Selected quad for the lemma: end_n

Word A Word B Word C Word D Occurrence Frequency Band MI MI Band Prominent
end_n line_n point_n straight_a 1,843 5 12.8557 5 true
View all documents for the selected quad

Text snippets containing the quad

ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A89305 Horlogiographia optica. Dialling universall and particular: speculative and practicall. In a threefold præcognita, viz. geometricall, philosophicall, and astronomicall: and a threefold practise, viz. arithmeticall, geometricall, and instrumentall. With diverse propositions of the use and benefit of shadows, serving to prick down the signes, declination, and azimuths, on sun-dials, and diverse other benefits. Illustrated by diverse opticall conceits, taken out of Augilonius, Kercherius, Clavius, and others. Lastly, topothesia, or, a feigned description of the court of art. Full of benefit for the making of dials, use of the globes, difference of meridians, and most propositions of astronomie. Together with many usefull instruments and dials in brasse, made by Walter Hayes, at the Crosse Daggers in More Fields. / Written by Silvanus Morgan. Morgan, Sylvanus, 1620-1693.; Goddard, John, fl. 1645-1671, engraver. 1652 (1652) Wing M2741; Thomason E652_16; ESTC R202919 57,946 133

There are 8 snippets containing the selected quad. | View original text

ponderosity_n or_o a_o centre_n of_o rotundity_n if_o it_o be_v a_o seem_a point_n that_o be_v increase_v or_o diminish_v according_a to_o the_o ocular_a aspect_n as_o be_v sometime_o near_o and_o sometime_o far_o from_o the_o thing_n in_o the_o visual_a line_n the_o thing_n be_v make_v more_o or_o less_o apparent_a a_o centre_n of_o magnitude_n be_v a_o equal_a distribution_n from_o that_o point_n a_o equality_n of_o distribution_n of_o the_o part_n give_v to_o each_o end_n alike_o and_o to_o each_o a_o like_a vicinity_n to_o that_o point_n or_o centre_n a_o centre_n of_o ponderosity_n be_v such_o a_o point_n in_o which_o a_o unequal_a thing_n hang_v in_o equi_fw-la libra_fw-la in_o a_o equal_a distribution_n of_o the_o weight_n though_o one_o end_n be_v long_o or_o big_a than_o the_o other_o of_o the_o quantity_n of_o the_o ponderosity_n a_o centre_n of_o rotundity_n be_v such_o a_o centre_n as_o be_v the_o centre_n of_o a_o globe_n or_o circle_n be_v equal_o distant_a from_o all_o place_n now_o the_o earth_n be_v to_o be_v understand_v to_o be_v such_o a_o centre_n as_o the_o centre_n of_o a_o globe_n or_o sphere_n be_v equal_o distant_a from_o the_o concave_a superficies_n of_o the_o firmament_n neither_o be_v it_o to_o be_v understand_v to_o be_v a_o centre_n as_o a_o point_n indivisible_a but_o either_o comparative_o or_o optical_o comparative_o in_o respect_n of_o the_o superior_a orb_n optical_o by_o reason_n of_o the_o far_a distance_n of_o the_o one_o from_o the_o earth_n as_o that_o the_o fix_a star_n be_v far_o distant_a seem_v by_o the_o weakness_n of_o the_o sense_n to_o be_v conceive_v as_o a_o centre_n indivisible_a when_o by_o the_o force_n and_o vigour_n of_o reason_n and_o demonstration_n they_o be_v find_v to_o exceed_v this_o globe_n of_o earth_n much_o in_o magnitude_n so_o that_o what_o our_o sense_n can_v apprehend_v must_v be_v comprehend_v by_o reason_n as_o in_o the_o circle_n of_o the_o celestial_a orb_n because_o they_o can_v be_v perceive_v by_o sense_n yet_o must_v necessary_o be_v imagine_v to_o be_v so_o whence_o it_o be_v observable_a that_o all_o sun_n dial_n though_o they_o stand_v on_o the_o surface_n of_o the_o earth_n do_v as_o true_o show_v the_o hour_n as_o if_o they_o stand_v in_o the_o centre_n chap_n iv._o declare_v what_o reason_n may_v move_v the_o philosopher_n and_o other_o to_o think_v the_o earth_n to_o be_v the_o centre_n and_o that_o the_o world_n move_v on_o a_o axis_fw-la circa_fw-la quem_fw-la convertitur_fw-la ocular_a observation_n be_v affirmative_a demonstration_n so_o that_o what_o be_v make_v plain_a by_o sense_n be_v apparent_a to_o reason_n hence_o it_o so_o happen_v that_o we_o imagine_v the_o earth_n to_o move_v as_o it_o be_v on_o a_o axis_fw-la because_o both_o by_o ocular_a and_o instrumental_a observation_n in_o respect_n that_o by_o the_o eye_n it_o be_v observe_v that_o one_o place_n of_o the_o sky_n be_v semper_fw-la apparens_fw-la neither_o make_v cosmical_a haeliacall_a or_o achronicall_a rise_n or_o set_v but_o still_o remain_v as_o a_o point_n as_o it_o be_v immovable_a about_o which_o the_o whole_a heaven_n be_v turn_v these_o yet_o be_v necessary_a to_o be_v imagine_v for_o the_o better_a demonstration_n of_o the_o ground_n of_o art_n for_o all_o man_n know_v the_o heaven_n to_o be_v support_v only_o by_o the_o providence_n of_o god_n thus_o much_o for_o the_o reason_n show_v why_o the_o world_n may_v be_v imagine_v to_o be_v turn_v on_o a_o axis_n the_o demonstration_n prove_v that_o the_o earth_n be_v the_o centre_n be_v thus_o not_o in_o maintain_v unlikely_a argument_n but_o verity_n of_o observation_n for_o all_o gnomon_n cast_v shadow_n on_o the_o face_n of_o the_o earth_n cast_v the_o like_a length_n or_o equality_n of_o shadow_n they_o make_v one_o and_o the_o same_o angle_n with_o the_o earth_n the_o sun_n be_v at_o one_o and_o the_o same_o angle_n of_o height_n to_o all_o the_o gnomon_n as_o in_o example_n let_v the_o earth_n be_v represent_v by_o the_o small_a circle_n within_o the_o great_a circle_n mark_v abcd_o and_o let_v a_o gnomon_n stand_v at_o e_o of_o the_o lesser_a circle_n who_o horizon_n be_v the_o line_n ac_o and_o let_v a_o other_o gnomon_n of_o the_o same_o length_n be_v set_v at_o i_o who_o horizon_n be_v represent_v by_o the_o line_n bd_o now_o if_o the_o sun_n be_v at_o equal_a angle_n of_o height_n above_o these_o two_o orison_n namely_o at_o 60_o degree_n from_o c_o to_o g_o and_o 60_o from_o b_o to_o f_o the_o gnomon_n shall_v give_v a_o like_a equality_n of_o shadow_n as_o in_o example_n be_v manifest_a now_o from_o the_o former_a appear_v that_o the_o earth_n be_v of_o no_o other_o form_n then_o round_o else_o can_v it_o not_o give_v equality_n of_o shadow_n neither_o can_v it_o be_v the_o centre_n to_o all_o the_o other_o inferior_a orb_n for_o if_o you_o grant_v not_o the_o earth_n to_o be_v the_o middle_n this_o must_v necessary_o follow_v that_o there_o be_v not_o equality_n of_o shadow_n for_o example_n let_v the_o great_a circle_n represent_v the_o heaven_n and_o the_o less_o the_o earth_n out_o of_o the_o centre_n of_o the_o great_a now_o the_o sun_n be_v above_o the_o horizon_n ac_o 60_o d._n and_o a_o gnomon_n at_o e_o cast_v his_o shadow_n from_o e_o to_o f_o and_o if_o the_o same_o gnomon_n of_o the_o same_o length_n do_v stand_v till_o the_o sun_n come_v to_o the_o opposite_a side_n of_o the_o horizon_n ac_o and_o the_o sun_n be_v 60_o degree_n above_o that_o horizon_n cast_v the_o shadow_n from_o e_o to_o h_o which_o be_v unequal_a in_o length_n the_o reason_n of_o which_o inequality_n prove_v that_o then_o it_o do_v not_o stand_v in_o the_o centre_n and_o the_o equality_n of_o the_o other_o prove_v that_o it_o be_v in_o the_o centre_n hence_o be_v also_o most_o forcible_o prove_v that_o the_o earth_n be_v complete_o round_a in_o the_o respect_n of_o the_o heaven_n as_o be_v show_v by_o the_o equality_n of_o shadow_n for_o if_o it_o be_v not_o round_o one_o and_o the_o same_o gnomon_n can_v not_o give_v one_o and_o the_o same_o shadow_n the_o earth_n be_v not_o complete_o round_a as_o in_o the_o ensue_a discourse_n and_o demonstration_n be_v more_o plain_o handle_v and_o make_v manifest_a and_o that_o the_o earth_n be_v round_o may_v appear_v first_o by_o the_o eclipse_n when_o the_o shadow_n of_o the_o earth_n appear_v on_o the_o body_n of_o the_o moon_n darken_n it_o in_o whole_a or_o in_o part_n and_o such_o be_v the_o body_n such_o be_v the_o shadow_n again_o it_o appear_v to_o be_v round_o by_o the_o orderly_a appear_n of_o the_o star_n for_o as_o man_n travel_v far_a north_n or_o south_n they_o discover_v new_a star_n which_o they_o see_v not_o before_o and_o lose_v the_o sight_n of_o they_o they_o do_v see_v as_o also_o by_o the_o rise_n or_o set_v of_o the_o sun_n or_o star_n which_o appear_v not_o at_o the_o same_o time_n to_o all_o country_n but_o by_o difference_n of_o meridian_n and_o by_o the_o different_a observation_n of_o eclipse_n appear_v soon_o to_o the_o easterly_a nation_n than_o those_o that_o be_v far_a west_n neither_o do_v the_o top_n of_o the_o high_a hill_n nor_o the_o sink_n of_o the_o low_a valley_n though_o they_o may_v seem_v to_o make_v the_o earth_n uneven_a yet_o compare_v with_o the_o whole_a greatness_n do_v not_o at_o all_o hinder_a the_o roundness_n of_o it_o and_o be_v no_o big_a than_o a_o point_n or_o pin_n head_n in_o comparison_n of_o the_o high_a heaven_n thus_o have_v run_v over_o the_o system_n of_o the_o great_a world_n now_o let_v we_o say_v something_o of_o the_o compendium_n thereof_o that_o be_v man_n chap_n v._o of_o man_n or_o the_o little_a world_n man_n be_v the_o perfection_n of_o the_o creation_n the_o glory_n of_o the_o creator_n the_o compendium_n of_o the_o world_n the_o lord_n of_o the_o creature_n he_o be_v true_o a_o cosmus_n of_o beauty_n who_o eye_n be_v the_o sun_n of_o his_o body_n by_o which_o he_o behold_v the_o never_o rest_a motion_n of_o the_o heaven_n contemplative_o to_o behold_v the_o place_n of_o motion_n the_o place_n of_o his_o eternal_a rest_n lord_n what_o be_v man_n that_o thou_o shall_v be_v so_o mindful_a of_o he_o or_o the_o son_n of_o man_n that_o thou_o so_o regard_v he_o thou_o have_v make_v a_o world_n of_o wonder_n in_o his_o face_n thou_o have_v make_v he_o to_o be_v a_o rational_a creature_n endow_v he_o with_o reason_n so_o that_o his_o intellect_n become_v his_o primum_fw-la mobile_a to_o set_v his_o action_n at_o work_n nevertheless_o man_n neither_o move_v nor_o reign_v in_o himself_o and_o therefore_o not_o for_o himself_o but_o be_v bear_v not_o to_o himself_o but_o for_o his_o country_n therefore_o he_o ought_v to_o employ_v
n_o w_n 67_o 30_o e_o by_o n_o 78_o 45_o w_n by_o n_n 78_o 45_o east_n 90_o 00_o west_n 90_o 00_o by_o which_o it_o appear_v that_o every_o point_n of_o the_o compass_n be_v distant_a from_o the_o meridian_n 11_o degree_n 15_o minute_n the_o three_o sort_n of_o plane_n be_v incline_v or_o rather_o recline_v who_o upper_a face_n behold_v the_o zenith_n and_o in_o that_o respect_n be_v call_v recline_v but_o if_o a_o dial_n be_v make_v on_o the_o nether_a side_n and_o thereby_o respect_v the_o horizon_n it_o be_v then_o call_v a_o incliner_n so_o that_o the_o one_o be_v the_o opposite_a to_o the_o other_o these_o plane_n be_v likewise_o accidental_o divide_v for_o they_o be_v either_o direct_a recliner_n recline_v from_o the_o direct_a point_n of_o east_n west_n north_n and_o south_n and_o in_o this_o sort_n happen_v the_o direct_a polar_a and_o equinoctial_a plane_n as_o infinite_a more_o according_a to_o the_o inclination_n or_o reclination_n of_o the_o plane_n or_o they_o be_v as_o erect_v plane_n do_v become_v decline_v recliner_n which_o look_v oblique_a to_o the_o cardinal_n part_n of_o the_o world_n and_o obtuse_o to_o the_o part_n they_o respect_v suppose_v a_o plane_n to_o fall_v backward_o from_o the_o zenith_n and_o by_o consequence_n it_o fall_v towards_o the_o horizon_n then_o that_o represent_v a_o recline_a plane_n such_o you_o shall_v you_o suppose_v the_o equinoctial_a circle_n in_o the_o figure_n to_o represent_v recline_v from_o the_o north_n southwards_o 51_o degree_n from_o the_o zenith_n or_o suppose_v the_o axis_n to_o represent_v a_o plane_n lie_v parallel_n to_o it_o which_o fall_v from_o the_o zenith_n northward_o recline_v 38_o degree_n one_o be_v equinoctial_a the_o other_o a_o polar_a plane_n but_o for_o the_o incline_a decliner_n you_o shall_v know_v they_o thus_o forasmuch_o as_o the_o horizon_n be_v the_o limiter_n of_o our_o sight_n and_o be_v cut_v at_o right_a angle_n represent_v the_o east_n west_n north_n and_o south_n point_v it_o may_v happen_v so_o that_o a_o plane_n may_v lie_v between_o two_o of_o these_o quarter_n in_o a_o accidental_a azimuth_n and_o so_o not_o behold_v one_o of_o the_o cardinal_n quarter_n be_v say_v to_o decline_v again_o the_o say_a plain_n may_v happen_v not_o to_o stand_v vertical_a which_o be_v either_o incline_v or_o recline_v and_o so_o be_v say_v to_o be_v incline_v decliner_n first_o because_o they_o make_v no_o right_a angle_n with_o the_o cardinal_n quarter_n second_o because_o they_o be_v not_o vertical_a or_o upright_a there_o be_v other_o polar_a plane_n which_o lie_v parallel_n to_o the_o pole_n under_o the_o meridian_n which_o may_v just_o be_v call_v meridian_n plain_n and_o these_o be_v erect_v direct_a east_n and_o west_n dial_n where_o the_o pole_n of_o the_o plane_n remain_v which_o plane_n if_o they_o recline_v be_v call_v position_n plane_n cut_v the_o horizon_n in_o the_o north_n and_o south_n point_v for_o circle_n of_o position_n be_v nothing_o but_o circle_n cross_v the_o horizon_n in_o those_o point_n chap_n iv._o show_v the_o find_v out_o of_o a_o meridian_n line_n after_o many_o way_n and_o the_o declination_n of_o a_o plane_n a_o meridian_n line_n be_v nothing_o else_o but_o a_o line_n who_o outmost_a end_n point_v due_a north_n and_o south_n and_o consequent_o lie_v under_o the_o meridian_n circle_n and_o the_o sun_n come_v to_o the_o meridian_n do_v then_o cast_v the_o shadow_n of_o all_o thing_n northward_o in_o our_o latitude_n so_o that_o a_o line_n draw_v through_o the_o shadow_n of_o any_o thing_n perpendicular_o eraise_v the_o sun_n be_v in_o the_o meridian_n that_o line_n so_o draw_v be_v a_o meridian_n line_n the_o use_n whereof_o be_v to_o place_v plane_n in_o a_o due_a situation_n to_o their_o point_n respective_a as_o in_o the_o definition_n of_o this_o circle_n i_o show_v there_o be_v accidental_a meridian_n as_o many_o as_o can_v be_v imagine_v between_o place_n and_o place_n which_o difference_n of_o meridian_n be_v the_o longitude_n or_o rather_o difference_n of_o longitude_n which_o be_v the_o space_n of_o two_o meridian_n which_o show_v why_o noon_n be_v soon_o to_o some_o then_o other_o the_o meridian_n may_v be_v find_v divers_a way_n as_o most_o common_o by_o the_o mariner_n compass_n but_o by_o reason_n the_o needle_n have_v a_o point_n attractive_a subject_n to_o error_n and_o so_o overthrow_v the_o labour_n i_o cease_v to_o speak_v any_o further_a it_o may_v be_v find_v in_o the_o night_n for_o when_o the_o star_n call_v aliot_n seem_v to_o be_v over_o the_o polestar_n they_o be_v then_o true_a north_n the_o manner_n of_o find_v it_o mr._n foster_n have_v plain_o lay_v down_o in_o his_o book_n of_o dial_v perform_v by_o a_o quadrant_n which_o be_v the_o four_o part_n of_o a_o circle_n be_v part_v into_o 90_o degree_n it_o may_v also_o be_v fouhd_v as_o master_n blundevile_n in_o his_o book_n for_o the_o sea_n teach_v be_v indeed_o a_o thing_n very_o necessary_a for_o the_o sea_n which_o way_n be_v thus_o strike_v a_o circle_n on_o a_o plain_a superficies_fw-la and_o raise_v a_o wire_n or_o such_o like_a in_o the_o centre_n to_o cast_v a_o shadow_n then_o observe_v in_o the_o forenoon_n when_o the_o shadow_n be_v so_o that_o it_o just_o touch_v the_o circumference_n or_o edge_n of_o the_o circle_n and_o there_o make_v a_o mark_n do_v so_o again_o in_o the_o afternoon_n and_o at_o the_o edge_n where_o the_o shadow_n go_v out_o make_v another_o mark_n between_o which_o two_o mark_n draw_v a_o line_n which_o part_n in_o half_a then_o from_o that_o middle_a point_n to_o the_o centre_n draw_v a_o line_n which_o be_v a_o true_a meridian_n or_o thus_o draw_v a_o great_a many_o circle_n concentrical_a one_o within_o another_o then_o observe_v by_o the_o circle_n about_o noon_n when_o the_o sun_n cast_v the_o short_a shadow_n and_o that_o then_o shall_v represent_v a_o true_a meridian_n the_o reason_n why_o you_o must_v observe_v the_o length_n of_o the_o shadow_n by_o circle_n and_o not_o by_o line_n be_v because_o if_o the_o sun_n have_v not_o attain_v to_o the_o true_a meridian_n it_o will_v cast_v its_o shadow_n from_o a_o line_n and_o so_o my_o eye_n may_v deceive_v i_o when_o as_o by_o circle_n the_o sun_n cast_v shadow_n round_o about_o still_o meet_v with_o one_o circumference_n or_o other_o and_o so_o we_o may_v observe_v diligent_o second_o it_o be_v prove_v that_o the_o shadow_n in_o the_o meridian_n be_v the_o short_a because_o the_o sun_n be_v near_o the_o vertical_a point_n three_o it_o be_v prove_v that_o it_o be_v a_o true_a meridian_n for_o this_o cause_n the_o sun_n as_o all_o other_o luminous_a body_n cast_v his_o shadow_n diametrical_o and_o so_o be_v in_o the_o south_n part_n cast_v his_o shadow_n northward_o and_o be_v therefore_o a_o true_a meridian_n but_o now_o to_o find_v the_o declination_n of_o a_o wall_n if_o it_o be_v a_o erect_a wall_n draw_v a_o perpendicular_a line_n but_o if_o it_o be_v a_o decline_a recline_a plane_n draw_v first_o a_o horizontal_a line_n and_o then_o draw_v a_o perpendicular_a to_o that_o and_o in_o the_o perpendicular_a line_n strike_v a_o style_n or_o small_a wire_n to_o make_v right_a angle_n with_o the_o plane_n then_o note_v when_o the_o shadow_n of_o the_o style_n fall_v in_o one_o line_n with_o the_o perpendicular_a and_o at_o that_o instant_n take_v the_o altitude_n of_o the_o sun_n and_o so_o get_v the_o azimuth_n reckon_v from_o the_o south_n for_o that_o be_v the_o true_a declination_n of_o the_o wall_n from_o the_o south_n the_o distance_n of_o the_o azimuth_n from_o the_o south_n or_o other_o point_n be_v mention_v in_o degree_n and_o minute_n in_o the_o three_o chapter_n in_o the_o definition_n of_o the_o several_a sort_n of_o plane_n or_o by_o hold_v the_o straight_a side_n of_o any_o thing_n against_o the_o wall_n as_o be_v the_o long_a square_n abcd_o who_o edge_n ab_o suppose_v to_o be_v hold_v to_o a_o wall_n and_o suppose_v again_o that_o you_o hold_v a_o three_o and_o plummet_n in_o your_o hand_n at_o e_o the_o sun_n shine_v and_o it_o cast_v shadow_v the_o line_n ef_o and_o at_o the_o same_o instant_n take_v the_o altitude_n of_o the_o sun_n thereby_o get_v the_o azimuth_n as_o be_v teach_v follow_v then_o from_o the_o point_n f_o as_o the_o centre_n of_o the_o horizon_n and_o from_o the_o line_n fe_o reckon_v the_o distance_n of_o the_o south_n which_o suppose_v i_o find_v the_o azimuth_n to_o be_v 60_o degree_n from_o the_o east_n or_o west_n by_o the_o proposition_n that_o be_v deliver_v in_o the_o end_n of_o this_o book_n and_o because_o there_o be_v a_o quadrant_n of_o a_o circle_n between_o the_o south_n and_o the_o east_n or_o west_n point_n i_o subtract_v the_o distance_n of_o the_o azimuth_n from_o 90_o
the_o morning_n hour_n and_o 6_o 7_o 8_o the_o evening_n and_o because_o the_o north_n pole_n be_v elevate_v above_o this_o plane_n 38_o deg._n 30_o min._n the_o axis_n must_v be_v from_o the_o centre_n according_a to_o that_o elevation_n point_v upward_o as_o the_o south_n do_v downward_o so_o as_o a_o be_v the_o zenith_n of_o the_o south_n c_o must_v be_v in_o the_o north_n the_o arithmetical_a calculation_n be_v the_o same_o with_o the_o former_a also_o a_o north_n plane_fw-la may_v show_v all_o the_o hour_n of_o the_o south_n by_o consideration_n of_o reflection_n for_o by_o optical_a demonstration_n it_o be_v prove_v that_o the_o angle_n of_o incidence_n be_v all_o one_o to_o that_o of_o reflection_n if_o any_o be_v ignorant_a thereof_o i_o purposely_o remit_v to_o teach_v it_o to_o whet_v the_o ingenious_a reader_n in_o labour_v to_o find_v it_o the_o figure_n of_o a_o direct_a east_n and_o west_n dial_n for_o the_o latitude_n of_o london_n 51_o deg._n 30_o min._n east_n dial_n west_n dial_n chap_n iv._o show_v the_o make_n of_o the_o prime_n vertical_a plane_n that_o be_v a_o direct_a east_n or_o west_n dial_n for_o the_o effect_n of_o this_o dial_n first_o draw_v the_o line_n ad_fw-la on_o one_o end_n thereof_o draw_v the_o circle_n in_o the_o figure_n represent_v the_o equator_n then_o draw_v two_o touch_n line_n to_o the_o equator_n parallel_n to_o the_o line_n ad_fw-la these_o be_v they_o on_o which_o the_o hour_n be_v mark_v divide_v the_o equator_n in_o the_o low_a semicircle_n in_o 12_o equal_a part_n then_o apply_v a_o ruler_n to_o the_o centre_n through_o each_o part_n and_o where_o it_o touch_v the_o line_n of_o contingence_n make_v mark_n from_o each_o touch_n point_n draw_v line_n to_o the_o opposite_a touch_n point_n which_o be_v the_o parallel_n of_o the_o hour_n and_o at_o the_o end_n of_o those_o line_n mark_v the_o easterly_a hour_n from_o 6_o to_o 11_o and_o of_o the_o west_n from_o 1_o to_o 6._o these_o plane_n as_o i_o tell_v you_o want_v the_o meridian_n hour_n because_o it_o be_v parallel_a to_o the_o meridian_n now_o for_o the_o place_n of_o the_o east_n dial_n number_n the_o elevation_n of_o the_o axis_n to_o wit_n the_o arch_n dc_o from_o the_o line_n of_o the_o equator_n to_o wit_n the_o line_n ad_fw-la and_o in_o the_o west_n dial_n number_n the_o elevation_n to_o b_o fasten_v a_o plummet_n and_o three_o in_o the_o centre_n a_o and_o hold_v it_o so_o that_o the_o plummet_n may_v fall_v on_o the_o line_n ac_o for_o the_o east_n dial_n and_o ab_o for_o the_o west_n dial_n and_o then_o the_o line_n ad_fw-la be_v parallel_n to_o the_o equator_n and_o the_o dial_n in_o its_o right_a position_n and_o thus_o the_o west_n as_o well_o as_o east_n for_o according_a to_o the_o say_n contrariorum_fw-la eadem_fw-la est_fw-la doctrina_fw-la contrary_n have_v one_o manner_n of_o doctrine_n here_o you_o may_v perceive_v the_o use_n of_o tangent_fw-la line_n for_o it_o be_v evident_a that_o every_o hour_n distance_n be_v ●●t_v the_o tangent_fw-la of_o the_o equinoctial_a distance_n the_o arithmetical_a calculation_n 1_o have_v draw_v a_o line_n for_o the_o hour_n of_o 6_o whether_o east_n or_o west_n as_o the_o tangent_fw-la of_o the_o hour_n distance_n be_v to_o the_o radius_fw-la so_o be_v the_o distance_n of_o the_o hour_n from_o 6_o to_o the_o height_n of_o the_o style_n 2_o as_o the_o radius_fw-la be_v to_o the_o height_n of_o the_o style_n so_o be_v the_o tangent_fw-la of_o the_o hour_n distance_n from_o 6_o to_o the_o distance_n of_o the_o same_o hour_n from_o the_o substyle_n the_o style_n must_v be_v equal_a in_o height_n to_o the_o semidiameter_n of_o the_o equator_n and_o fix_v on_o the_o line_n of_o 6._o chap_n v._o show_v the_o make_v a_o direct_a parallel_n polar_a plane_n or_o opposite_a equinoctial_a i_o call_v this_o a_o direct_a parallel_n polar_a plane_n for_o this_o cause_n because_o all_o plane_n may_v be_v call_v by_o their_o situation_n of_o their_o pole_n and_o so_o a_o equinoctial_a parallel_a plane_n may_v be_v call_v a_o polar_a plane_n because_o the_o pole_n thereof_o lie_v in_o the_o pole_n of_o the_o world_n the_o gnomon_n must_v be_v a_o quadrangled_a parallelogram_n who_o height_n be_v equal_a to_o the_o semidiameter_n of_o the_o equator_n as_o in_o the_o east_n and_o west_n dial_n so_o likewise_o these_o hour_n be_v tangent_n to_o the_o equator_n arithmetical_a calculation_n draw_v first_o a_o line_n represent_v the_o meridian_n or_o 12_o a_o clock_n line_n and_o another_o parallel_n to_o the_o say_a line_n for_o some_o hour_n which_o may_v have_v place_n on_o the_o line_n say_v as_o the_o tangent_fw-la of_o that_o hour_n be_v to_o the_o radius_fw-la so_o be_v the_o distance_n of_o that_o hour_n from_o the_o meridian_n to_o the_o height_n of_o the_o style_n 2_o as_o the_o radius_fw-la be_v to_o the_o height_n of_o the_o style_n so_o the_o tangent_fw-la of_o any_o hour_n to_o the_o distance_n of_o that_o hour_n from_o the_o meridian_n chap_n vi_o show_v the_o make_n of_o a_o direct_a opposite_a polar_a plane_n or_o parallel_v equinoctial_a dial_n a_o equinoctial_a plane_n lie_v parallel_n to_o the_o equinoctial_a circle_n make_v a_o angle_n at_o the_o horizon_n equal_a to_o the_o elevation_n of_o the_o say_a circle_n the_o pole_n of_o which_o plane_n lie_v in_o the_o pole_n of_o the_o world_n the_o make_n of_o this_o plane_n require_v little_a instruction_n for_o by_o draw_v a_o circle_n and_o divide_v it_o into_o 24_o part_n the_o plane_n be_v prepare_v all_o fix_v a_o style_n in_o the_o centre_n at_o right_a angle_n to_o the_o plane_n as_o the_o radins_n be_v to_o the_o sine_fw-la of_o declination_n so_o be_v the_o cotangent_n of_o the_o pole_n height_n to_o the_o tangent_fw-la of_o the_o distance_n of_o the_o sub-stile_n from_o the_o meridian_n if_o you_o draw_v line_n from_o 7_o to_o 5_o on_o each_o side_n those_o line_n so_o cut_v shall_v be_v the_o place_n of_o the_o hour_n line_n of_o a_o parallel_a polar_a plane_n now_o if_o you_o draw_v to_o each_o opposite_a from_o the_o prick_a line_n those_o line_n shall_v be_v the_o hour_n line_n of_o the_o former_a plane_n chap_n vii_o show_v the_o make_n of_o a_o erect_v vertical_a decline_a dial_n if_o you_o will_v work_v by_o the_o fundamental_a diagram_n you_o shall_v first_o draw_v a_o line_n such_o be_v the_o line_n ab_o represent_v the_o meridian_n then_o shall_v you_o take_v out_o of_o the_o fundamental_a diagram_n the_o secant_n of_o the_o latitude_n viz._n ac_o and_o prick_v it_o down_o from_o a_o to_o b_o and_o at_o b_o you_o shall_v draw_v a_o horizontal_a line_n at_o right_a angle_n such_o be_v the_o line_n cd_o than_o you_o shall_v continue_v the_o line_n ab_o towards_o i_fw-it and_o from_o that_o line_n and_o where_o the_o line_n ab_o cross_v in_o cd_o describe_v a_o arch_a equal_a to_o the_o angle_n of_o declination_n towards_o f_o if_o it_o decline_v eastward_o and_o towards_o g_o if_o the_o plane_n decline_v westward_o then_o shall_v you_o prick_v down_o on_o the_o line_n bf_o if_o it_o bean_n easterly_a decline_a plane_n or_o from_o b_o to_o g_o if_o contrary_n the_o secant_n compliment_n of_o the_o latitude_n viz._n ag_o in_o the_o fundamental_a diagram_n and_o the_o sine_fw-la of_o 51_o degree_n viz._n da_o which_o be_v all_o one_o with_o the_o semidiameter_n of_o the_o equator_n and_o therewithal_o prick_v it_o down_o at_o right_a angle_n to_o the_o line_n of_o declination_n viz._n bf_o from_o b_o to_o h_o and_o g_o and_o from_o f_o towards_o k_o and_o l_o then_o draw_v the_o long_a square_a kikl_o and_o from_o b_o towards_o h_o and_o g_o prick_v down_o the_o several_a tangent_n of_o 15_o 30_o 45_o and_o prick_v the_o same_o distance_n from_o k_o and_o l_n towards_o h_o and_o g_o last_o draw_v line_n through_o each_o of_o those_o point_n from_o f_o to_o the_o horizontal_a line_n cd_o and_o where_o they_o end_v on_o that_o line_n to_o each_o point_n draw_v the_o hour_n line_n from_o the_o point_n a_o which_o plane_n in_o our_o example_n be_v a_o vertical_a decline_v eastward_o 45_o degree_n and_o it_o be_v finish_v but_o because_o the_o contingent_a line_n will_v run_v out_o so_o far_o before_o it_o be_v intersect_v i_o shall_v give_v you_o one_o follow_v geometrical_a example_n to_o prick_v down_o a_o decline_a dial_n in_o a_o right_a angle_a parallelogram_n now_o for_o the_o arithmetical_a calculation_n the_o first_o operation_n shall_v be_v thus_o as_o the_o radius_fw-la to_o the_o cotangent_n of_o the_o elevation_n so_o be_v the_o sine_fw-la of_o the_o declination_n to_o the_o tangent_fw-la of_o the_o substile_n distance_n from_o the_o meridian_n of_o the_o place_n then_o two_o operation_n have_v the_o compliment_n of_o the_o declination_n and_o elevation_n find_v the_o
0_o 11_o 1_o 59_o 43_o 56_o 34_o 48_o 12_o 36_o 58_o 25_o 40_o 17_o 6_o 13_o 52_o 10_o 2_o 53_o 45_o 50_o 55_o 43_o 12_o 32_o 37_o 21_o 51_o 13_o 38_o 10_o 30_o 9_o 3_o 45_o 42_o 43_o 6_o 36_o 0_o 26_o 7_o 15_o 58_o 8_o 12_o 5_o 15_o 8_o 4_o 36_o 41_o 34_o 13_o 27_o 31_o 18_o 8_o 8_o 33_o 1_o 15_o  _fw-fr  _fw-fr 7_o 5_o 27_o 17_o 24_o 56_o 18_o 18_o 9_o 17_o 0_o 6_o  _fw-fr  _fw-fr  _fw-fr  _fw-fr 6_o 6_o 18_o 11_o 15_o 40_o 9_o 0_o  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr 5_o 7_o 9_o 32_o 6_o 50_o  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr 11_o 37_o 4_o 8_o 1_o 32_o  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr  _fw-fr 21_o 40_o this_o table_n be_v in_o mr._n gunter_n book_n page_n 240_o which_o if_o you_o desire_v to_o have_v the_o point_n of_o the_o equinoctial_a for_o a_o horizontal_a plane_n on_o the_o hour_n of_o 12_o enter_v the_o table_n of_o shadow_n with_o 38_o de_fw-fr 30_o m._n and_o you_o shall_v find_v the_o length_n of_o the_o shadow_n to_o be_v 15_o part_n 5_o m._n of_o the_o length_n of_o the_o style_n divide_v into_o 12_o which_o prick_v down_o on_o the_o line_n of_o 12_o for_o the_o equinoctial_a point_n from_o the_o foot_n of_o the_o style_n so_o if_o i_o desire_v the_o point_n of_o the_o tropic_a of_o cancer_n i_o find_v by_o this_o table_n that_o at_o 12_o of_o the_o clock_n the_o sun_n be_v 62_o de_fw-la high_a with_o which_o i_o enter_v the_o table_n of_o shadow_n find_v the_o length_n of_o the_o shadow_n which_o i_o prick_v down_o on_o the_o 12_o a_o clock_n line_n for_o the_o point_n of_o the_o tropic_a of_o cancer_n at_o the_o hour_n of_o 12._o if_o for_o the_o hour_n of_o 1_o i_o desire_v the_o point_n through_o which_o the_o parallel_n must_v pass_v look_v for_o the_o hour_n of_o 1_o and_o 11_o in_o this_o last_o table_n under_o cancer_n and_o i_o find_v the_o sun_n to_o have_v the_o height_n of_o 59_o de_fw-fr 43_o m._n with_o which_o i_o enter_v the_o table_n of_o shadow_n and_o prick_v down_o the_o length_n thereof_o from_o the_o bottom_n of_o the_o style_n reach_v till_o the_o other_o foot_n of_o the_o compass_n fall_v on_o the_o hour_n for_o which_o it_o be_v intend_v do_v so_o in_o all_o the_o other_o hour_n till_o you_o have_v prick_v down_o the_o point_n of_o the_o parallel_n of_o declination_n through_o which_o point_n they_o must_v be_v draw_v hyperbolical_o proceed_v thus_o in_o the_o make_n of_o a_o horizontal_a dial_n but_o if_o it_o be_v a_o direct_a vertical_a dial_n you_o shall_v then_o take_v the_o length_n of_o the_o vertical_a shadow_n out_o of_o the_o say_a table_n or_o work_v it_o as_o a_o horizontal_a plane_n only_o account_v the_o compliment_n of_o the_o elevation_n in_o stead_n of_o the_o whole_a elevation_n for_o a_o decline_a plane_n you_o may_v consider_v it_o as_o a_o vertical_a direct_v in_o some_o other_o place_n and_o have_v find_v out_o the_o equator_n of_o the_o plane_n and_o the_o substyle_n you_o may_v proceed_v in_o the_o same_o manner_n from_o the_o foot_n of_o the_o style_n account_v where_o the_o style_n stand_v to_o be_v no_o other_o way_n than_o the_o meridian_n line_n or_o line_n of_o 12_o in_o a_o horizon_n who_o pole_n be_v elevate_v according_a to_o the_o compliment_n height_n of_o the_o style_n above_o the_o substyle_n and_o so_o prick_v down_o the_o length_n of_o the_o shadow_n from_o the_o foot_n of_o the_o style_n on_o every_o one_o of_o the_o hour_n line_n as_o if_o it_o be_v a_o horizontal_a or_o vertical_a plane_n but_o in_o this_o you_o must_v be_v wary_a remember_v that_o you_o have_v the_o height_n of_o the_o sun_n calculate_v for_o every_o hour_n of_o that_o latitude_n in_o the_o entrance_n of_o the_o 12_o sign_n in_o that_o place_n where_o your_o plane_n be_v a_o horizontal_a plane_n or_o otherways_o by_o consider_v of_o it_o as_o a_o horizontal_a or_o verricallplane_v in_o another_o latitude_n for_o the_o azimuth_n or_o vertical_a circle_n show_v one_o what_o point_n of_o the_o compass_n the_o sun_n be_v in_o every_o hour_n of_o the_o day_n it_o be_v perform_v with_o a_o great_a deal_n of_o facility_n if_o first_o when_o the_o sun_n be_v in_o the_o equator_n we_o do_v know_v by_o the_o last_o table_n of_o the_o height_n of_o the_o sun_n for_o every_o hour_n of_o the_o day_n and_o by_o his_o meridian_n altitude_n with_o the_o help_n of_o the_o table_n of_o shadow_n find_v out_o the_o equinoctial_a line_n whether_o it_o be_v a_o horizontal_a or_o upright_a direct_a plane_n for_o have_v draw_v that_o line_n at_o right_a angle_n with_o the_o meridian_n and_o have_v the_o place_n of_o the_o style_n and_o length_n thereof_o in_o part_n and_o the_o part_n of_o shadow_n to_o all_o altitude_n of_o the_o sun_n be_v prick_v down_o from_o the_o foot_n of_o the_o style_n on_o the_o equinoctial_a line_n through_o each_o of_o those_o point_n draw_v parallel_a line_n to_o the_o meridian_n or_o 12_o a_o clock_n line_n on_o each_o side_n which_o shall_v be_v the_o azimuth_n which_o you_o must_v have_v a_o care_n how_o you_o denominate_v according_a to_o the_o quarter_n of_o heaven_n in_o which_o the_o sun_n be_v in_o for_o if_o the_o sun_n be_v in_o the_o easterly_a point_n the_o azimuth_n must_v be_v on_o the_o western_a side_n of_o the_o plane_n so_o also_o the_o morning_n hour_n must_v be_v on_o the_o opposite_a side_n there_o be_v many_o other_o astronomical_a conclusion_n that_o be_v use_v to_o be_v put_v upon_o plane_n as_o the_o diurnal_a arch_n show_v the_o length_n of_o the_o day_n and_o night_n as_o also_o the_o jewish_a or_o old_a unequal_a hour_n together_o with_o the_o circle_n of_o position_n which_o with_o the_o meridian_n and_o horizon_n distinguish_v the_o upper_a hemisphere_n into_o 6_o part_n common_o call_v the_o house_n of_o heaven_n which_o if_o this_o i_o have_v write_v beget_v any_o desire_n of_o the_o reader_n i_o shall_v endeavour_v to_o enlarge_v myself_o much_o more_o in_o show_v a_o demonstrative_a way_n in_o these_o particular_n i_o have_v last_o insist_v upon_o i_o may_v hear_v also_o show_v you_o the_o exceed_a use_n of_o the_o table_n of_o right_n and_o verse_v shadow_n in_o the_o take_n of_o height_n of_o building_n as_o it_o may_v very_o well_o appear_v in_o the_o several_a use_n of_o the_o quadrant_a in_o diggs_n his_o pantometria_fw-la and_o in_o mr._n gunter_n quadrant_n have_v the_o part_n of_o right_a and_o verse_v shadow_n graduate_v on_o they_o to_o which_o book_n i_o refer_v you_o chap_n xiv_o show_v the_o draw_n of_o the_o ceiling_n dial_n it_o be_v a_o axiom_n pronounce_v long_o since_o by_o those_o who_o have_v write_v of_o optical_a conceit_n of_o light_n and_o shadow_n that_o omnis_fw-la reflectio_fw-la luminis_fw-la est_fw-la secundum_fw-la lineas_fw-la sensibiles_fw-la latitudinem_fw-la habentes_fw-la and_o it_o have_v with_o as_o great_a reason_n be_v pronounce_v by_o geometrician_n that_o the_o angle_n of_o incidence_n and_o reflection_n be_v all_o one_o as_o appear_v to_o we_o by_o euclides_n catoptriques_n and_o on_o this_o foundation_n be_v this_o conceit_n of_o which_o we_o be_v now_o speak_v wherefore_o because_o the_o direct_a beam_n can_v fall_v on_o the_o face_n of_o this_o plane_n we_o must_v by_o help_n of_o a_o piece_n of_o glass_n apt_a to_o receive_v and_o reflect_v the_o light_n place_v somewhere_o horizontal_o in_o a_o window_n proceed_v to_o the_o work_n which_o indeed_o be_v no_o other_o than_o a_o horizontal_a dial_n reverse_v to_o which_o require_v a_o meridian_n line_n which_o you_o must_v endeavour_v to_o draw_v and_o find_v according_a as_o you_o be_v before_o teach_v or_o by_o the_o help_n of_o the_o meridian_n altitude_n of_o the_o sun_n your_o glass_n be_v fix_v mark_v the_o spot_n that_o reflect_v upon_o the_o ceiling_n just_a at_o 12_o a_o clock_n make_v that_o one_o point_n and_o for_o the_o other_o point_n through_o which_o you_o must_v draw_v your_o meridian_n line_n you_o may_v find_v by_o hold_v up_o a_o thread_n and_o plummet_n till_o the_o plummet_n fall_v perpendicular_a on_o the_o glass_n and_o at_o the_o other_o end_n of_o the_o line_n hold_v on_o the_o ceiling_n make_v another_o mark_n through_o both_o which_o draw_v the_o meridian_n line_n now_o for_o so_o much_o as_o the_o centre_n of_o the_o dial_n be_v a_o point_n without_o and_o the_o distance_n between_o the_o glass_n and_o the_o ceiling_n be_v to_o be_v consider_v as_o the_o height_n of_o the_o style_n the_o glass_n itself_o represent_v the_o centre_n of_o the_o world_n or_o the_o very_a apex_n of_o the_o style_n we_o must_v find_v out_o those_o two_o tangent_n at_o right_a angle_n with_o the_o
meridian_n the_o one_o near_o the_o window_n the_o other_o far_o in_o through_o several_a point_n whereof_o we_o must_v draw_v the_o hourline_n let_v ab_o be_v the_o meridian_n line_n find_v on_o the_o ceiling_n now_o suppose_v the_o sun_n be_v in_o the_o high_a degree_n of_o cancer_n shall_v shine_v into_o the_o glass_n that_o be_v fix_v in_o c_o it_o shall_v again_o reflect_v unto_o d_o where_o i_o make_v a_o mark_n then_o let_v a_o plummet_n fall_v from_o the_o top_n of_o the_o ceiling_n till_o it_o fall_v just_a on_o c_o the_o glass_n from_o the_o point_n e_o from_o which_o draw_v the_o line_n a_o b_o through_o d_o and_o e_o which_o shall_v be_v the_o meridian_n require_v if_o you_o do_v this_o just_a at_o noon_n now_o if_o you_o will_v find_v out_o the_o place_n where_o the_o hour-line_n shall_v cross_v the_o meridian_n the_o centre_n lie_v without_o the_o window_n aec_o you_o may_v work_v thus_o chap_n x._o show_v the_o make_n and_o use_n of_o the_o cylinder_n dial_n who_o hour-line_n be_v straight_o as_o also_o a_o dial_n draw_v from_o the_o same_o form_n have_v no_o style_n this_o may_v be_v use_v on_o a_o staff_n or_o other_o round_a make_v like_o a_o cylinder_n be_v draw_v as_o be_v here_o describe_v where_o the_o right_a side_n represent_v the_o tropic_n and_o the_o left_a side_n the_o equinoctial_a or_o it_o may_v be_v use_v flat_a as_o it_o be_v in_o the_o book_n the_o instrument_n as_o you_o see_v be_v divide_v into_o month_n and_o the_o bottom_n into_o sign_n and_o the_o line_n on_o the_o right_a side_n be_v a_o tangent_fw-la to_o the_o radius_fw-la of_o the_o breadth_n of_o the_o parallelogram_n serve_v to_o take_v the_o height_n of_o the_o sun_n the_o several_a parallel_n downward_o run_v through_o the_o prick_a line_n in_o the_o middle_a be_v the_o line_n of_o altitude_n and_o the_o parallel_n to_o the_o equator_n be_v the_o parallel_n of_o declination_n number_v on_o the_o bottom_n on_o a_o sine_fw-la of_o 23_o de_fw-fr and_o a_o half_a for_o the_o altitude_n of_o the_o sun_n the_o use_n of_o it_o be_v first_o if_o it_o be_v describe_v on_o the_o head_n of_o a_o staff_n to_o have_v a_o gnomon_n on_o the_o top_n equal_a to_o the_o radius_fw-la and_o just_a over_o the_o tangent_fw-la of_o altitude_n to_o turn_v it_o till_o you_o bring_v the_o shadow_n of_o it_o at_o right_a angle_n to_o itself_o which_o shall_v denote_v the_o height_n require_v for_o the_o hour_n of_o the_o day_n seek_v the_o altitude_n of_o the_o sun_n in_o the_o middle_a prick_a line_n and_o the_o declination_n in_o the_o parallel_n from_o the_o equator_n and_o mark_v where_o the_o traverse_v line_n cross_v through_o the_o cross_n of_o the_o two_o former_a line_n and_o at_o the_o end_n you_o shall_v find_v the_o figure_n of_o 2_o or_o 10_o 3_o or_o 9_o etc._n etc._n only_o the_o summer_n hour_n be_v seek_v in_o the_o right_a side_n where_o the_o sun_n be_v high_a and_o the_o traverse_v line_n long_o and_o in_o the_o winter_n the_o hour_n be_v seek_v on_o the_o left_a side_n where_o the_o traverse_v line_n be_v short_a for_o the_o declination_n and_o degree_n of_o the_o sign_n seek_v the_o day_n of_o the_o month_n on_o the_o top_n mark_v with_o j._n for_o january_n f_o for_o february_n etc._n etc._n and_o by_o the_o help_n of_o a_o horse_n hair_n or_o thread_n extend_v from_o that_o all_o along_o of_o parallel_n of_o declination_n till_o it_o cut_v on_o the_o bottom_n where_o the_o sign_n be_v number_v the_o down_o right_a line_n that_o be_v parallel_n to_o the_o equator_n count_v towards_o the_o right_a hand_n be_v the_o degree_n of_o the_o declination_n of_o that_o part_n of_o the_o ecliptic_a which_o be_v in_o the_o bottom_n right_a against_o the_o day_n of_o the_o month_n seek_v on_o the_o top_n the_o prick_a line_n pass_v through_o the_o 18_o degree_n of_o the_o parallel_n of_o altitude_n be_v the_o line_n of_o twilight_n this_o projection_n i_o have_v of_o my_o very_a good_a friend_n john_n hulet_n master_n of_o art_n and_o teacher_n of_o the_o mathematics_n you_o may_v also_o make_v a_o dial_n by_o prepare_v of_o a_o hollow_a cylinder_n and_o if_o you_o do_v number_n on_o both_o end_n of_o the_o circle_n on_o top_n and_o bottom_n 15_o de_fw-fr from_o line_n to_o line_n or_o divide_v it_o into_o 24_o part_n and_o if_o from_o top_n to_o bottom_n you_o draw_v straight_a line_n first_o by_o divide_v the_o cylinder_n through_o the_o middle_n and_o only_o make_v use_n of_o one_o half_a it_o shall_v have_v 12_o hour_n upon_o it_o last_o if_o you_o cut_v off_o a_o piece_n from_o the_o bottom_n at_o a_o angle_n according_a to_o the_o elevation_n and_o turn_v the_o half_o cylinder_n horizontal_a on_o that_o bottom_n till_o the_o shadow_n of_o one_o of_o the_o side_n fall_v parallel_n with_o any_o one_o of_o those_o line_n from_o top_n to_o bottom_n which_o number_v as_o they_o ought_v shall_v show_v the_o hour_n without_o the_o use_n of_o a_o style_n so_o also_o may_v you_o project_v a_o dial_n on_o a_o globe_n have_v a_o round_a brim_n on_o the_o top_n who_o projection_n will_v seem_v strange_a to_o those_o that_o look_v upon_o it_o who_o be_v ignorant_a of_o these_o art_n chap_n xvi_o show_v the_o make_n of_o a_o universal_a dial_n on_o a_o globe_n and_o how_o to_o cover_v it_o if_o it_o be_v require_v if_o you_o desire_v to_o cover_v the_o globe_n and_o make_v other_o invention_n thereon_o first_o learn_v here_o to_o cover_v it_o exact_o with_o a_o pair_n of_o compass_n bow_v towards_o the_o point_n measure_v the_o diameter_n of_o the_o globe_n you_o intend_v to_o cover_v which_o have_v find_v the_o circumference_n thus_o multiply_v the_o diameter_n by_o 22_o and_o divide_v that_o product_n by_o 7_o and_o you_o have_v your_o desire_n that_o circumference_n let_v be_v the_o line_n a_o b_o which_o divide_v into_o 12_o equal_a part_n and_o at_o the_o distance_n of_o three_o of_o those_o part_n draw_v the_o parallel_n c_o d_o and_o e_o f_o a_o parallel_n be_v thus_o draw_v take_v the_o distance_n you_o will_v have_v it_o asunder_o as_o here_o it_o be_v three_o of_o those_o 12_o division_n set_v one_o foot_n in_o a_o and_o make_v the_o arch_n at_o e_o and_o another_o at_o b_o and_o make_v the_o arch_n with_o the_o other_o foot_n at_o f_o the_o compass_n at_o the_o wideness_n take_v then_o by_o the_o outward_a bulk_n of_o those_o arch_n draw_v the_o line_n e_o f_o so_o also_o draw_v the_o line_n c_o d._n and_o to_o divide_v the_o circumference_n into_o part_n as_o our_o example_n be_v into_o 12_o work_v thus_o set_v your_o compass_n in_o a_o make_v the_o ark_n b_o f_o the_o compass_n so_o open_v set_v again_o in_o b_o and_o make_v the_o ark_n a_o c_o then_o draw_v the_o line_n from_o a_o to_o f_o then_o measure_v the_o distance_n from_o f_o to_o b_o on_o the_o ark_n and_o place_n it_o on_o the_o other_o arch_n from_o a_o to_o c_o thence_o draw_v the_o line_n c_o b_o then_o your_o compass_n open_a at_o any_o distance_n prick_v down_o one_o part_n less_o on_o both_o those_o slant_v line_n then_o you_o intend_v to_o divide_v thereon_o which_o be_v here_o 11_o because_o we_o will_v divide_v the_o line_n a_o b_o into_o 12_o then_o draw_v line_n from_o each_o division_n to_o the_o opposite_a that_o cut_v the_o line_n a_o b_o in_o the_o part_n of_o division_n but_o to_o proceed_v continue_v the_o circumference_n at_o length_n to_o g_o and_o h_o number_v from_o a_o towards_o g9_n of_o those_o equal_a part_n and_o from_o b_o towards_o h_o as_o many_o which_o shall_v be_v the_o centre_n for_o each_o arch._n so_o those_o quarter_n so_o cut_v out_o shall_v exact_o cover_v the_o globe_n who_o circumference_n be_v equal_a to_o the_o line_n a_o b._n thus_o have_v you_o a_o glance_n of_o the_o mathematics_n strike_v at_o one_o thing_n through_o the_o side_n of_o a_o other_o for_o i_o here_o make_v one_o figure_n serve_v for_o three_o several_a operation_n because_o i_o will_v not_o charge_v the_o press_n with_o multiplicity_n of_o figure_n chap_n xvii_o show_v the_o find_n of_o the_o elevation_n of_o the_o pole_n and_o therewithal_o a_o meridian_n without_o the_o declination_n of_o sun_n or_o star_n this_o be_v do_v by_o erect_v a_o gnomon_n horizontal_a and_o at_o 3_o time_n of_o the_o day_n to_o give_v a_o mark_n at_o the_o end_n of_o the_o shadow_n now_o it_o be_v certain_a that_o represent_v the_o parallel_n of_o the_o sun_n for_o that_o day_n then_o take_v three_o thin_a stick_n or_o the_o like_a and_o lay_v they_o from_o the_o top_n of_o the_o gnomon_n to_o the_o place_n where_o the_o shadow_n fall_v and_o on_o these_o three_o so_o stand_v lie_v a_o board_n to_o lie_v on_o all_o
name_n will_v last_v and_o be_v in_o memory_n from_o age_n to_o age_n although_o for_o infamy_n what_o more_o abide_a tomb_n can_v man_n invent_v then_o book_n which_o if_o they_o be_v good_a be_v permanent_a and_o monument_n of_o fame_n the_o which_o shall_v last_v till_o the_o late_a evening_n of_o the_o world_n be_v past_a but_o if_o erroneous_a soothe_v with_o virtue_n face_n their_o author_n cridit's_n nothing_o but_o disgrace_n if_o i_o shall_v praise_v thy_o book_n it_o may_v be_v think_v friend_n will_v commend_v although_o the_o work_n be_v nought_o but_o i_o will_v forbear_v lest_o that_o my_o verse_n do_v belie_v that_o praise_n that_o be_v only_o due_a to_o you_o good_a wine_v require_v no_o bush_n and_o book_n will_v speak_v their_o author_n credit_n whether_o strong_a or_o weak_a w._n leybourn_n errata_fw-la reader_n i_o have_v write_v this_o some_o year_n since_o while_o i_o be_v a_o child_n in_o art_n and_o by_o this_o appear_v to_o be_v little_o more_o for_o want_v of_o a_o review_n have_v these_o fault_n which_o i_o desire_v thou_o to_o mend_v with_o thy_o pen_n and_o if_o there_o be_v any_o error_n in_o art_n as_o in_o chap._n 17_o which_o be_v only_o true_a at_o the_o time_n of_o the_o equinoctial_a take_v that_o for_o a_o oversight_n and_o where_o thou_o find_v equilibra_fw-la read_v equilibrio_fw-la and_o in_o the_o dedication_n in_o some_o copy_n read_v robert_n bateman_n for_o thomas_n and_o side_n for_o sign_n and_o know_v that_o optima_fw-la prima_fw-la cadunt_fw-la pessimas_fw-la aeve_fw-la manent_fw-la pag._n line_n correct_v ●_z 10_o equal_a line_n 18_o 16_o galaxia_fw-la 21_o 1_o galaxia_fw-la 21_o 8_o mars_n 24_o 12_o scheme_n 35_o 1_o have_v 38_o 8_o of_o the_o tropic_n and_o polar_a circle_n 40_o 22_o ab_o be_v 44_o 31_o artificial_a 46_o ult_n heri_fw-la 49_o 4_o forenoon_n 63_o 29_o ab_o 65_o 11_o 6_o 80_o 16_o bd_o 92_o 17_o arch_n cd_o 9_o ult_n in_o some_o copy_n omit_v centre_n 126_o 4_o happen_v 126_o 6_o towards_o b_o 127_o 26_o before_o 126_o prop._n 10_o for_o sine_fw-la read_v tang_n elev_fw-la  _fw-fr figure_n of_o the_o dodicahedron_n false_a cut_v pag._n 4_o lf_o omit_v at_o end_n of_o axis_n 25_o for_o a_o read_v d_o 26_o in_o the_o east_n and_o west_n dial_n a_o omit_v on_o the_o top_n of_o the_o middle_a line_n c_o on_o the_o left_a hand_n b_o on_o the_o right_a 55_o small_a arch_n at_o b_o omit_v in_o the_o first_o polar_a plane_fw-la 58_o for_o e_o read_v p_o on_o the_o side_n of_o the_o shadow_a line_n towards_o the_o left_a hand_n i_o omit_v next_o to_o m_o and_o l_o in_o the_o centre_n omit_v 81_o k_n omit_v in_o figure_n 85_o on_o the_o line_n fc_o for_o 01_o read_v 6_o for_o 2_o read_v 12_o line_n mo_o for_o 15_o read_v 11_o 96_o a_o small_a arch_n omit_v at_o e_o and_o f_o g_o and_o h_o omit_v at_o the_o end_n of_o the_o line_n where_o 9_o be_v 116_o i_o and_o l_o omit_v on_o the_o little_a epicicle_n 122_o the_o argument_n of_o the_o praecognita_fw-la geometrical_a and_o of_o the_o work_n in_o general_a what_o shall_v i_o do_v i_o stand_v in_o doubt_n to_o show_v thou_o to_o the_o light_n for_o momus_n still_o will_v have_v a_o flout_n and_o like_o a_o satire_n bite_v his_o serpentarian_a tongue_n will_v sting_v his_o tongue_n can_v be_v no_o slander_n he_o be_v one_o to_o ward_n all_o that_o have_v a_o fling_n his_o finger_n end_n have_v scan_v she_o but_o see_v then_o his_o tongue_n can_v hurt_v fear_v not_o my_o little_a book_n his_o slander_n all_o last_o but_o a_o spurt_n and_o give_v he_o leave_v to_o look_v and_o scan_v thou_o through_o and_o if_o then_o this_o momus_n needs_o must_v bite_v at_o shadow_n which_o dependent_a be_v only_o upon_o the_o light_n withdraw_v thy_o light_n and_o be_v obscure_a and_o if_o he_o yet_o can_v see_v fault_n in_o the_o best_a that_o ever_o write_v he_o must_v find_v fault_n with_o i_o how_o ever_o proceed_v in_o private_a and_o deline_n the_o time_n of_o the_o day_n as_o oft_o as_o sun_n shall_v shine_v and_o first_o define_v a_o praecognitiall_a part_n of_o magnitude_n as_o useful_a to_o this_o art_n the_o praecognita_fw-la geometrical_a the_o art_n say_v arnobius_n be_v not_o together_o with_o our_o mind_n send_v out_o of_o the_o heavenly_a place_n but_o all_o be_v find_v out_o on_o earth_n and_o be_v in_o process_n of_o time_n soft_a and_o fair_a forge_v by_o a_o continual_a meditation_n our_o poor_a and_o needy_a life_n perceive_v some_o casual_a thing_n to_o happen_v prosperous_o while_o it_o do_v imitate_v attempt_v and_o try_v while_o it_o do_v slip_v reform_v and_o change_v have_v out_o of_o these_o same_o assiduous_a apprehension_n make_v up_o small_a science_n of_o art_n the_o which_o afterwards_o by_o study_n be_v bring_v to_o some_o perfection_n by_o which_o we_o see_v that_o art_n be_v find_v out_o by_o daily_a practice_n yet_o the_o practice_n of_o art_n be_v not_o manifest_a but_o by_o speculative_a illustration_n because_o by_o speculation_n scimus_fw-la ut_fw-la sciamus_fw-la we_o know_v that_o we_o may_v the_o better_o know_v and_o for_o this_o cause_n i_o first_o choose_v a_o speculative_a part_n that_o you_o may_v the_o better_o know_v the_o practice_n and_o therefore_o have_v first_o choose_v this_o speculative_a part_n of_o practical_a geometry_n which_o be_v a_o science_n declare_v the_o nature_n quantity_n and_o quality_n of_o magnitude_n which_o proceed_v from_o the_o least_o imaginable_a thing_n to_o begin_v then_o a_o point_n be_v a_o indivisible_a yet_o be_v the_o first_o of_o all_o dimension_n it_o be_v the_o philosopher_n atom_n such_o a_o nothing_o as_o that_o it_o be_v the_o very_a energy_n of_o all_o thing_n in_o god_n it_o carry_v its_o extreme_n from_o eternity_n to_o eternity_n in_o the_o world_n it_o be_v the_o same_o which_o moses_n call_v the_o beginning_n and_o be_v his_o genesis_n it_o be_v the_o clotho_n that_o give_v clio_n the_o matter_n to_o work_v upon_o and_o spin_v it_o forth_o from_o terminus_fw-la à_fw-la quo_fw-la to_o terminus_fw-la ad_fw-la quem_fw-la in_o the_o alphabet_n it_o be_v the_o alpha_fw-gr and_o be_v in_o the_o cusp_n of_o the_o ascendant_n in_o every_o science_n and_o the_o house_n of_o life_n in_o every_o operation_n again_o a_o point_n be_v either_o centrical_a or_o excentrical_a both_o which_o be_v consider_v geometrical_o or_o optical_o that_o be_v a_o point_n or_o a_o seem_a point_n a_o point_n geometrical_o consider_v be_v indivisible_a and_o be_v central_a be_v of_o magnitude_n without_o consideration_n of_o form_n or_o of_o rotundity_n with_o reference_n to_o figure_n as_o a_o circle_n or_o a_o globe_n etc._n etc._n or_o of_o ponderosity_n with_o reference_n to_o weight_n and_o such_o a_o point_n be_v in_o those_o balance_n which_o hang_v in_o equilibra_fw-la yet_o have_v one_o beam_n long_o than_o the_o other_o if_o it_o be_v a_o seem_a point_n it_o be_v increase_v or_o diminish_v optical_o that_o be_v according_a to_o the_o distance_n of_o the_o object_n and_o subject_n it_o be_v the_o birth_n of_o any_o thing_n and_o indeed_o be_v to_o be_v consider_v as_o our_o principal_a significator_n which_o be_v increase_v do_v produce_v quantity_n which_o be_v the_o require_v to_o magnitude_n for_o magnitude_n be_v no_o other_o than_o a_o continuation_n of_o quantity_n which_o be_v either_o from_o a_o line_n to_o a_o plain_a superficies_fw-la or_o from_o a_o plain_a superficies_n to_o a_o solid_a body_n every_o of_o which_o be_v consider_v according_a to_o the_o quantity_n or_o form_n the_o quantity_n of_o a_o line_n be_v length_n without_o breadth_n or_o thickness_n the_o form_n either_o right_a or_o curve_v the_o quantity_n of_o a_o superficies_n consist_v in_o length_n and_o breadth_n without_o thickness_n the_o form_n be_v divers_a either_o regular_a or_o irregular_a regular_a be_v triangle_n square_n circle_n pentagon_n hexagon_n etc._n etc._n a_o equilateral_a triangle_n consist_v of_o three_o right_a line_n and_o as_o many_o angle_n his_o inscribe_a side_n in_o a_o circle_n contain_v 120_o degree_n a_o square_n of_o four_o equal_a right_a line_n and_o as_o many_o right_a angle_n and_o his_o inscribe_a side_n be_v 90_o degree_n a_o pentagon_n consist_v of_o five_o equal_a line_n and_o angle_n and_o his_o inscribe_a side_n be_v 72_o degree_n of_o a_o circle_n a_o hexagon_n be_v of_o six_o equal_a line_n and_o angle_n and_o his_o side_n within_o a_o circle_n be_v 60_o degree_n which_o be_v equal_a to_o the_o radius_fw-la or_o semidiameter_n a_o angle_n be_v the_o meeting_n of_o two_o line_n not_o in_o a_o straight_o concur_v but_o which_o be_v extend_v will_v cross_v each_o other_o but_o if_o they_o will_v never_o cross_v than_o they_o be_v parallel_n the_o quantity_n of_o a_o angle_n be_v the_o measure_n of_o the_o part_n of_o a_o circle_n
divide_v into_o 360_o degree_n between_o the_o open_a end_n and_o the_o angle_n itself_o be_v the_o centre_n of_o the_o circle_n the_o quantity_n of_o a_o solid_a consist_v of_o length_n breadth_n and_o thickness_n the_o form_n be_v various_a regular_a or_o irregular_a the_o five_o regular_a or_o platonic_a body_n be_v the_o tetrahedron_n hexahedron_n octohedron_n dodecahedron_n icosahedron_n tetrahedron_n be_v a_o solid_a body_n consist_v of_o four_o equal_a equilateral_a triangle_n a_o hexahedron_n be_v a_o solid_a body_n consist_v of_o six_o equal_a square_n and_o be_v right_o angle_v every_o way_n an_fw-mi octahedron_n be_v a_o solid_a body_n consist_v of_o eight_o equal_a equilateral_a triangle_n a_o dodecahedron_n be_v a_o solid_a body_n consist_v of_o 12_o equal_a pentagon_n an_fw-mi icosahedron_n be_v a_o solid_a body_n consist_v of_o 20_o equal_a equilateral_a triangle_n all_o which_o be_v here_o describe_v in_o plano_fw-la by_o which_o they_o be_v make_v in_o pasteboard_n or_o if_o you_o will_v cut_v they_o in_o solid_a it_o be_v perform_v by_o mr._n wells_n in_o his_o art_n of_o shadow_n where_o also_o he_o have_v fit_v plane_n for_o the_o same_o body_n a_o parallel_n line_n be_v a_o line_n equidistant_a in_o all_o place_n from_o another_o line_n which_o two_o line_n can_v never_o meet_v a_o perpendicular_a be_v a_o line_n right_o elevate_v to_o another_o at_o right_a angle_n and_o be_v thus_o erect_v suppose_v ab_o be_v a_o line_n and_o in_o the_o point_n a_o you_o will_v erect_v a_o perpendicular_a set_v one_o foot_n of_o your_o compass_n in_o a_o extend_v the_o other_o upward_o anywhere_o as_o at_o c_o then_o keep_v the_o foot_n fix_v in_o c_o remove_v that_o foot_n as_o be_v in_o a_o towards_o b_o till_o it_o fall_v again_o in_o the_o line_n ab_o then_o if_o you_o lay_v a_o ruler_n by_o the_o foot_n of_o your_o compass_n keep_v the_o foot_n fix_v in_o c_o and_o turn_v the_o other_o foot_n towards_o d_o by_o the_o side_n of_o the_o ruler_n and_o where_o that_o fall_v make_v a_o mark_n from_o whence_o draw_v the_o line_n da_o which_o be_v perpendicular_a to_o ab_o and_o so_o much_o shall_v suffice_v for_o the_o praecognita_fw-la geometrical_a the_o philosophical_a follow_v the_o end_n of_o the_o praecognita_fw-la geometrical_a the_o argument_n of_o the_o praecognita_fw-la philosophical_a not_o to_o maintain_v with_o nice_a philosophy_n what_o unto_o reason_n seem_v to_o be_v obscure_a or_o show_v you_o thing_n hide_v in_o obscurity_n who_o ground_n be_v nothing_o sure_a it_o be_v not_o the_o drift_n of_o this_o my_o book_n the_o world_n in_o two_o to_o part_n nor_o show_v you_o thing_n whereon_o to_o look_v but_o what_o have_v ground_n by_o art_n if_o be_v confirm_v what_o here_o you_o read_v sure_o you_o will_v confirm_v be_v if_o reason_n wont_a demonstrate_v it_o learn_v somewhere_o else_o for_o i_o there_o be_v show_v to_o you_o what_o shadow_n be_v and_o the_o earth_n proper_a place_n how_o it_o the_o middle_n do_v possess_v and_o how_o heaven_n run_v their_o race_n resolve_v many_o a_o proposition_n which_o be_v of_o use_n and_o needful_a to_o be_v know_v the_o praecognita_fw-la philosophical_a chap_n i_o of_o light_n and_o shadow_n he_o that_o seek_v shadow_n in_o its_o predicament_n seek_v a_o reality_n in_o a_o imitation_n he_o be_v right_o answer_v umbram_fw-la per_fw-la se_fw-la in_fw-la nullo_fw-la praedicamento_fw-la esse_fw-la the_o reason_n be_v thus_o render_v as_o have_v be_v it_o be_v not_o a_o reality_n but_o a_o confuse_a imitation_n of_o a_o body_n arise_v from_o the_o object_n of_o light_n so_o than_o there_o can_v be_v no_o other_o definition_n than_o this_o shadow_n be_v but_o the_o imitation_n of_o substance_n not_o incident_a to_o part_n cause_v by_o the_o interposition_n of_o a_o substance_n for_o umbra_fw-la non_fw-la potest_fw-la agere_fw-la sine_fw-la lumine_fw-la and_o and_o it_o be_v twofold_a cause_v by_o a_o twofold_a motion_n of_o light_n that_o be_v either_o from_o a_o direct_a beam_n of_o light_n which_o be_v primary_a or_o from_o a_o secondary_a which_o be_v reflective_a hence_o it_o be_v that_o sun_n dial_n be_v make_v where_o the_o direct_a beam_n can_v never_o fall_v as_o on_o the_o ceiling_n of_o a_o chamber_n or_o the_o like_a but_o in_o vain_a man_n seek_v after_o a_o shadow_n what_o then_o shall_v we_o proceed_v no_o far_o sure_o not_o so_o for_o qui_fw-la semper_fw-la est_fw-la in_fw-la suo_fw-la officio_fw-la be_v semper_fw-la orat_fw-la for_o there_o be_v no_o good_a and_o lawful_a action_n but_o do_v condescend_v to_o the_o glory_n of_o god_n and_o especial_o good_a and_o lawful_a art_n and_o that_o shadow_n may_v appear_v to_o be_v but_o dependent_a on_o light_n it_o be_v thus_o prove_v quod_fw-la est_fw-la et_fw-la existit_fw-la in_fw-la se_fw-la id_fw-la non_fw-la existit_fw-la in_fw-la alio_fw-la that_o which_o be_v and_o subsi_v in_o itself_o that_o subsi_v not_o in_o another_o but_o shadow_n subsi_v not_o in_o itself_o for_o take_v away_o the_o cause_n that_o be_v light_a and_o you_o take_v away_o the_o effect_n that_o be_v shadow_n hence_o we_o also_o observe_v the_o sun_n to_o be_v the_o fountain_n of_o light_n who_o daily_a and_o occurrent_a motion_n do_v cause_v a_o admirable_a lustre_n to_o the_o glory_n of_o god_n see_v that_o by_o he_o we_o measure_v out_o our_o time_n season_n and_o year_n be_v it_o not_o his_o annual_a revolution_n or_o his_o proper_a motion_n that_o limit_n our_o year_n be_v it_o not_o his_o tropical_a distinction_n that_o limit_n our_o season_n be_v it_o not_o his_o diurnal_a motion_n that_o limit_n out_o our_o day_n and_o hour_n and_o man_n true_o that_o arch_a type_n of_o perfection_n have_v limit_v these_o motion_n even_o in_o the_o small_a type_n of_o a_o dial_n plane_fw-la as_o shall_v be_v make_v manifest_a in_o thing_n of_o the_o second_o notion_n that_o be_v demonstration_n by_o which_o all_o thing_n shall_v be_v make_v plain_a chap_n ii_o of_o the_o world_n prove_v that_o the_o earth_n possess_v its_o own_o proper_a place_n we_o have_v now_o with_o the_o philosopher_n find_v out_o that_o common_a place_n or_o place_n of_o be_v that_o be_v the_o world_n will_v you_o know_v his_o reason_n it_o be_v render_v quia_fw-la omnia_fw-la reliqua_fw-la mundi_fw-la corpora_fw-la in_fw-la se_fw-la includit_fw-la i_o will_v tell_v you_o of_o no_o plurality_n not_o of_o planetary_a inhabitant_n such_o as_o the_o lunary_n lest_o you_o grabble_v in_o darkness_n in_o expect_v a_o shadow_n from_o the_o light_n without_o interposition_n for_o can_v the_o light_n real_o without_o a_o substance_n be_v its_o own_o gnomon_n sure_o no_o neither_o can_v we_o imagine_v our_o earth_n to_o be_v a_o change_a cynthia_n or_o a_o moon_n to_o give_v light_n to_o the_o lunary_n inhabitant_n for_o if_o our_o earth_n be_v a_o light_n as_o some_o will_v have_v it_o how_o come_v it_o to_o pass_v that_o it_o be_v a_o gnomon_n also_o to_o cast_v a_o shadow_n on_o the_o body_n of_o the_o moon_n far_o less_o than_o itself_o and_o so_o by_o consequence_n a_o great_a light_n can_v seem_v to_o be_v darken_v on_o a_o lesser_a or_o dull_a light_n and_o if_o not_o darken_v no_o shadow_n can_v appear_v but_o from_o this_o common_a place_n the_o world_n with_o all_o its_o part_n shall_v we_o descend_v to_o a_o second_o grave_n of_o distinction_n and_o come_v now_o to_o another_o which_o be_v a_o proprius_fw-la locus_fw-la and_o divide_v it_o into_o proper_a place_n consider_v it_o as_o it_o be_v divide_v into_o coelum_fw-la solum_fw-la salum_n heaven_n earth_n sea_n we_o need_v not_o so_o far_o a_o distinction_n but_o to_o prove_v that_o the_o earth_n be_v in_o its_o own_o proper_a place_n i_o thus_o reason_n proprius_fw-la locus_fw-la est_fw-la qui_fw-la proxime_fw-la nullo_fw-la alio_fw-la interveniente_fw-la continet_fw-la locatum_fw-la but_o it_o be_v certain_a that_o nothing_o can_v come_v so_o between_o the_o earth_n as_o to_o dispossess_v it_o of_o its_o place_n therefore_o it_o possess_v its_o proper_a place_n furthermore_o ad_fw-la quod_fw-la aliquid_fw-la movetur_fw-la id_fw-la est_fw-la ejus_fw-la locus_fw-la to_o what_o any_o thing_n move_v that_o be_v its_o place_n but_o the_o earth_n move_v not_o to_o any_o other_o place_n as_o be_v stable_n in_o its_o own_o proper_a place_n and_o this_o proper_a place_n be_v the_o terminus_fw-la ad_fw-la quem_fw-la to_o which_o as_o the_o place_n of_o their_o rest_n all_o heavy_a thing_n tend_v in_fw-la quo_fw-la motus_fw-la terminantur_fw-la in_o which_o their_o motion_n be_v end_v chap_n iii_o show_v how_o the_o earth_n be_v to_o be_v understand_v to_o be_v the_o centre_n a_o centre_n be_v either_o to_o be_v understand_v geometrical_o or_o optical_o either_o as_o it_o be_v a_o point_n or_o seem_v a_o point_n if_o it_o be_v a_o point_n it_o be_v conceive_v to_o be_v either_o a_o centre_n of_o magnitude_n or_o a_o centre_n of_o
they_o make_v day_n with_o they_o while_o it_o remain_v night_n with_o we_o and_o according_a to_o the_o demonstration_n be_v express_v by_o the_o greot_fw-la circle_n mark_v nsew_n signify_v the_o east_n west_n north_n and_o south_n part_n of_o the_o horizon_n so_o now_o if_o you_o imagine_v a_o circle_n to_o be_v draw_v from_o the_o sun_n leave_v our_o sight_n through_o those_o azimuth_n point_v of_o heaven_n than_o that_o circle_n there_o imagine_v be_v the_o horizon_n and_o be_v accidental_o divide_v as_o a_o man_n change_v his_o place_n and_o divide_v the_o world_n in_o a_o right_a or_o oblique_a sphere_n the_o meridian_n be_v a_o great_a circle_n situate_v at_o right_a angle_n to_o the_o horizon_n equal_o pass_v between_o the_o east_n and_o west_n point_v and_o consequent_o run_v due_a north_n and_o south_n and_o pass_v through_o the_o pole_n of_o the_o world_n be_v steadfast_o fix_v it_o be_v represent_v by_o the_o great_a circle_n mark_v ndsc_n and_o be_v accidental_o divide_v if_o we_o travel_v east_n or_o west_n but_o in_o travail_v north_n or_o south_n alter_v not_o and_o when_o the_o sun_n touch_v this_o circle_n it_o be_v then_o midday_n or_o noon_n now_o if_o you_o imagine_v a_o circle_n to_o pass_v from_o the_o north_n to_o the_o south_n part_n of_o the_o horizon_n through_o your_o zenith_n that_o circle_n so_o imagine_v be_v your_o meridian_n from_o which_o meridian_n we_o account_v the_o distance_n of_o hour_n the_o equinoctial_a likewise_o divide_v the_o world_n in_o two_o equal_a part_n cross_v at_o right_a angle_n between_o the_o two_o pole_n and_o be_v therefore_o distant_a from_o each_o pole_n 90_o degree_n and_o be_v elevate_v from_o the_o horizon_n on_o the_o contrary_a side_n of_o the_o pole_n elevation_n so_o much_o as_o the_o pole_n want_v of_o 90_o deg._n elevation_n demonstrate_v in_o the_o scene_n by_o the_o circle_n pass_v from_o a_o to_o b_o and_o be_v accidental_o elevate_v with_o the_o pole_n as_o we_o change_v our_o horizon_n and_o when_o the_o sun_n touch_v this_o circle_n the_o day_n and_o night_n be_v then_o equal_a and_o to_o those_o that_o live_v under_o this_o citcle_n the_o day_n and_o night_n hang_v in_o equilibra_fw-la continual_o and_o the_o sun_n do_v move_v every_o hour_n 15_o degree_n of_o this_o circle_n make_v the_o hour_n line_n equal_a pass_v 15_o degree_n in_o one_o hour_n 30_o degree_n in_o two_o hour_n 45_o degree_n in_o three_o hour_n 60_o degree_n for_o four_o and_o so_o increase_v 15_o degree_n as_o you_o increase_v in_o hour_n this_o i_o note_v to_o the_o intent_n you_o may_v know_v my_o meaning_n at_o such_o time_n as_o i_o shall_v have_v occasion_n to_o mention_v the_o equinoctial_a distance_n the_o axis_n of_o the_o world_n be_v that_o which_o the_o style_n in_o every_o dial_n represent_v be_v a_o line_n imaginary_a suppose_v to_o pass_v through_o the_o centre_n of_o the_o world_n from_o the_o south_n to_o the_o north_n part_n of_o the_o meridian_n who_o outmost_a end_n be_v the_o pole_n of_o the_o world_n this_o become_v the_o diameter_n about_o which_o the_o world_n be_v imagine_v to_o be_v turn_v in_o a_o right_a sphere_n have_v no_o elevation_n in_o a_o oblique_a to_o be_v elevate_v above_o the_o horizon_n and_o the_o angle_n at_o the_o centre_n number_v on_o the_o arch_n of_o the_o meridian_n between_o the_o apparent_a pole_n and_o the_o horizon_n be_v the_o elevation_n thereof_o represent_v by_o the_o straight_a line_n pass_v from_o e_o to_o f_o the_o arch_n en_fw-fr be_v account_v the_o elevation_n thereof_o which_o according_a to_o our_o demonstration_n be_v the_o latitude_n of_o london_n the_o star_n that_o do_v attend_v the_o arctic_a or_o north_n pole_n be_v the_o great_a and_o lesser_a bear_n the_o last_o star_n in_o the_o lesser_a bear_n tale_n be_v call_v the_o pole_n star_n by_o reason_n of_o its_o nearness_n to_o it_o this_o be_v the_o guide_n of_o mariner_n as_o appear_v by_o ovid_n in_o his_o exile_n thus_o you_o great_a and_o lesser_a bear_n who_o star_n do_v guide_v sydonian_a and_o grecian_a ship_n that_o glide_v even_o you_o who_o pole_n do_v view_v this_o lesser_a ball_n under_o the_o western_a sea_n near_o set_v at_o all_o the_o star_n that_o attend_v the_o southern_a pole_n be_v the_o cross_n as_o be_v see_v in_o the_o globe_n lord_n be_v my_o pole_n make_v i_o thy_o style_n lord_n then_o thy_o name_n shall_v be_v my_o terminus_fw-la ad_fw-la quem_fw-la video_fw-la coelos_fw-la opera_fw-la manuum_fw-la tuarum_fw-la lunam_fw-la et_fw-la stellas_fw-la que_fw-la tu_fw-la fundasti_fw-la chap_n iii_o of_o the_o several_a sort_n of_o plane_n and_o how_o they_o be_v know_v dial_n be_v the_o day_n limiter_n and_o the_o bounder_n of_o time_n whereof_o there_o be_v three_o sort_n horizontal_a erect_a incline_v horizontal_a be_v always_o parallel_a to_o the_o horizon_n erect_v some_o be_v erect_v direct_a other_o erect_v decline_a incline_v also_o be_v direct_a or_o decline_a for_o more_o explanation_n the_o figure_n follow_v shall_v give_v you_o better_a satisfaction_n where_o the_o horizon_n mark_v with_o diverse_a point_n of_o the_o compass_n shall_v explain_v the_o demonstration_n now_o if_o you_o imagine_v circle_n to_o pass_v through_o the_o zenith_n a_o cross_v the_o horizon_n in_o his_o opposite_a point_n as_o from_o sweet_o through_o the_o vertical_a point_n a_o pass_v to_o the_o opposite_a point_n of_o south-west_n to_o north-east_n those_o or_o the_o like_a circle_n be_v call_v azimuth_n parallel_n to_o which_o azimuth_n all_o erect_v sciothericals_n do_v stand_v those_o plane_n that_o lie_v parallel_n to_o the_o horizontal_a circle_n be_v call_v horizontal_a plane_n and_o his_o style_n make_v a_o angle_n with_o the_o pole_n equal_a to_o the_o elevation_n thereof_o then_o the_o elevation_n of_o the_o pole_n be_v the_o elevation_n of_o the_o style_n erect_a vertical_n be_v such_o which_o make_v right_a angle_n with_o the_o horizon_n and_o lie_v parallel_n to_o the_o vertical_a point_n and_o these_o as_o i_o tell_v you_o before_o be_v either_o direct_a or_o decline_a direct_v be_v those_o that_o stand_v in_o a_o direct_a azimuth_n behold_v one_o of_o the_o four_o cardinal_n quarter_n of_o the_o world_n as_o either_o direct_a east_n west_n north_n or_o south_n mark_v with_o these_o letter_n news_n or_o decline_v from_o they_o to_o some_o other_o indirect_a azimuth_n or_o side-lying_a point_n erect_a north_n and_o south_n be_v such_o as_o behold_v those_o quarter_n and_o cut_v the_o meridian_n at_o right_a angle_n so_o that_o the_o plane_n across_v the_o meridian_n due_a east_n and_o west_n and_o the_o pole_n be_v their_o style_n equal_o elevate_v according_a to_o the_o equinoctial_a altitude_n be_v the_o compliment_n of_o the_o pole_n elevation_n for_o in_o all_o north_n face_n plane_n or_o dial_n the_o style_n behold_v the_o north_n pole_n and_o in_o all_o south_n face_n the_o style_n behold_v the_o south_n pole_n therefore_o where_o the_o north_n pole_n be_v elevate_v there_o the_o north_n pole_n must_v be_v point_v out_o by_o the_o style_n and_o where_o the_o south_n pole_n be_v elevate_v vice_fw-la versa_fw-la the_o second_o sort_n of_o vertical_n be_v decline_v which_o eat_v such_o that_o make_v a_o acute_a angle_n with_o the_o quarter_n from_o which_o they_o decline_v for_o a_o acute_a angle_n be_v less_o than_o a_o right_a angle_n and_o a_o right_a angle_n be_v 90_o degree_n these_o decline_a plane_n lie_v in_o some_o accidental_a azimuth_n for_o suppose_v a_o dial_n to_o turn_v from_o the_o south_n or_o north_n towards_o the_o east_n or_o west_n the_o meridian_n line_n of_o the_o south_n decline_v eastward_o happen_v in_o these_o azimuth_n or_o between_o they_o south_n decline_v east_n south_n decline_v west_n s_o by_o e_o 11_o 15_o or_o to_o these_o point_n of_o the_o west_n decliner_n or_o between_o they_o s_o by_o w_n 11_o 15_o s_o s_o e_o 22_o 30_o s_o s_o w_n 22_o 30_o s_o e_o by_o s_o 33_o 45_o s_o w_n by_o s_o 33_o 45_o southeast_n 45_o 00_o south_n west_n 45_o 00_o s._n e_o by_o e_o 56_o 15_o s_o w_n by_o w_n 56_o 15_o e_o s_o e_o 67_o 30_o w_n s_o w_n 67_o 30_o e_o by_o s_o 78_o 45_o w_n by_o s_o 78_o 45_o east_n 90_o 00_o west_n 90_o 00_o again_o north_n decliner_n decline_v towards_o the_o east_n and_o west_n do_v happen_v in_o these_o azimuth_n or_o between_o they_o north_n decline_v east_n north_n decline_v west_n n_o by_o e_o 11_o 15_o or_o to_o these_o point_n of_o the_o west_n decliner_n or_o between_o they_o n_o by_o w_n 11_o 15_o n_o n_o e_o 22_o 30_o n_o n_o w_n 22_o 30_o n_o e_o by_o n_o 33_o 45_o n_n w_n by_o n_n 33_o 45_o north-east_n 45_o 00_o north_n west_n 45_o 00_o n_o e_o by_o e_o 56_o 15_o n_n w_n by_o w_n 56_o 15_o e_o n_o e_o 67_o 30_o w_n