eye_n and_o in_o a_o darken_a room_n appear_v white_a 105._o 106._o five_o by_o the_o whiteness_n of_o distil_a mercury_n and_o that_o of_o the_o galaxy_n 107_o 108._o and_o by_o the_o whiteness_n of_o froth_n raise_v from_o white_n of_o egg_n beat_v that_o this_o whiteness_n come_v not_o from_o the_o air_n show_v by_o experiment_n 109._o 110._o where_o occasional_o the_o whiteness_n of_o distil_v oil_n hot_a water_n etc._n etc._n be_v show_v 111._o that_o it_o seem_v not_o necessary_a the_o reflect_v surface_n shall_v be_v spherical_a confirm_v by_o experiment_n 112_o 113._o six_o by_o the_o whiteness_n of_o the_o powder_n of_o transparent_a body_n 114._o seven_o by_o the_o experiment_n of_o whiten_v and_o burnish_v silver_n 115._o 116._o chap._n 2._o a_o recital_n of_o some_o opinion_n about_o blackness_n and_o which_o the_o author_n incline_v to_o 117._o which_o he_o further_o insist_o on_o and_o explicate_v 118_o 119._o and_o show_v for_o what_o reason_n he_o embrace_v that_o
three_o of_o ting_a glass_n with_o mineral_n substance_n and_o of_o try_v what_o metal_n they_o contain_v by_o this_o mean_n from_o 360_o to_o 362._o annotation_n the_o four_o that_o metal_n may_v be_v tinge_v by_o mineral_n 362_o 363._o annotation_n the_o five_o of_o make_v several_a kind_n of_o amause_n or_o counterfeit_n stone_n from_o 363_o to_o 365._o annotation_n the_o six_o of_o the_o scarlet_a dye_n of_o the_o stain_n of_o dissolve_v gold_n and_o silver_n 366_o 367._o of_o the_o greenness_n of_o salt_n beef_n and_o redness_n of_o neat_n tongue_n from_o salt_n of_o gild_v silver_n with_o bath_n water_n 368_o 369._o and_o ting_v the_o nail_n and_o skin_n with_o alcanna_n 369_o the_o forty_o nine_o experiment_n of_o make_v lake_n 369._o a_o particular_a example_n in_o turmerick_n 370_o 371._o annotation_n the_o first_o that_o in_o precipitation_n wherein_o alum_n be_v a_o coefficient_a a_o great_a part_n of_o they_o may_v consist_v of_o the_o stony_a particle_n of_o that_o compound_v body_n from_o 372_o to_o 375._o annotation_n the_o second_o that_o lake_n may_v be_v make_v of_o other_o substance_n as_o mad_a rue_n etc._n etc._n but_o that_o alcalizate_a salt_n do_v not_o always_o extract_v the_o same_o colour_n of_o which_o the_o vegetable_a appear_v from_o 376_o to_o 378._o annotation_n the_o three_o that_o the_o experiment_n relate_v may_v hint_n divers_a other_o 378._o annotation_n the_o four_o that_o alum_n be_v useful_a for_o the_o prepare_v other_o than_o vegetable_a pigment_n 379._o the_o fifty_o experiment_n of_o the_o similar_v effect_n of_o saccarum_fw-la ♄_o and_o alkaly_n of_o precipitate_v with_o oil_n of_o vitriol_n out_o of_o aquafortis_n and_o spirit_n of_o vinegar_n and_o of_o divers_a varying_n of_o the_o colour_n with_o these_o compound_v from_o 380_o to_o 384._o another_o very_a pretty_a experiment_n with_o a_o solution_n of_o minium_n 384_o 385._o that_o these_o experiment_n skilful_o digest_v may_v hint_n divers_a matter_n about_o colour_n 386._o the_o author_n apologetic_a conclusion_n in_o which_o be_v cursory_o hint_v the_o bow_n or_o scarlet_n dye_v 387._o the_o author_n letter_n to_o sir_n robert_n moray_n concern_v his_o observation_n on_o the_o shine_v diamond_n 391._o etc._n etc._n and_o the_o observation_n themselves_o errata_fw-la pag._n 142._o l._n 20._o these_o word_n and_o to_o manifest_v with_o the_o rest_n of_o what_o be_v by_o a_o mistake_n further_o print_v in_o this_o four_o experiment_n belong_v and_o be_v to_o be_v refer_v to_o the_o end_n of_o the_o second_o eperiment_n p._n 137._o pag._n 145._o l._n 1._o leg_n matter_n 146._o l._n 4._o log_n bolts-head_n pag._n 161._o in_o the_o marginal_a note_n l._n 2._o deal_n de_fw-fr ib._n l._n 3._o lege_fw-la lib._n 1._o p._n 163._o l._n ult_n insert_v where_o between_o the_o word_n place_n and_o the._n p._n 164_o l._n 1._o deal_n that_o ibid._n l._n 8._o leg_n epidermis_fw-la ibid._n l._n 19_o leg_n 300_o for_o 200._o p._n 169._o l._n 22._o leg_n into_o it_o p._n 170._o l._n 23._o &_o 24._o leg_n some_o solution_n hereafter_o to_o be_v mention_v for_o the_o solution_n of_o potash_n and_o other_o lixiviate_v salt_n p._n 171._o l._n 6._o insert_v part_n of_o between_o the_o word_n most_o and_o dissolve_v p._n 176._o l._n ult_n insert_v theparticle_n it_o between_o the_o word_n judge_v and_o not_o p._n 234._o l._n 4._o log_n woud-wax_n or_o wood-wax_n p._n 320l_o 29._o leg_n urine_n for_o urn_n the_o experimental_a history_n of_o colour_n begin_v the_o first_o part_n chap._n i._n i_o have_v see_v you_o so_o passionate_o addict_v pyrophilus_n to_o the_o delightful_a art_n of_o limn_v and_o paint_v that_o i_o can_v but_o think_v myself_o oblige_v to_o acquaint_v you_o with_o some_o of_o those_o thing_n that_o have_v occur_v to_o i_o concern_v the_o change_n of_o colour_n and_o i_o may_v expect_v that_o i_o shall_v as_o well_o serve_v the_o virtuoso_n in_o general_a as_o gratify_v you_o in_o particular_a by_o furnish_v a_o person_n 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have_v to_o reflect_v much_o light_n fifteenth_o have_v well_o excite_v the_o stone_n i_o nimble_o plunge_v property_n it_o under_o water_n that_o i_o have_v provide_v for_o that_o purpose_n and_o perceive_v it_o to_o shine_v whilst_o it_o be_v beneath_o the_o surface_n of_o that_o liquor_n and_o this_o i_o do_v divers_a time_n but_o when_o i_o endeavour_v to_o produce_v a_o light_n by_o rub_v it_o upon_o the_o late_o mention_v cover_v of_o the_o box_n the_o stone_n and_o it_o be_v both_o hold_v beneath_o the_o surface_n of_o the_o water_n i_o do_v not_o well_o satisfy_v myself_o in_o the_o event_n of_o the_o trial_n but_o this_o i_o find_v if_o i_o take_v the_o stone_n out_o and_o rub_v it_o upon_o a_o piece_n of_o cloth_n it_o will_v not_o as_o else_o it_o be_v wont_a to_o do_v present_o acquire_v a_o luminousness_n but_o need_v to_o be_v rub_v manifest_o much_o long_o before_o the_o desire_a effect_n be_v find_v sixteenth_o i_o also_o try_v several_a stone_n time_n that_o by_o 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transparent_a horn_n by_o which_o mean_v the_o light_n through_o that_o diaphavous_a substance_n do_v whilst_o i_o be_v actual_o rub_v the_o stone_n appear_v so_o brisk_a that_o sometime_o and_o in_o some_o place_n it_o seem_v to_o have_v little_a spark_n of_o fire_n eighteenth_o i_o take_v also_o a_o piece_n of_o flat_a blue_a glass_n and_o have_v rub_v the_o diamond_n well_o upon_o a_o cloth_n and_o nimble_o clap_v the_o glass_n upon_o it_o to_o try_v whether_o in_o case_n the_o light_n can_v pierce_v it_o it_o will_v by_o appear_v green_a or_o of_o some_o other_o colour_n than_o blow_v assist_v i_o to_o guess_v whether_o itself_o be_v sincere_a or_o no._n but_o find_v the_o glass_n impervious_a to_o so_o faint_a a_o light_n i_o then_o think_v it_o fit_a to_o try_v whether_o that_o hard_a body_n will_v not_o by_o attrition_n increase_v the_o diamond_n light_v so_o as_o to_o become_v penetrable_a thereby_o and_o according_o when_o i_o rub_v the_o glass_n brisk_o upon_o the_o stone_n i_o find_v the_o light_n to_o be_v conspicuous_a enough_o and_o somewhat_o die_v in_o its_o passage_n but_o find_v it_o not_o easy_a to_o give_v a_o name_n to_o the_o colour_n it_o exhibit_v last_o to_o comply_v with_o the_o suspicion_n i_o have_v upon_o the_o whole_a matter_n that_o the_o chief_a manifest_a change_n wrought_v in_o the_o stone_n be_v by_o compression_n of_o its_o part_n rather_o than_o incalescence_n i_o take_v a_o piece_n of_o white_a tile_n well_o glaze_v and_o if_o i_o press_v the_o stone_n hard_o against_o it_o it_o seem_v though_o i_o do_v not_o rub_v it_o to_o and_o fro_o to_o shine_v at_o the_o side_n and_o however_o it_o do_v both_o very_o manifest_o and_o vigorous_o shine_v if_o whilst_o i_o so_o press_v it_o i_o move_v it_o any_o way_n upon_o the_o surface_n of_o the_o tile_n though_o i_o do_v not_o make_v it_o draw_v a_o line_n of_o above_o a_o quarter_n of_o a_o inch_n long_o or_o thereabouts_o and_o though_o i_o make_v it_o not_o move_v to_o and_o '_o fro_o but_o only_o from_o one_o end_n of_o the_o short_a line_n to_o the_o other_o without_o any_o return_n or_o lateral_a motion_n nay_o after_o it_o have_v be_v often_o rub_v and_o suffer_v to_o lose_v its_o light_n again_o not_o only_o it_o seem_v more_o easy_a to_o be_v excite_v than_o at_o the_o begin_n of_o the_o night_n but_o if_o i_o do_v press_v hard_o upon_o it_o with_o my_o finger_n at_o the_o very_a instant_n that_o i_o draw_v it_o brisk_o off_o it_o will_v disclose_v a_o very_a vivid_n but_o exceed_v short_a live_v splendour_n not_o to_o call_v it_o a_o little_a coruscation_n light_n so_o that_o a_o cartesian_a will_v scarce_o scruple_n