far_o as_o divers_a earthquake_n have_v do_v but_o that_o the_o fire_n pass_v through_o some_o little_a subterraneal_a cleft_n or_o channel_n or_o hide_a conveyance_n from_o one_o great_a cavity_n or_o i_o to_o another_o yet_o it_o be_v not_o improbable_a but_o that_o the_o vehement_o tremulous_a motion_n do_v oftentimes_o reach_v a_o very_a great_a way_n beyond_o the_o place_n where_o the_o explosion_n be_v make_v since_o though_o seneca_n will_v confine_v the_o extent_n of_o 25._o earthquake_n to_o two_o hundred_o mile_n yet_o observation_n make_v in_o this_o and_o the_o last_o century_n warrant_v we_o to_o allow_v they_o a_o far_o great_a spread_v the_o learned_a 26._o josephus_n acosta_n affirm_v that_o in_o the_o kingdom_n of_o peru_n in_o the_o year_n 1586_o a_o earthquake_n reach_v along_o the_o shore_n of_o the_o pacifick_n sea_n 160_o league_n and_o add_v that_o sometime_o it_o have_v in_o those_o part_n run_v on_o from_o south_n to_o north_n 300_o league_n and_o in_o the_o 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malignity_n of_o the_o plague_n yet_o i_o doubt_v they_o be_v not_o sufficient_a for_o so_o wonderful_a a_o effect_n unless_o we_o take_v in_o some_o new_a exhalation_n that_o then_o impregnate_n and_o correct_v the_o air._n and_o we_o shall_v scarce_o doubt_v of_o the_o great_a interest_n these_o have_v in_o the_o effect_n produce_v if_o we_o give_v credit_n to_o what_o the_o recent_a writer_n i_o have_v meet_v with_o of_o voyage_n into_o egypt_n have_v late_o publish_v about_o the_o annual_a pestilence_n at_o grand_a cairo_n a_o city_n he_o much_o frequent_v this_o author_n in_o the_o account_n he_o give_v of_o the_o present_a state_n of_o egypt_n relate_v that_o a_o little_a after_o the_o middle_n of_o our_o june_n and_o usual_o upon_o the_o very_a seventeen_o day_n there_o begin_v to_o fall_v towards_o the_o last_o quarter_n of_o the_o night_n near_o the_o morning_n certain_a drop_n of_o a_o kind_n of_o dew_n which_o cause_v the_o river_n to_o be_v fruitful_a and_o purify_v the_o 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there_o in_o this_o paper_n about_o the_o salubrity_n of_o the_o air_n may_v probable_o gain_v the_o more_o credit_n if_o i_o here_o subjoin_v what_o i_o learn_v by_o inquiry_n from_o a_o very_a ingenious_a gentleman_n who_o be_v owner_n of_o one_o or_o more_o of_o the_o mine_n that_o afford_v the_o phaenomenon_n i_o be_o to_o mention_v which_o be_v this_o that_o in_o the_o tin-mine_a country_n in_o devonshire_n it_o sometime_o happen_v as_o perhaps_o i_o may_v have_v elsewhere_o note_v to_o another_o purpose_n that_o upon_o a_o sudden_a a_o spot_n of_o ground_n and_o that_o not_o always_o narrow_a will_v be_v as_o it_o be_v blast_v by_o the_o ascend_a hurtful_a fume_n insomuch_o that_o not_o only_o the_o grass_n fern_n and_o other_o more_o tender_a vegetable_n will_v be_v turn_v black_a and_o as_o it_o be_v burn_v or_o scorch_v up_o but_o now_o and_o then_o tree_n also_o without_o except_v oak_n themselves_o will_v be_v blast_v and_o spoil_v by_o the_o powerful_a operation_n of_o these_o subtle_a and_o poisonous_a effluvia_fw-la it_o will_v probable_o be_v here_o expect_v that_o among_o the_o epidemical_a disease_n that_o our_o hypothesis_n derive_v from_o subterraneal_a effluvia_fw-la i_o shall_v particular_o treat_v of_o the_o cause_n of_o pestilential_a fever_n and_o the_o plague_n itself_o but_o though_o some_o such_o fever_n may_v not_o improbable_o be_v in_o great_a part_n impute_v to_o the_o noxious_a expiration_n of_o the_o globe_n we_o inhabit_v yet_o as_o to_o the_o true_a plague_n itself_o i_o free_o confess_v i_o be_o at_o a_o loss_n about_o its_o origine_fw-la the_o sacred_a write_n express_o teach_v that_o some_o plague_n and_o particular_o that_o which_o in_o david_n time_n sweep_v away_o in_o three_o day_n 70000_o person_n have_v be_v in_o a_o extraordinary_a manner_n inflict_v by_o god_n and_o to_o i_o it_o appear_v either_o scarce_o possible_a or_o far_o more_o difficult_a than_o those_o that_o have_v not_o attentive_o enough_o consider_v the_o matter_n be_v wont_a to_o think_v it_o to_o deduce_v the_o abstruse_a origine_fw-la strange_a symptom_n and_o other_o odd_a phaenomena_n of_o some_o plague_n that_o be_v record_v in_o history_n from_o mere_o corporeal_a cause_n on_o the_o other_o side_n it_o seem_v unphilosophical_a and_o perhaps_o rather_o seem_v than_o be_v very_o pious_a to_o recur_v without_o a_o absolute_a necessity_n to_o supernatural_a cause_n for_o such_o effect_n as_o do_v not_o manifest_o exceed_v the_o power_n of_o natural_a one_o though_o the_o particular_a manner_n of_o their_o be_v produce_v be_v perchance_o more_o than_o we_o be_v yet_o able_a clear_o to_o explicate_v and_o i_o think_v it_o the_o more_o questionable_a whether_o all_o plague_n be_v supernatural_a exertion_n of_o god_n power_n and_o wrath_n against_o the_o wicked_a because_o i_o observe_v that_o brute_n which_o be_v as_o well_o uncapable_a of_o moral_a vice_n as_o moral_a virtue_n be_v yet_o oftentimes_o subject_a to_o murrain_n such_o as_o may_v without_o incongruity_n be_v look_v upon_o as_o the_o pestilence_n of_o beast_n and_o it_o be_v the_o less_o likely_a that_o these_o sweep_a and_o contagious_a malady_n shall_v be_v always_o send_v for_o the_o punishment_n of_o impious_a man_n because_o i_o remember_v to_o have_v read_v in_o good_a author_n that_o as_o some_o plague_n destroy_v both_o man_n and_o beast_n so_o some_o other_o do_v peculiar_o destroy_v brute_n animal_n of_o very_o little_a consideration_n or_o use_n to_o man_n as_o cat_n etc._n etc._n upon_o these_o and_o the_o like_a reason_n i_o have_v sometime_o suspect_v that_o in_o the_o controversy_n about_o the_o origine_fw-la of_o the_o plague_n namely_o whether_o it_o be_v natural_a or_o supernatural_a neither_o of_o the_o contend_a party_n be_v altogether_o in_o the_o right_n since_o it_o be_v very_o possible_a that_o some_o pestilence_n may_v not_o break_v forth_o without_o a_o extraordinary_a though_o perhaps_o not_o immediate_a interposition_n of_o almighty_a god_n provoke_v by_o the_o sin_n of_o man_n and_o yet_o other_o plague_n may_v be_v produce_v by_o a_o tragical_a concourse_n of_o mere_o natural_a cause_n but_o though_o the_o difficulty_n that_o encumber_v each_o of_o the_o opposite_a opinion_n keep_v i_o both_o from_o dogmatical_o assert_v that_o all_o plague_n have_v a_o supernatural_a origine_fw-la and_o from_o deny_v that_o any_o have_v it_o yet_o to_o say_v something_o on_o such_o a_o occasion_n though_o i_o can_v speak_v but_o very_o hesitant_o i_o shall_v venture_v to_o add_v that_o whether_o or_o no_o the_o true_a plague_n be_v say_v to_o descend_v to_o the_o earth_n from_o a_o high_a sphere_n than_o that_o of_o nature_n yet_o its_o propagation_n and_o effect_n be_v at_o least_o for_o the_o most_o part_n carry_v on_o main_o by_o a_o malignant_a disposition_n in_o the_o air_n without_o which_o some_o plague_n can_v never_o have_v be_v so_o catch_v as_o they_o be_v nor_o so_o sudden_o mortal_a and_o that_o in_o divers_a pestilence_n this_o malignant_a disposition_n in_o the_o air_n may_v probable_o be_v in_o great_a part_n impute_v to_o some_o kind_n of_o subterraneal_a expiration_n i_o be_o prone_a to_o think_v and_o that_o chief_o upon_o two_o account_n the_o first_o thing_n that_o induce_v i_o to_o this_o conjecture_n be_v that_o not_o any_o of_o the_o several_a cause_n to_o which_o the_o plague_n be_v wont_a to_o be_v impute_v seem_v to_o i_o to_o be_v sufficient_a those_o that_o fetch_v it_o from_o the_o malevolent_a aspect_n and_o influence_n of_o the_o celestial_a light_n beside_o that_o they_o suppose_v some_o thing_n very_o difficult_a to_o be_v prove_v have_v recourse_n to_o agent_n too_o remote_a too_o general_a and_o too_o indeterminate_a to_o be_v acquiesce_v in_o as_o the_o cause_n of_o such_o particular_a symptom_n and_o phaenomena_n as_o oftentimes_o accompany_v pestilence_n and_o as_o for_o those_o other_o sect_n of_o physician_n that_o confident_o derive_v the_o plague_n some_o from_o internal_a putrefaction_n and_o other_o from_o excessive_a heat_n noisome_a stink_v corrupt_a aliment_n and_o such_o other_o celebrate_v cause_n though_o each_o party_n allege_v plausible_a reason_n for_o its_o own_o opinion_n yet_o their_o objection_n against_o their_o adversary_n be_v much_o strong_a than_o their_o argument_n be_v for_o themselves_o and_o the_o learned_a diemerbroeck_a though_o his_o own_o hypothesis_n seem_v to_o be_v more_o theological_a than_o philosophical_a have_v much_o enervate_v the_o argument_n bring_v for_o the_o several_a opinion_n late_o name_v and_o by_o he_o dissent_v from_o the_o reason_n he_o employ_v to_o refute_v all_o the_o receive_v opinion_n about_o the_o origine_fw-la of_o the_o plague_n except_o his_o own_o be_v divers_a of_o they_o worthy_a of_o so_o learned_a a_o man_n to_o who_o though_o i_o have_v leisure_n to_o transcribe_v they_o i_o shall_v refer_v the_o curious_a my_o present_a design_n be_v only_o
in_o the_o production_n of_o divers_a difficult_a phaenomena_n of_o nature_n that_o be_v wont_a to_o be_v refer_v to_o less_o genuine_a as_o well_o as_o less_o intelligible_a cause_n finis_fw-la a_o experimental_a discourse_n of_o some_o unheeded_a cause_n of_o the_o insalubrity_n and_o salubrity_n of_o the_o air_n be_v a_o part_n of_o a_o intend_a natural_a history_n of_o air_n london_n print_v by_o m._n flesher_n for_o richard_n davis_n bookseller_n in_o oxford_n 1685._o the_o preface_n have_v heretofore_o have_v occasion_n to_o draw_v together_o under_o certain_a head_n divers_a unpublished_a observation_n and_o experiment_n of_o my_o own_o and_o some_o of_o other_o man_n by_o way_n of_o memorial_n for_o a_o natural_a history_n of_o the_o air_n i_o think_v fit_a by_o more_o large_o treat_v of_o two_o or_o three_o of_o the_o subject_n distinct_o mention_v in_o my_o scheme_n of_o title_n to_o give_v a_o semplar_n or_o specimen_fw-la of_o what_o may_v be_v do_v upon_o the_o other_o 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in_o ireland_n where_o they_o be_v so_o rise_v as_o common_o to_o pass_v under_o the_o name_n of_o the_o country_n disease_n that_o these_o endemical_a or_o if_o we_o may_v so_o call_v they_o topical_a distemper_n do_v in_o many_o place_n proceed_v from_o some_o excessive_a heat_n moisture_n or_o other_o manifest_a quality_n of_o the_o air_n from_o bad_a diet_n vulgar_a intemperance_n and_o other_o cause_n that_o have_v little_a or_o no_o connexion_n with_o subterraneal_a reek_n i_o ready_o grant_v but_o that_o in_o some_o place_n the_o endemical_a disease_n may_v either_o be_v principal_o cause_v or_o much_o foment_v by_o noxious_a effluvia_fw-la i_o be_o incline_v to_o suspect_v upon_o the_o follow_a ground_n 1._o there_o be_v some_o place_n in_o which_o the_o endemical_a disease_n can_v be_v probable_o impute_v to_o any_o manifest_a cause_n as_o he_o may_v perceive_v that_o shall_v consider_v how_o often_o it_o happen_v that_o the_o cause_n which_o be_v assign_v of_o such_o 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the_o thing_n itself_o that_o those_o copious_a steam_n saline_n sulphureous_a arsenical_a antimonial_a etc._n etc._n that_o impregnate_n the_o air_n may_v very_o much_o conduce_v to_o make_v it_o hurtful_a to_o a_o humane_a body_n in_o the_o way_n requisite_a to_o produce_v this_o or_o that_o determinate_a disease_n as_o i_o not_o long_o since_o relate_v from_o the_o chemist_n that_o visit_v the_o hungarian_a mine_n that_o in_o some_o place_n he_o find_v the_o reek_n ascend_v from_o they_o into_o the_o air_n though_o in_o a_o elevate_a place_n and_o expose_v to_o the_o wind_n make_v he_o as_o it_o be_v asthmatical_a and_o give_v he_o a_o troublesome_a difficulty_n of_o respiration_n and_o here_o let_v i_o add_v a_o observation_n which_o perhaps_o will_v not_o be_v think_v fit_a to_o be_v slight_v by_o physician_n namely_o that_o some_o part_n of_o the_o substance_n of_o the_o air_n for_o i_o speak_v not_o of_o its_o heat_n coldness_n or_o other_o such_o quality_n do_v not_o only_o 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and_o exhalation_n and_o in_o a_o word_n with_o corpuscle_n of_o all_o sort_n except_o the_o large_a sort_n of_o springy_a one_o and_o many_o of_o they_o may_v be_v so_o small_a and_o so_o solid_a or_o so_o convenient_o shape_v as_o to_o get_v entrance_n at_o some_o of_o the_o numerous_a orifice_n of_o the_o minute_n or_o miliary_a glandule_n of_o the_o skin_n or_o at_o other_o pore_n of_o it_o thus_o though_o paper_n be_v not_o pervious_a to_o the_o uncompressed_a elastical_a part_n of_o the_o air_n yet_o it_o may_v be_v easy_o penetrate_v by_o other_o corpuscle_n of_o the_o atmosphere_n for_o i_o remember_v i_o have_v for_o curiosity_n sake_n prepare_v a_o dry_a body_n out_o of_o a_o substance_n belong_v to_o the_o animal_n kingdom_n which_o be_v leap_v up_o in_o paper_n will_v without_o wet_v or_o discolour_v or_o any_o way_n sensible_o alter_v it_o pass_v in_o a_o trice_n through_o the_o pore_n of_o it_o in_o such_o plenty_n as_o to_o have_v not_o only_o a_o visible_a but_o a_o manifest_a operation_n on_o body_n place_v at_o some_o distance_n from_o it_o and_o though_o a_o bladder_n almost_o full_a of_o air_n have_v its_o neck_n well_o tie_v be_v hold_v near_o the_o fire_n in_o various_a posture_n the_o elastical_a air_n though_o rarefy_v or_o attenuate_v by_o the_o heat_n will_v rather_o burst_v the_o bladder_n as_o i_o have_v more_o than_o once_o find_v than_o get_v out_o at_o the_o pore_n yet_o we_o have_v often_o make_v a_o certain_a substance_n belong_v to_o the_o mineral_n kingdom_n that_o if_o a_o bladder_n be_v wet_a or_o moist_a as_o the_o skin_n of_o live_a man_n be_v wont_a to_o be_v will_v ready_o pervade_v it_o and_o have_v a_o sensible_a operation_n even_o upon_o solid_a body_n place_v within_o it_o this_o experiment_n that_o i_o can_v repeat_v when_o i_o will_v be_v therefore_o the_o more_o considerable_a to_o our_o present_a purpose_n because_o in_o the_o bladder_n of_o a_o dead_a animal_n the_o porosity_n may_v be_v well_o suppose_v to_o be_v much_o less_o than_o it_o be_v in_o the_o animal_n when_o alive_a in_o which_o state_n the_o part_n of_o the_o humane_a body_n be_v much_o more_o perspirable_a than_o one_o will_v easy_o believe_v partly_o because_o of_o the_o heat_n that_o be_v continual_o diffuse_v from_o the_o heart_n and_o partly_o because_o of_o the_o copious_a steam_n that_o be_v in_o perpetual_a motion_n and_o keep_v the_o part_n warm_a moist_a and_o supple_a and_o it_o be_v not_o to_o be_v pretermit_v in_o our_o present_a instance_n that_o the_o bladder_n of_o urine_n consist_v not_o of_o a_o single_a membrane_n and_o be_v probable_o of_o a_o strong_a texture_n by_o reason_n of_o the_o subtle_a salt_n liquor_n it_o be_v institute_v to_o contain_v than_o many_o another_o membrane_n of_o the_o body_n or_o the_o epidermis_fw-fr and_o this_o be_v the_o first_o thing_n i_o will_v have_v note_v the_o next_o be_v that_o whereas_o in_o the_o instance_n new_o recite_v and_o some_o other_o that_o be_v by_o and_o by_o to_o be_v mention_v the_o effect_n be_v produce_v when_o the_o ambient_fw-la air_n impregnate_v with_o mineral_n corpuscle_n have_v but_o a_o very_a short_a time_n perhaps_o not_o many_o minute_n to_o work_v upon_o the_o body_n expose_v to_o it_o in_o those_o country_n that_o be_v very_a subject_n to_o endemical_a disease_n the_o inhabitant_n be_v wont_a to_o live_v all_o the_o year_n long_o and_o perhaps_o during_o their_o whole_a life_n expose_v to_o the_o action_n of_o the_o vitiate_a air_n and_o how_o much_o a_o far_o short_a time_n will_v serve_v to_o make_v the_o corpuscle_n that_o rove_v in_o the_o air_n penetrate_v into_o body_n of_o no_o very_a close_a contexture_n may_v be_v guess_v by_o the_o break_n even_o of_o the_o big_a string_n of_o lute_n and_o vial_n by_o the_o numerous_a though_o invisible_a vapour_n that_o get_v into_o they_o in_o rainy_a weather_n and_o much_o more_o by_o the_o effect_n of_o such_o vapour_n when_o insinuate_v themselves_o in_o swarm_n into_o the_o pore_n of_o a_o rope_n they_o shorten_v it_o so_o forcible_o as_o to_o enable_v it_o by_o shrink_v itself_o to_o lift_v up_o and_o keep_v suspend_v considerable_a weight_n as_o i_o have_v elsewhere_o show_v by_o trial_n purposely_o make_v these_o thing_n may_v render_v it_o probable_a that_o though_o in_o a_o small_a compass_n of_o time_n the_o noxious_a effluvia_fw-la that_o rove_v in_o the_o air_n may_v be_v too_o thin_o disperse_v in_o it_o to_o insinuate_v themselves_o in_o any_o considerable_a number_n at_o the_o pore_n of_o the_o skin_n yet_o by_o reason_n of_o the_o continual_a contact_n of_o the_o air_n especial_o as_o to_o the_o face_n hand_n and_o some_o other_o part_n which_o may_v last_o day_n and_o night_n for_o many_o month_n or_o perhaps_o year_n there_o may_v be_v opportunity_n for_o a_o considerable_a number_n of_o morbific_a
to_o deliver_v some_o few_o thing_n that_o seem_v more_o favourable_a to_o my_o conjecture_n than_o to_o his_o opinion_n and_o be_v suggest_v to_o i_o partly_o by_o my_o own_o thought_n and_o partly_o by_o the_o information_n that_o to_o examine_v those_o thought_n i_o procure_v by_o consult_v some_o uncommon_a author_n and_o ask_v question_n of_o great_a traveller_n and_o navigatour_n by_o this_o mean_n i_o come_v to_o learn_v that_o divers_a great_a country_n be_v usual_o free_a from_o the_o plague_n that_o according_a to_o the_o vulgar_a hypothesis_n aught_o to_o be_v as_o much_o subject_n to_o it_o if_o not_o more_o than_o england_n france_n italy_n and_o those_o other_o part_n of_o europe_n and_o asia_n where_o that_o fatal_a disease_n rage_v from_o time_n to_o time_n in_o the_o parch_a region_n of_o africa_n to_o which_o the_o excessive_a heat_n will_v make_v one_o expect_v that_o the_o plague_n shall_v make_v far_o more_o frequent_a visit_n than_o to_o our_o temperate_a 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hear_v the_o english_a take_v any_o notice_n of_o the_o plague_n since_o their_o settle_v there_o above_o threescore_o and_o ten_o year_n ago_o and_o as_o for_o the_o east_n indies_n sir_n philibert_n vernatti_n a_o virtuoso_fw-la of_o great_a fame_n and_o authority_n at_o batavia_n where_o he_o reside_v in_o his_o ingenious_a return_v to_o the_o query_n send_v he_o by_o the_o royal_a society_n of_o naturalist_n answer_v thus_o to_o the_o fifteen_o pestis_fw-la morbus_fw-la est_fw-la indiarum_fw-la incolis_fw-la incognitus_fw-la the_o plague_n be_v a_o disease_n unknown_a among_o the_o indian_n and_o of_o the_o country_n that_o lie_v yet_o more_o remote_a as_o the_o great_a empire_n of_o china_n and_o the_o kingdom_n of_o tunquin_n and_o of_o cochinchina_n that_o great_a traveller_n alexander_n de_fw-fr rhodes_n who_o spend_v 30_o year_n in_o those_o part_n affirm_v that_o the_o plague_n be_v not_o so_o much_o as_o speak_v of_o there_o and_o yet_o the_o same_o jesuit_n do_v upon_o ground_n probable_a enough_o estimate_v the_o number_n of_o the_o people_n of_o china_n alone_o to_o be_v two_o hundred_o and_o fifty_o million_o a_o number_n i_o take_v to_o exceed_v by_o far_o that_o of_o all_o the_o nation_n of_o europe_n now_o when_o i_o consider_v how_o vast_a tract_n of_o land_n be_v comprise_v in_o those_o country_n some_o of_o which_o the_o plague_n do_v not_o at_o all_o and_o other_o but_o exceed_v unfrequent_o invade_v this_o immunity_n seem_v to_o i_o very_o unfavourable_a to_o most_o if_o not_o all_o the_o opinion_n receive_v among_o physician_n as_o also_o that_o of_o diemerbroeck_n himself_o who_o derive_v the_o plague_n from_o a_o supernatural_a cause_n the_o wrath_n of_o god_n against_o the_o sin_n of_o man_n for_o in_o region_n of_o such_o extent_n and_o divers_a of_o they_o very_o populous_a which_o be_v seat_v under_o very_o differ_v climate_n and_o which_o be_v some_o of_o they_o inhabit_v by_o nation_n that_o make_v war_n with_o numerous_a army_n fight_v bloody_a battle_n leave_v heap_n of_o unburied_a body_n expose_v to_o the_o putrefying_a heat_n of_o the_o sun_n be_v sometime_o force_v as_o well_o as_o other_o to_o live_v upon_o very_o unwonted_a and_o unwholesome_a food_n that_o worship_n stock_n and_o stone_n and_o beast_n and_o some_o of_o they_o devil_n who_o they_o know_v to_o be_v such_o that_o be_v at_o least_o as_o guilty_a as_o european_n of_o assassinat_n poison_n rape_n oppression_n sodomy_n and_o other_o cry_a sin_n in_o these_o region_n i_o say_v it_o be_v not_o imaginable_a but_o that_o great_a intemperature_n of_o the_o air_n especial_o in_o point_n of_o heat_n stench_n of_o dead_a body_n kill_v in_o fight_n unwholsomness_n of_o aliment_n malevolent_a aspect_n of_o celestial_a body_n high_a provocation_n of_o the_o divine_a justice_n and_o in_o short_a all_o the_o cause_n to_o one_o or_o other_o of_o which_o the_o several_a party_n of_o physician_n be_v wont_a to_o refer_v the_o plague_n shall_v be_v want_v any_o more_o than_o in_o our_o europe_n and_o yet_o the_o plague_n which_o be_v presume_v to_o be_v the_o effect_n of_o one_o or_o other_o of_o those_o cause_n be_v not_o here_o observe_v to_o be_v produce_v i_o know_v that_o it_o may_v be_v say_v that_o the_o historical_a thing_n i_o have_v be_v recite_v do_v not_o only_o oppugn_v the_o several_a receive_v opinion_n of_o physician_n about_o the_o cause_n of_o the_o plague_n but_o disfavour_v my_o conjecture_n too_o but_o if_o this_o be_v say_v i_o desire_v it_o may_v also_o be_v consider_v that_o my_o judgement_n about_o the_o plague_n consist_v of_o two_o part_n one_o that_o it_o be_v exceed_o difficult_a to_o assign_v the_o true_a and_o adequate_a cause_n of_o the_o origine_fw-la of_o the_o pestilence_n and_o the_o other_o that_o whatever_o be_v the_o cause_n of_o its_o first_o eruption_n its_o propagation_n and_o divers_a of_o its_o symptom_n may_v be_v probable_o enough_o refer_v to_o the_o depravation_n of_o the_o air_n by_o subterraneal_a steam_n and_o their_o effect_n if_o this_o be_v due_o consider_v the_o historical_a observation_n will_v appear_v not_o to_o overthrow_v the_o first_o member_n of_o our_o hypothesis_n but_o rather_o to_o confirm_v it_o and_o it_o be_v upon_o this_o account_n that_o i_o have_v mention_v they_o in_o this_o place_n and_o as_o to_o the_o second_o member_n it_o may_v be_v say_v that_o since_o in_o the_o east_n indies_n and_o the_o other_o country_n i_o have_v name_v as_o privilege_v from_o this_o rage_a disease_n it_o be_v not_o observe_v to_o break_v out_o as_o it_o can_v be_v say_v that_o subterraneal_a effluvia_fw-la do_v in_o those_o country_n promote_v the_o propagation_n of_o it_o so_o it_o can_v be_v prove_v that_o they_o can_v not_o do_v it_o incase_o the_o plague_n be_v begin_v by_o other_o cause_n but_o in_o regard_n i_o think_v it_o not_o improbable_a that_o sometime_o the_o plague_n be_v not_o only_o foment_v but_o begin_v by_o noxious_a expiration_n of_o the_o terrestrial_a globe_n i_o shall_v add_v that_o this_o supposition_n though_o i_o confess_v it_o be_v somewhat_o disfavour_v by_o some_o of_o the_o late_o mention_v observation_n yet_o be_v not_o absolute_o inconsistent_a with_o they_o for_o first_o it_o may_v be_v say_v that_o some_o of_o the_o country_n i_o speak_v of_o may_v be_v destitute_a of_o those_o noxious_a mineral_n to_o which_o we_o impute_v some_o plague_n it_o hold_v true_a in_o mineral_n as_o well_o as_o in_o plant_n non_fw-la omnis_fw-la fert_fw-la omne_fw-la tellus_fw-la and_o to_o omit_v what_o i_o have_v not_o without_o some_o wonder_n observe_v of_o the_o limit_n of_o differ_v sort_n of_o mine_n and_o mineral_n vein_n in_o very_a border_a part_n of_o the_o same_o tract_n of_o land_n i_o can_v but_o here_o take_v notice_n that_o though_o sulphur_n be_v in_o many_o country_n usual_o find_v and_o that_o in_o plenty_n where_o there_o be_v other_o metalline_a vein_n insomuch_o that_o chemist_n make_v it_o one_o of_o the_o three_o principle_n of_o all_o metal_n yet_o in_o the_o mine_n of_o england_n more_o strict_o so_o call_v i_o do_v not_o remember_v i_o ever_o meet_v with_o so_o much_o as_o a_o ounce_n of_o native_a sulphur_n and_o i_o can_v not_o find_v by_o divers_a mineralist_n of_o who_o i_o purposely_o ask_v the_o question_n that_o they_o have_v meet_v with_o any_o among_o the_o various_a mine_n they_o have_v frequent_v it_o may_v also_o happen_v that_o there_o may_v be_v hurtful_a mineral_n in_o a_o country_n and_o yet_o not_o capable_a of_o often_o produce_v or_o promote_a pestilence_n there_o even_o upon_o moderate_a earthquake_n for_o it_o be_v possible_a that_o these_o orpimental_a or_o other_o noxious_a mineral_n may_v have_v their_o bed_n or_o vein_n lie_v so_o deep_a in_o the_o earth_n that_o they_o be_v not_o ordinary_o able_a to_o send_v up_o effluvia_fw-la strong_a and_o copious_a enough_o to_o make_v
foam_n of_o the_o morbific_a effluvia_fw-la be_v soon_o destroy_v or_o spend_v whereas_o some_o other_o may_v continue_v long_o upon_o the_o stage_n as_o have_v under_o ground_n more_o settle_v and_o durable_a cause_n to_o maintain_v they_o which_o last_o part_n of_o the_o observation_n may_v be_v illustrate_v by_o what_o happen_v in_o calabria_n which_o province_n though_o it_o have_v be_v observe_v to_o have_v acquire_v within_o these_o two_o or_o three_o age_n the_o faculty_n of_o produce_v manna_n upon_o certain_a tree_n est_fw-la yet_o this_o great_a change_n though_o sudden_a enough_o have_v it_o seem_v such_o stable_a cause_n as_o well_o as_o of_o great_a extent_n that_o it_o have_v last_v several_a score_n of_o year_n and_o continue_v in_o that_o country_n to_o this_o day_n i_o be_o not_o ignorant_a that_o the_o whole_a doctrine_n propound_v in_o the_o four_o proposition_n about_o the_o insalubrity_n of_o the_o air_n be_v not_o at_o all_o comfortable_a either_o to_o patient_n or_o physician_n but_o important_a theory_n deserve_v to_o be_v inquire_v into_o and_o if_o true_a to_o be_v deliver_v though_o we_o can_v wish_v they_o be_v untrue_a and_o judicious_a man_n rather_o thank_v than_o blame_v those_o that_o have_v give_v we_o account_n of_o latent_fw-la or_o unsuspected_a though_o perhaps_o irremediable_a cause_n of_o disease_n and_o of_o death_n or_o have_v record_v the_o history_n of_o some_o poison_n whereof_o the_o true_a antidote_n be_v yet_o unknown_a uncommon_a notion_n about_o disease_n may_v serve_v to_o enlarge_v the_o physician_n mind_n and_o excite_v his_o attention_n and_o curiosity_n and_o beside_o that_o they_o may_v keep_v he_o from_o too_o obstinate_o persist_v in_o the_o use_n of_o receive_a medicine_n though_o unsuccessfull_a upon_o a_o supposition_n that_o the_o disease_n can_v have_v no_o other_o cause_n than_o those_o wont_a to_o be_v assign_v it_o by_o classic_a author_n beside_o this_o i_o say_v i_o do_v not_o despair_v but_o that_o either_o the_o sagacity_n or_o fortune_n of_o this_o inquisitive_a age_n or_o at_o least_o of_o posterity_n may_v by_o the_o blessing_n of_o god_n be_v happy_a enough_o to_o find_v proper_a remedy_n even_o for_o those_o disease_n that_o proceed_v from_o subterranean_a effluvia_fw-la when_o once_o by_o proper_a sign_n they_o shall_v be_v distinct_o discover_v of_o which_o power_n of_o appropriate_v remedy_n i_o have_v know_v some_o instance_n as_o to_o the_o very_a bad_a symptom_n produce_v by_o antimonial_a and_o some_o other_o mineral_n fume_n some_o of_o the_o point_n discourse_v of_o under_o the_o four_o proposition_n be_v of_o affinity_n enough_o to_o paradox_n to_o have_v need_n of_o be_v illustrate_v or_o confirm_v by_o observation_n and_o experiment_n and_o therefore_o have_v accidental_o retrieve_v some_o of_o this_o last_o name_v sort_n i_o shall_v venture_v to_o subjoin_v they_o as_o a_o specimen_fw-la though_o without_o transition_n or_o application_n but_o just_a as_o i_o find_v they_o throw_v together_o in_o one_o loose_a sheet_n wherein_o i_o light_v on_o they_o but_o it_o be_v time_n to_o conclude_v with_o the_o recital_n of_o the_o promise_a experiment_n which_o i_o will_v immediate_o do_v but_o that_o i_o hold_v it_o fit_a to_o premise_v by_o way_n of_o introduction_n to_o they_o that_o i_o hope_v the_o thing_n hitherto_o discourse_v will_v appear_v much_o the_o more_o probable_a if_o we_o shall_v prove_v by_o experiment_n that_o which_o seem_v much_o less_o likely_a than_o any_o thing_n we_o have_v above_o deliver_v namely_o that_o metal_n complete_o form_v and_o malleable_a may_v be_v elevate_v into_o the_o air_n and_o that_o perhaps_o without_o any_o great_a violence_n of_o fire_n in_o the_o form_n of_o exhalation_n and_o vapour_n the_o single_o invisible_a corpuscle_n still_o retain_v their_o metalline_a nature_n this_o at_o least_o as_o to_o some_o metal_n i_o have_v endeavour_v to_o prove_v in_o another_o tract_n entitle_v a_o paradox_n about_o the_o fuel_n of_o flame_n but_o because_o that_o discourse_n be_v never_o publish_v i_o will_v here_o set_v down_o two_o or_o three_o experiment_n not_o mention_v that_o i_o remember_v in_o it_o which_o i_o do_v the_o more_o willing_o because_o it_o may_v be_v a_o thing_n of_o no_o small_a moment_n in_o physic_n if_o it_o be_v show_v that_o fix_v and_o solid_a body_n such_o as_o metal_n be_v may_v by_o art_n be_v reduce_v into_o such_o minute_n corpuscle_n that_o without_o lose_v their_o nature_n and_o all_o their_o property_n they_o may_v become_v part_n of_o fume_n or_o perhaps_o of_o invisible_a vapour_n or_o even_o of_o flame_n itself_o particular_n belong_v to_o the_o ivth_o proposition_n exper._n i._n we_o take_v three_o part_n or_o pound_n of_o dantsic_n vitriol_n which_o be_v blue_a and_o somewhat_o partake_v of_o copper_n and_o two_o part_n or_o pound_n of_o good_a sea-salt_n these_o be_v very_o well_o powder_v and_o mix_v be_v distil_v with_o a_o strong_a naked_a fire_n to_o force_v out_o all_o that_o can_v be_v drive_v over_o and_o by_o this_o mean_v we_o not_o only_o obtain_v a_o spirit_n of_o salt_n of_o a_o manifest_o bluish_a colour_n but_o there_o ascend_v also_o a_o considerable_a quantity_n of_o powder_n which_o be_v shake_v with_o the_o liquor_n settle_v at_o the_o bottom_n of_o it_o in_o the_o form_n of_o a_o powder_n which_o be_v judge_v to_o consist_v of_o corpuscle_n of_o a_o cupreous_a nature_n and_o perhaps_o also_o of_o some_o of_o a_o martial_a nature_n but_o i_o unhappy_o neglect_v the_o opportunity_n of_o examine_v this_o powder_n which_o come_v up_o in_o quantity_n enough_o to_o have_v serve_v for_o various_a trial_n exper._n ii_o by_o substitute_v english_a vitriol_n which_o be_v green_a and_o be_v much_o more_o abundant_a in_o iron_n than_o that_o of_o dantsic_n and_o proceed_v in_o other_o respect_v as_o in_o the_o former_a process_n we_o obtain_v a_o very_a yellow_a spirit_n with_o a_o considerable_a quantity_n of_o a_o yellowish_a powder_n that_o be_v guess_v to_o be_v a_o kind_n of_o crocus_n martis_n exper._n iii_o we_o take_v very_o thin_a plate_n of_o copper_n and_o cast_v they_o into_o a_o retort_n upon_o a_o equal_a or_o a_o double_a weight_n for_o we_o do_v not_o always_o use_v the_o same_o of_o good_a mercury_n sublimate_n and_o lute_v on_o the_o receiver_n give_v a_o fire_n by_o degree_n for_o several_a hour_n by_o which_o mean_n we_o usual_o obtain_v some_o run_a mercury_n which_o seem_v to_o be_v very_o well_o purify_v and_o be_v perhaps_o also_o impregnate_v together_o with_o some_o sublimate_n that_o have_v not_o fasten_v upon_o the_o copper_n and_o at_o the_o bottom_n of_o the_o retort_n we_o have_v good_a store_n of_o a_o ponderous_a and_o brittle_a substance_n that_o do_v not_o look_v at_o all_o like_a a_o metal_n but_o rather_o like_o something_o of_o a_o gummous_a or_o resinous_n nature_n be_v also_o fusible_a and_o inflammable_a almost_o like_o seal_v wax_n this_o have_v not_o opportunity_n to_o prosecute_v the_o experiment_n at_o home_n i_o put_v into_o the_o hand_n of_o a_o industrious_a physician_n that_o be_v earnest_a with_o i_o to_o impart_v to_o he_o the_o process_n and_o let_v he_o pursue_v it_o for_o i_o he_o according_a to_o my_o direction_n expose_v this_o metalline_a rosin_n if_o i_o may_v so_o call_v it_o gross_o beat_v to_o the_o free_a air_n where_o it_o do_v according_a to_o expectation_n in_o a_o short_a time_n change_v colour_n and_o turn_v to_o a_o kind_n of_o verdegreece_n which_o be_v dissolve_v in_o good_a spirit_n of_o salt_n give_v a_o solution_n of_o a_o very_a lovely_a green_a colour_n this_o be_v slow_o distil_v ad_fw-la siccitatem_fw-la yield_v but_o a_o very_a weak_a and_o phlegmatic_a liquor_n and_o the_o caput_fw-la mortuum_n be_v again_o dissolve_v in_o fresh_a spirit_n and_o the_o menstruum_fw-la abstract_v as_o before_o this_o be_v do_v several_a time_n till_o the_o matter_n be_v so_o impregnate_v that_o the_o 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