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that_o with_o a_o due_a limitation_n it_o be_v most_o common_o true_a for_o though_o when_o the_o redness_n seem_v to_o be_v very_o near_o the_o ground_n and_o appear_v in_o somewhat_o narrow_a streak_n of_o a_o intense_a red_a it_o signify_v bad_a wether_n yet_o if_o the_o morning_n redness_n appear_v elevate_v in_o the_o air_n or_o sky_n especial_o if_o the_o wind_n be_v easterly_n it_o usual_o foretell_v a_o fair_a day_n some_o observation_n of_o capt._n james_n in_o his_o northern_a voyage_n mr._n j._n t._n and_o other_o february_n i_o practise_v some_o observation_n by_o the_o rise_n and_o set_v of_o the_o sun_n calculate_v the_o time_n of_o his_o rise_n and_o set_v by_o very_o true_a run_a glass_n as_o for_o our_o clock_n and_o watch_n notwithstanding_o we_o still_o keep_v they_o by_o the_o fireside_n in_o a_o chest_n wrap_v in_o clothes_n yet_o be_v they_o so_o freeze_v that_o they_o can_v not_o go_v my_o observation_n by_o these_o glass_n i_o compare_v with_o the_o star_n 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by_o we_o describe_v which_o be_v of_o a_o yellow_a colour_n we_o let_v fall_v some_o file_n of_o copper_n and_o stop_v the_o glass_n well_o we_o draw_v a_o tincture_n which_o according_a to_o expectation_n be_v manifest_o green_a but_o not_o of_o the_o pleasant_a and_o most_o transparent_a sort_n of_o green_a liquor_n then_o suffer_v the_o viol_n to_o rest_v in_o a_o window_n for_o many_o day_n we_o observe_v that_o the_o liquor_n do_v then_o but_o slow_o return_v to_o a_o yellow_a colour_n which_o when_o it_o have_v acquire_v without_o any_o mixture_n of_o greenness_n we_o open_v the_o viol_n for_o a_o very_a little_a while_n to_o let_v in_o the_o air_n and_o then_o stop_v it_o well_o again_o the_o admit_a air_n quick_o begin_v to_o change_v the_o surface_n of_o the_o liquor_n into_o a_o green_a colour_n which_o though_o slow_o extend_v itself_o downward_o till_o it_o have_v tinge_v the_o whole_a liquor_n this_o colour_n afterward_o by_o long_o stand_v do_v by_o degree_n grow_v to_o 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will_v not_o only_o gain_v but_o lose_v colour_n in_o cold_a wether_n and_o so_o it_o will_v also_o do_v in_o warm_a but_o on_o michaelmas-day_n i_o find_v it_o to_o have_v attain_v a_o deep_a blue_n and_o though_o since_o it_o have_v be_v now_o and_o then_o somewhat_o more_o dilute_a yet_o during_o all_o the_o past_a month_n of_o october_n i_o remember_v not_o to_o have_v see_v it_o any_o thing_n mere_a colourless_a and_o this_o day_n be_v the_o first_o of_o november_n i_o find_v it_o to_o have_v resume_v a_o high_a colour_n though_o a_o viol_n with_o a_o glass_n stopple_n which_o have_v for_o many_o week_n stand_v just_a by_o it_o and_o former_o do_v divers_a time_n correspond_v with_o it_o in_o its_o change_n have_v continue_v all_o the_o last_o month_n of_o a_o very_a pale_a blue_n without_o either_o deepn_v its_o colour_n or_o grow_v quite_o colourless_a a_o inquisitive_a gentleman_n of_o my_o acquaintance_n be_v ask_v by_o i_o about_o a_o mountain_n in_o wales_n call_v ______o 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neighbour_a mountain_n almost_o all_o the_o stone_n that_o be_v expose_v to_o the_o air_n undergo_v the_o like_a change_n and_o within_o a_o few_o year_n be_v blanch_v have_v put_v some_o mercurius_n sublimatus_fw-la dalcis_fw-la and_o vitriolum_fw-la romanum_fw-la tie_v up_o in_o several_a paper_n apart_o into_o one_o box_n at_o the_o end_n of_o twenty_o two_o month_n i_o find_v the_o sublimate_n mercury_n whole_o change_v into_o a_o substance_n so_o like_o antimony_n that_o some_o not_o ignorant_a of_o the_o materia_fw-la medica_fw-la have_v take_v it_o for_o the_o same_o and_o the_o superficies_n only_o of_o the_o vitriol_n have_v acquire_v the_o same_o colour_n but_o be_v not_o at_o all_o alter_v within_o this_o from_o a_o credible_a relator_n title_n xxxvi_o of_o the_o