any_o two_o of_o the_o parallel_n imagine_v in_o your_o in_o inde_fw-la and_o estimate_n with_o your_o eye_n another_o parallel_n through_o that_o point_n between_o those_o two_o parallel_n keep_v still_o the_o same_o distance_n from_o each_o of_o they_o as_o in_o the_o first_o of_o the_o three_o former_a example_n the_o circle_n of_o the_o sun_n course_n upon_o the_o 11._o of_o august_n shall_v be_v the_o very_a sixth_o circle_n above_o the_o equinoctial_a towards_o the_o centre_n in_o example_n 2._o the_o circle_n of_o the_o sun_n course_n upon_o the_o 24._o of_o march_n shall_v be_v a_o imaginary_a circle_n between_o the_o lecond_n and_o three_o parallel_n still_o keep_v a_o half_a of_o that_o space_n and_o one_o five_o part_n more_o of_o the_o rest_n from_o the_o second_o in_o example_n 3_o the_o circle_n of_o the_o sun_n course_n upon_o the_o 13._o of_o novemb_n shall_v be_v a_o imaginary_a circle_n between_o the_o ten_o and_o eleven_o parallel_v below_o the_o equinoctial_a still_o keep_v one_o quarter_n of_o that_o space_n from_o the_o ten_o four_o use_n to_o find_v the_o rise_n and_o set_v of_o the_o sun_n every_o day_n seek_v out_o as_o be_v last_o show_v the_o imaginary_a circle_n or_o parallel_v of_o the_o sun_n course_n for_o that_o day_n and_o mark_v the_o point_n where_o it_o meet_v with_o the_o horizon_n both_o on_o the_o east_n and_o west_n side_n for_o that_o be_v the_o very_a point_n of_o the_o sun_n rise_v and_o set_v that_o same_o day_n and_o the_o hour_n line_n which_o be_v on_o both_o side_n or_o it_o by_o proportion_v the_o distance_n reasonable_o according_a to_o 15._o minute_n for_o the_o quarter_n of_o the_o hour_n will_v show_v the_o hour_n of_o the_o sun_n rise_v on_o the_o east_n side_n &_o the_o sun_n set_v on_o the_o west_n side_n v._o use_n to_o know_v the_o reason_n and_o manner_n of_o the_o intrease_n and_o decrease_v of_o the_o day_n &_o night_n throughout_o the_o whole_a year_n when_o the_o sun_n be_v in_o the_o equinoctial_a it_o rise_v and_o set_v at_o 6._o a_o clock_n for_o in_o the_o instrument_n the_o intersection_n of_o the_o equinoctial_a and_o the_o ecliptic_a with_o the_o horizon_n be_v in_o the_o six_o a_o clock_n circle_n on_o both_o side_n but_o if_o the_o sun_n be_v out_o of_o the_o equinoctial_a decline_a towards_o the_o north_n the_o intersection_n of_o the_o parallel_n of_o the_o sun_n with_o the_o horizon_n be_v before_o six_o in_o the_o morning_n and_o after_o 6._o in_o the_o evening_n and_o the_o diurnal_a arch_n great_a than_o 12._o hour_n and_o so_o much_o more_o great_a the_o great_a the_o northern_a declination_n be_v again_o if_o the_o sun_n be_v decline_v towards_o the_o south_n the_o intersection_n of_o the_o parallel_n of_o the_o sun_n with_o the_o horizon_n be_v after_o six_o in_o the_o morning_n and_o before_o six_o in_o the_o evening_n and_o the_o diurnal_a arch_n lesser_a than_o 12._o hour_n and_o by_o so_o much_o lesser_a the_o great_a the_o southern_a declination_n be_v and_o in_o those_o place_n of_o the_o ecliptic_a in_o which_o the_o sun_n most_o speedy_o change_v his_o declination_n the_o length_n also_o of_o the_o day_n be_v most_o alter_v and_o where_o the_o ecliptic_a go_v most_o parallel_n to_o the_o equinoctial_a change_v the_o declination_n but_o little_o alter_v as_o for_o example_n when_o the_o sun_n be_v near_o unto_o the_o aequinoctial_a on_o both_o side_n the_o day_n increase_n and_o also_o decrease_v sudden_o and_o apace_o because_o in_o those_o place_n the_o ecliptic_a incline_v to_o the_o equinoctial_a in_o a_o manner_n like_o a_o straight_a line_n make_v sensible_a declination_n again_o when_o the_o sun_n be_v near_o his_o great_a declination_n as_o in_o the_o height_n of_o summer_n and_o the_o depth_n of_o winter_n the_o day_n keep_v for_o a_o good_a time_n as_o it_o be_v at_o one_o stay_v because_o in_o these_o place_n the_o ectiptic_a be_v in_o a_o manner_n parallel_v to_o the_o equinoctial_a the_o length_n of_o the_o day_n 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imaginary_a circle_n or_o parallel_v of_o the_o sun_n course_n and_o the_o point_n of_o that_o circle_n in_o the_o horizon_n on_o the_o east_n and_o west_n side_n cut_v the_o degree_n of_o the_o amplitude_n ortive_a and_o occasive_a vii_o use_v to_o find_v the_o length_n of_o every_o day_n and_o night_n double_o the_o hour_n of_o the_o sun_n set_v and_o you_o shall_v have_v the_o length_n of_o the_o day_n and_o double_v the_o hour_n of_o the_o sun_n rise_v and_o you_o shall_v have_v the_o length_n of_o the_o night_n viii_o use_v to_o find_v the_o true_a place_n of_o the_o sun_n upon_o the_o dial_n that_o be_v the_o point_n of_o the_o instrument_n which_o answer_v to_o the_o place_n of_o the_o sun_n in_o the_o heaven_n at_o any_o time_n which_o be_v the_o very_a ground_n of_o all_o the_o question_n follow_v if_o the_o dial_n be_v fix_v upon_o a_o post_n look_v what_o a_o clock_n it_o be_v by_o the_o outward_a dial_n that_o be_v look_v what_o hour_n and_o part_n of_o hour_n the_o shadow_n of_o the_o slant_v edge_n of_o the_o stile_n show_v in_o the_o outward_a limb_n then_o behold_v the_o shadow_n of_o the_o upright_a edge_n and_o mark_v what_o point_n thereof_o be_v upon_o that_o very_a hour_n and_o part_n in_o the_o inner_a dial_n among_o the_o parallel_n that_o point_n be_v the_o true_a place_n of_o the_o sun_n at_o the_o same_o instant_n if_o the_o dial_n be_v not_o fix_v and_o you_o have_v a_o meridian_n line_v note_v in_o any_o window_n where_o the_o sun_n shine_v place_n the_o meridian_n of_o your_o dial_n upon_o the_o meridian_n line_n give_v so_o that_o the_o top_n of_o the_o stile_n may_v point_v into_o the_o north_n and_o so_o the_o dial_n be_v as_o it_o be_v fix_v wherefore_o by_o the_o former_a rule_n you_o may_v find_v the_o place_n of_o the_o sun_n upon_o it_o if_o the_o dial_n be_v not_o fix_v neither_o you_o have_v a_o meridian_n line_n but_o you_o know_v the_o true_a hour_n of_o the_o day_n exact_o hold_v the_o dyal_a even_o and_o parallel_v 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that_o which_o have_v here_o be_v teach_v concern_v the_o find_v out_o the_o sun_n true_a place_n in_o the_o dyal_a ought_v perfect_o to_o be_v understand_v that_o it_o may_v be_v ready_o and_o dexterous_o practise_v for_o upon_o the_o true_a performance_n thereof_o depend_v all_o that_o follow_v ix_o use_v to_o find_v the_o hour_n of_o the_o day_n if_o the_o dial_n be_v fasten_v upon_o a_o post_n the_o hour_n by_o the_o outward_a dial_n or_o limb_n be_v know_v of_o every_o one_o &_o the_o upright_a shadow_n in_o the_o sun_n parallel_n or_o diurnal_a arch_n will_v also_o show_v the_o very_a same_o hour_n but_o if_o the_o dial_n be_v loose_a either_o hold_v it_o or_o set_v it_o parallel_v to_o the_o horizon_n with_o the_o stile_n point_v into_o the_o north_n and_o move_v it_o gentle_o every_o way_n until_o the_o hour_n show_v in_o both_o dial_n exact_o agree_v or_o which_o be_v all_o one_o find_v out_o the_o true_a place_n of_o the_o sun_n upon_o the_o dial_n as_o be_v teach_v in_o 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then_o follow_v with_o your_o eye_n the_o upright_a shadow_n in_o a_o straight_a line_n till_o it_o cut_v the_o horizon_n for_o the_o degree_n in_o which_o the_o point_n of_o intersection_n be_v shall_v show_v how_o far_o the_o sun_n azumith_n be_v distant_a from_o the_o east_n and_o west_n point_n and_o the_o compliment_n thereof_o unto_o 90._o shall_v give_v the_o distance_n thereof_o from_o the_o meridian_n xii_o use_v to_o find_v out_o the_o declination_n of_o any_o wall_n upon_o which_o the_o sun_n shine_v that_o it_o how_o far_o that_o wall_n swerve_v from_o the_o north_n or_o south_n either_o eastward_o or_o westward_o take_v a_o board_n have_v one_o straight_o edge_n &_o a_o line_n strike_v perpendicular_a upon_o it_o apply_v the_o straight_a edge_n unto_o the_o wall_n at_o what_o time_n the_o sun_n shine_v upon_o it_o hold_v the_o board_n parallel_n to_o the_o horizon_n set_v the_o dyal_a thereon_o &_o move_v it_o gentle_o every_o way_n until_o the_o same_o hour_n and_o minute_n be_v show_v in_o both_o dial_n and_o so_o let_v it_o stand_v then_o if_o the_o dyal_a have_v one_o of_o the_o side_n parallel_v to_o the_o meridian_n strike_v a_o line_n along_o that_o side_n upon_o the_o board_n cross_v the_o perpendicular_a or_o else_o with_o a_o bodkin_n make_v a_o point_n upon_o the_o board_n at_o each_o end_n of_o the_o meridian_n and_o take_v away_o the_o instrument_n from_o the_o board_n and_o the_o board_n from_o the_o wall_n lay_v a_o ruler_n to_o those_o two_o point_n &_o draw_v a_o line_n cross_v the_o perpendicular_a for_o the_o angle_n which_o that_o line_n make_v with_o the_o perpendicular_a be_v the_o angle_n of_o the_o declination_n of_o the_o wall_n and_o if_o it_o be_v a_o right_a angle_n the_o wall_n be_v exact_o east_n or_o west_n but_o if_o that_o line_n be_v parallel_n to_o the_o perpendicular_a the_o wall_n be_v direct_a north_n or_o south_n without_o any_o declination_n at_o all_o you_o may_v also_o find_v out_o the_o declination_n of_o a_o wall_n if_o the_o dial_n be_v fix_v on_o a_o post_n not_o very_o far_o from_o that_o wall_n in_o this_o manner_n your_o board_n be_v apply_v to_o the_o wall_n as_o be_v show_v hang_v up_o a_o thread_n with_o a_o plummet_n so_o that_o the_o shadow_n of_o the_o thread_n may_v upon_o the_o board_n across_o the_o perpendicular_a line_n make_v two_o prick_n in_o the_o shadow_n &_o run_v instant_o to_o the_o dial_n and_o look_v the_o horizontall_a distance_n of_o the_o sun_n azumith_n or_o upright_a shadow_n from_o the_o meridian_n then_o through_o the_o two_o prick_n draw_v a_o line_n cross_v the_o perpendicular_a and_o upon_o the_o point_n of_o the_o intersection_n make_v a_o circle_n aequal_a to_o the_o horizon_n of_o your_o instrument_n in_o which_o circle_n you_o shall_v from_o the_o line_n through_o the_o two_o prick_n measure_v the_o horizontall_a distance_n of_o the_o upright_a shadow_n or_o azumith_n from_o the_o meridian_n that_o way_n towards_o which_o the_o meridian_n be_v draw_v a_o line_n out_o of_o the_o centre_n to_o the_o end_n of_o that_o arch_n measure_v and_o the_o angle_n which_o this_o last_o line_n make_v with_o the_o perpendicular_a shall_v be_v equal_a to_o the_o declination_n of_o the_o wall_n xiii_o use_v how_o to_o place_v the_o dial_n upon_o a_o post_n without_o any_o other_o direction_n but_o itself_o set_a the_o dial_n upon_o the_o post_n with_o the_o stile_n into_o the_o north_n as_o never_o as_o you_o can_v guess_v then_o move_v it_o this_o way_n and_o that_o way_n till_o the_o same_o hour_n and_o minute_n be_v show_v both_o in_o the_o outward_a &_o inward_a dial_n by_o the_o several_a shadow_n as_o have_v be_v already_o teach_v for_o then_o the_o dyal_a stand_v in_o its_o true_a situation_n wherefore_o let_v it_o be_v nail_v down_o in_o that_o very_a place_n xiiii_o use_v to_o find_v the_o height_n of_o the_o sun_n at_o high_a noon_n every_o day_n seek_v out_o the_o diurnal_a arch_n or_o parallel_v of_o the_o sun_n course_n for_o 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altitude_n above_o the_o horizon_n at_o that_o time_n and_o by_o this_o mean_v you_o may_v find_v the_o height_n of_o the_o sun_n above_o the_o horizon_n at_o every_o hour_n through_o out_o the_o whole_a year_n for_o the_o make_n of_o ring_n and_o cylinder_n and_o other_o instrument_n which_o be_v use_v to_o show_v the_o hour_n of_o the_o day_n xvi_o use_v the_o height_n of_o the_o sun_n be_v give_v to_o find_v out_o the_o hour_n or_o what_o it_o be_v a_o clock_n this_o be_v the_o converse_n of_o the_o former_a seek_v therefore_o in_o the_o semidiameter_n divide_v the_o height_n of_o the_o sun_n give_v and_o with_o a_o pair_n of_o compass_n set_v one_o foot_n in_o the_o centre_n and_o the_o other_o at_o that_o height_n apply_v the_o same_o distance_n unto_o the_o diurnal_a arch_n or_o parallel_v of_o the_o sun_n for_o that_o day_n for_o that_o point_n of_o the_o diurnal_a arch_n upon_o which_o that_o same_o distance_n shall_v light_v be_v the_o true_a place_n of_o the_o sun_n upon_o the_o dyal_a and_o show_v among_o the_o hour_n line_n the_o true_a time_n of_o the_o day_n xvii_o use_v consideration_n for_o the_o use_n of_o the_o instrument_n in_o the_o night_n in_o such_o question_n as_o concern_v the_o night_n or_o the_o time_n before_o sun_n rise_v and_o after_o sun_n set_v the_o instrument_n represent_v the_o low_a hemisphere_n wherein_o the_o southern_a pole_n be_v elevate_v and_o therefore_o the_o parallel_n which_o be_v above_o the_o aequinoctial_a towards_o the_o centre_n shall_v be_v for_o the_o southern_a or_o winter_n parallel_n and_o those_o beneath_o the_o aequinoctial_a for_o the_o northern_a or_o summer_n parallel_n and_o the_o east_n shall_v be_v account_v for_o west_n and_o the_o west_n for_o east_n altogether_o contrary_a to_o that_o which_o be_v before_o when_o the_o instrument_n represent_v the_o upper_a hemisphere_n xviii_o use_v to_o find_v how_o many_o degree_n the_o sun_n be_v under_o the_o horizon_n at_o any_o time_n of_o the_o night_n seek_v the_o declination_n of_o the_o sun_n for_o the_o day_n propose_v by_o use_v ii_o and_o at_o the_o same_o declination_n on_o the_o contrary_a side_n imagine_v a_o parallel_n for_o the_o sun_n that_o night_n and_o mark_v what_o point_n of_o it_o be_v in_o the_o very_a hour_n &_o minute_n propose_v and_o with_o a_o pair_n of_o compass_n set_v one_o foot_n in_o the_o centre_n and_o the_o other_o in_o that_o point_n of_o the_o parallel_n apply_v that_o same_o distance_n unto_o the_o semidiameter_n divide_v for_o that_o measure_n shall_v show_v the_o degree_n of_o the_o sun_n depression_n below_o the_o horizon_n at_o that_o time_n xix_o use_v to_o find_v out_o the_o length_n of_o the_o crepusculum_fw-la or_o twilight_n every_o day_n seek_v the_o declination_n of_o the_o sun_n for_o the_o day_n propose_v by_o use_v ii_o and_o at_o the_o same_o declination_n on_o the_o contrary_a side_n imagine_v a_o parallel_n for_o the_o sun_n that_o night_n and_o with_o a_o pair_n of_o compass_n set_v one_o foot_n in_o the_o centre_n and_o the_o other_o at_o 72._o degree_n upon_o the_o semidiameter_n divide_v apply_v that_o same_o distance_n unto_o the_o sun_n nocturnal_a parallel_n for_o that_o point_n of_o the_o parallel_n upon_o which_o that_o same_o distance_n shall_v light_v sheweth_z among_o the_o hour_n line_n the_o beginning_n of_o the_o twilight_n in_o the_o morning_n or_o the_o end_n of_o the_o twilight_n in_o the_o evening_n xx._n use_v if_o the_o day_n of_o the_o month_n be_v not_o know_v to_o find_v it_o out_o by_o the_o dial_n for_o the_o work_n of_o this_o question_n either_o the_o dial_n must_v be_v fix_v right_o on_o a_o post_n or_o else_o you_o must_v have_v a_o true_a meridian_n line_n draw_v in_o some_o window_n where_o the_o sun_n shine_v wherefore_o suppose_v the_o dial_n to_o be_v just_o set_v either_o upon_o the_o post_n or_o upon_o the_o meridian_n look_v what_o a_o clock_n be_v it_o by_o the_o outward_a dyal_a and_o observe_v what_o point_n of_o the_o upright_a shadow_n fall_v upon_o the_o very_a same_o minute_n in_o the_o inner_a dial_n and_o through_o that_o same_o point_n imagine_v a_o parallel_n circle_n for_o the_o sun_n course_n that_o imaginary_a circle_n in_o the_o ecliptic_a shall_v cut_v the_o day_n of_o the_o month_n these_o instrumental_a dial_n be_v make_v in_o brass_n by_o elias_n allen_n dwell_v over_o against_o st._n clement_n church_n without_o temple-bar_n finis_fw-la
the_o description_n and_o use_n of_o the_o double_a horizontall_a dial_n to_o the_o most_o noble_a and_o hopeful_a gentleman_n sr._n william_n howard_n knight_n of_o the_o bath_n and_o son_n to_o the_o right_n honourable_a and_o illustrious_a lord_n thomas_z earl_n of_o arundel_n and_o surrey_n earl_n marshal_z of_o england_n etc._n etc._n london_n print_v by_o m._n flesher_n mdcxxxii_o the_o description_n and_o use_v of_o the_o double_a horizontall_a dial_n there_o be_v upon_o the_o plate_n two_o several_a dial_n that_o which_o be_v outermost_a be_v a_o ordinary_a dyal_a divide_v into_o hour_n and_o quarter_n &_o every_o quarter_n into_o three_o part_n which_o be_v five_o minute_n apiece_o so_o that_o the_o whole_a hour_n be_v understand_v to_o contain_v 60._o minute_n and_o for_o this_o dial_n the_o shadow_n of_o the_o upper_a oblique_a or_o slant_v edge_n of_o the_o stile_n or_o cock_n do_v serve_v the_o other_o dyal_a which_o be_v within_o be_v the_o projection_n of_o the_o upper_a hemisphere_n upon_o the_o plain_a of_o the_o horizon_n the_o horizon_n itself_o be_v understand_v to_o be_v the_o innermost_a circle_n of_o the_o limb_n and_o be_v divide_v on_o both_o side_n from_o the_o point_n of_o east_n and_o west_n into_o degree_n note_v with_o 10.20.30_o etc._n etc._n as_o far_o as_o need_n require_v and_o the_o centre_n of_o the_o instrument_n be_v the_o zenith_n or_o vertical_a point_n within_o the_o horizon_n the_o middle_n straight_a line_n point_v north_n and_o south_n upon_o which_o the_o stile_n stand_v be_v the_o meridian_n or_o twelve_o a_o clock_n line_n and_o the_o other_o short_a arch_v line_n on_o both_o side_n of_o it_o be_v the_o hour_n line_n distinguish_v according_o by_o their_o figure_n and_o be_v divide_v into_o quarter_n by_o the_o small_a line_n draw_v between_o they_o every_o quarter_n contain_v 15._o minute_n the_o two_o arch_n which_o across_o the_o hour_n line_n meet_v on_o both_o side_n in_o the_o point_n of_o intersection_n of_o the_o six_o a_o clock_n line_n with_o the_o horizon_n be_v the_o two_o semicircle_n of_o the_o ecliptic_a or_o annual_a circle_n of_o the_o sun_n the_o upper_a of_o which_o arch_n serve_v for_o the_o summer_n half_a year_n and_o the_o low_a for_o the_o winter_n half_a year_n and_o be_v therefore_o divide_v into_o 365._o day_n which_o be_v also_o distinguish_v into_o twelve_o month_n with_o long_a line_n have_v their_o name_n set_v down_o and_o into_o ten_o and_o fift_v with_o short_a line_n and_o the_o rest_n of_o the_o day_n with_o prick_n as_o may_v plain_o be_v see_v in_o the_o dial_n and_o this_o be_v for_o the_o ready_a find_v out_o of_o the_o place_n of_o the_o sun_n every_o day_n and_o also_o for_o the_o show_v of_o the_o sun_n yearly_a motion_n because_o by_o this_o motion_n the_o sun_n go_v round_o about_o the_o heaven_n in_o the_o compass_n of_o a_o year_n make_v the_o four_o part_n or_o season_n thereof_o namely_o the_o spring_n in_o that_o quarter_n of_o the_o ecliptic_a which_o begin_v at_o the_o intersection_n on_o the_o east_n side_n of_o the_o dial_n &_o be_v therefore_o call_v the_o vernal_a intersection_n then_o the_o summer_n in_o that_o quarter_n of_o the_o ecliptic_a which_o begin_v at_o the_o intersection_n with_o the_o meridian_n in_o the_o high_a point_n next_o the_o zenith_n after_o that_o autumn_n in_o that_o quarter_n of_o the_o ecliptic_a which_o begin_v at_o the_o intersection_n on_o the_o west_n side_n of_o the_o dial_n and_o be_v therefore_o call_v the_o autumnal_a intersection_n and_o last_o the_o winter_n in_o that_o quarter_n of_o the_o ecleptic_a which_o begin_v at_o the_o intersection_n with_o the_o meridian_n in_o the_o low_a point_n next_o the_o horizon_n but_o beside_o this_o yearly_a motion_n the_o sun_n have_v a_o diurnal_a or_o daily_a motion_n whereby_o it_o make_v day_n and_o night_n with_o all_o the_o diversity_n and_o inaequality_n thereof_o which_o be_v express_v by_o those_o other_o circle_v draw_v across_o the_o hour_n line_n the_o middlemost_a whereof_o be_v grosser_n than_o the_o rest_n meet_v with_o the_o ecliptic_a in_o the_o point_n of_o the_o vernal_a and_o autumnal_a intersection_n be_v the_o aequinoctial_a and_o the_o rest_n on_o both_o side_n of_o it_o be_v call_v the_o parallel_n or_o diurnal_a arch_n of_o the_o sun_n the_o two_o outermost_a whereof_o be_v the_o tropic_n because_o in_o they_o the_o sun_n have_v his_o further_a digression_n or_o declination_n from_o the_o aequinoctial_a which_o be_v degree_n 23._o ½_n and_o thence_o begin_v again_o to_o return_v towards_o the_o equinoctial_a the_o upper_a of_o the_o two_o tropic_n in_o this_o our_o northern_a hemisphere_n be_v the_o tropic_a of_o cancer_n and_o the_o sun_n be_v in_o it_o be_v high_a into_o the_o north_n make_v the_o long_a day_n of_o summer_n and_o the_o low_a next_o the_o horizon_n be_v the_o tropic_a of_o capricorn_n and_o the_o sun_n be_v in_o it_o be_v low_a into_o the_o south_n make_v the_o short_a day_n of_o winter_n between_o the_o two_o tropic_n and_o the_o equinoctial_a infinite_a such_o parallel_n circle_n be_v understand_v to_o be_v contain_v for_o the_o sun_n in_o what_o point_n soever_o of_o the_o ecliptic_a it_o be_v carry_v describe_v by_o his_o lation_n a_o circle_n parallel_n to_o the_o equinoctial_a yet_o those_o parallel_n which_o be_v in_o the_o instrument_n though_o draw_v but_o to_o every_o second_o degree_n of_o declination_n may_v be_v sufficient_a to_o direct_v the_o eye_n in_o magine_v and_o trace_v out_o through_o every_o day_n of_o the_o whole_a year_n in_o the_o ecliptic_a a_o proper_a circle_n which_o may_v be_v the_o diurnal_a arch_n of_o the_o sun_n for_o that_o day_n for_o upon_o the_o right_a estimation_n of_o that_o imaginary_a parallel_n do_v the_o manifold_a use_n of_o this_o instrument_n especial_o rely_v because_o the_o true_a place_n of_o the_o sun_n all_o that_o day_n be_v in_o some_o part_n or_o point_n of_o that_o circle_n wherefore_o for_o the_o better_a conceive_v and_o bear_v in_o mind_n thereof_o every_o five_o parallel_n be_v herein_o make_v a_o little_o grosser_n than_o the_o rest_n for_o this_o inner_a dial_n serve_v the_o shadow_n of_o the_o upright_a edge_n of_o the_o stile_n which_o i_o therefore_o call_v the_o upright_a shadow_n and_o thus_o by_o the_o eye_n and_o view_v only_a to_o behold_v and_o comprehend_v the_o course_n of_o the_o sun_n throughout_o the_o whole_a year_n both_o for_o his_o annual_a and_o diurnal_a motion_n may_v be_v the_o first_o use_n of_o this_o instrument_n two_o use_n to_o find_v the_o declination_n of_o the_o sun_n every_o day_n look_v the_o day_n of_o the_o month_n propose_v in_o the_o ecliptic_a and_o mark_v how_o many_o degree_n the_o prick_n show_v that_o day_n be_v distant_a from_o the_o aequinoctial_a either_o on_o the_o summer_n or_o winter_n side_n viz._n north_n or_o south_n example_n 1._o what_o will_v the_o declination_n of_o the_o sun_n be_v upon_o the_o eleven_o day_n of_o august_n look_v the_o eleven_o day_n of_o august_n &_o you_o shall_v find_v it_o in_o the_o sixth_o circle_n above_o the_o aequinoctial_a now_o because_o each_o parallel_n stand_v as_o have_v be_v say_v before_o for_o two_o degree_n the_o sun_n shall_v that_o day_n decline_v northwards_o 12._o degree_n example_n 2._o what_o declination_n have_v the_o sun_n upon_o the_o 24._o day_n of_o march_n look_v the_o 24._o day_n of_o march_n and_o you_o shall_v find_v it_o between_o the_o second_o &_o three_o northern_a parallel_n as_o it_o be_v a_o half_a and_o one_o five_o part_n of_o that_o distance_n from_o the_o second_o reckon_v therefore_o 4._o degree_n for_o the_o two_o circle_n and_o one_o degree_n for_o the_o half_a space_n so_o shall_v the_o sun_n declination_n be_v five_o degree_n and_o about_o one_o five_o part_n of_o a_o degree_n northward_o that_o same_o day_n example_n 3._o what_o declination_n have_v the_o sun_n upon_o the_o 13._o day_n of_o november_n look_v the_o 13._o day_n of_o novemb_n and_o you_o shall_v find_v it_o below_o the_o aequinoctial_a ten_o parallel_n and_o about_o one_o quarter_n which_o be_v 20._o degree_n and_o a_o half_a southward_a so_o much_o be_v the_o declination_n and_o according_a to_o these_o example_n judge_v of_o all_o the_o rest_n iii_o use_n to_o find_v the_o diurnal_a arch_n or_o circle_n of_o the_o sun_n course_n every_o day_n the_o sun_n every_o day_n by_o his_o motion_n as_o have_v be_v say_v describe_v a_o circle_n parallel_n to_o the_o equinoctial_a which_o be_v either_o one_o of_o the_o circle_n in_o the_o dial_n or_o somewhere_o between_o two_o of_o they_o first_o therefore_o seek_v the_o day_n of_o the_o month_n and_o if_o it_o fall_v upon_o one_o of_o those_o parallel_n that_o be_v the_o circle_n of_o the_o sun_n course_n that_o same_o day_n but_o if_o it_o fall_v between_o