Selected quad for the lemma: end_n

Word A	Word B	Word C	Word D	Occurrence	Frequency Band	MI	MI Band	Prominent
end_n	north_n	side_n	south_n	2,400	5	9.1749	5	true

Text snippets containing the quad

ID	Title	Author	Corrected Date of Publication (TCP Date of Publication)	STC	Words	Pages
A33999	Geometrical dyalling, or, Dyalling performed by a line of chords onely, or by the plain scale wherein is contained two several methods of inscribing the hour-lines in all plains, with the substile, stile and meridian, in their proper coasts and quantities : being a full explication and demonstration of divers difficulties in the works of learned Mr. Samuel Foster deceased ... : whereto is added four new methods of calculation, for finding the requisites in all leaning plains ... : also how by projecting the sphere, to measure off all the arks found by calculation ... : lastly, the making of dyals from three shadows of a gnomon ... / written by John Collins ...	Collins, John, 1625-1683.	1659 (1659)	Wing C5373; ESTC R17003	56,110	109

declination_n then_o for_o south_n recliner_n and_o north_n incliner_n get_v the_o difference_n but_o for_o north_n recliner_n and_o south_n incliner_n the_o sum_n of_o a_o polar_a plain_n reclination_n and_o of_o the_o re_z inclination_n of_o the_o plain_a propose_v and_o then_o it_o hold_v 1._o for_o the_o substile_n as_o the_o cousin_n of_o the_o say_a ark_n of_o difference_n or_o sum_n according_a as_o the_o plain_n lean_v northward_o or_o southwards_o be_v to_o the_o sine_fw-la of_o the_o polar_a plain_n reclination_n so_o be_v the_o tangent_fw-la of_o the_o declination_n to_o the_o tangent_fw-la of_o the_o substilar_n from_o the_o plain_n perpendicular_a 2._o for_o the_o style_n height_n as_o the_o radius_fw-la be_v to_o the_o cousin_n of_o the_o substile_n distance_n from_o the_o plain_n perpendicular_a so_o be_v the_o tangent_fw-la of_o the_o sum_n or_o difference_n of_o reclination_n as_o before_o limit_v to_o the_o tangent_fw-la of_o the_o style_n height_n 3._o meridian_n distance_n from_o the_o plain_n perpendicular_a as_o the_o radius_fw-la be_v to_o the_o sine_fw-la of_o the_o re_z inclination_n so_o be_v the_o tangent_fw-la of_o the_o declination_n to_o the_o tangent_fw-la of_o the_o meridian_n from_o the_o plain_n perpendicular_a 4._o inclination_n of_o meridian_n as_o the_o sine_fw-la of_o the_o style_n height_n be_v to_o the_o tangent_fw-la of_o the_o distance_n between_o the_o meridian_n and_o substile_n so_o be_v the_o radius_fw-la to_o the_o tangent_fw-la of_o the_o inclination_n of_o meridian_n for_o south_n recliner_n or_o north_n incliner_n the_o difference_n between_o the_o substile_n distance_n from_o the_o plain_n perpendicular_a and_o the_o meridian_n distance_n therefrom_o be_v equal_a to_o the_o distance_n between_o the_o meridian_n and_o substile_n the_o like_a for_o such_o north_n recliner_n or_o south_n incliner_n as_o recline_v or_o incline_v more_o than_o a_o equinoctial_a plain_n have_v the_o same_o declination_n but_o if_o they_o lean_v above_o it_o or_o have_v a_o lesser_a reclination_n the_o sum_n be_v the_o distance_n between_o the_o meridian_n and_o the_o substile_n the_o three_o first_o proportion_n beside_o the_o find_n of_o a_o polar_a reclination_n be_v use_v in_o the_o scheme_n for_o the_o place_n of_o the_o requisite_n and_o the_o latter_a proportion_n in_o the_o circular_a scheme_n for_o draw_v the_o hour_n another_o proportion_n for_o find_v the_o inclination_n of_o meridian_n by_o calculation_n be_v as_o the_o cousin_n of_o the_o latitude_n be_v to_o the_o sine_fw-la of_o the_o substile_n distance_n from_o the_o plain_n perpendicular_a so_o be_v the_o cousin_n of_o the_o re_z inclination_n of_o the_o plain_a to_o the_o sine_fw-la of_o the_o inclination_n of_o meridian_n the_o reclination_n of_o a_o equinoctial_a plain_n to_o any_o assign_a declination_n be_v necessary_a for_o the_o determine_n of_o divers_a affection_n the_o proportion_n to_o find_v it_o be_v as_o the_o radius_fw-la be_v to_o the_o cousin_n of_o the_o plain_n declination_n so_o be_v the_o tangent_fw-la of_o the_o latitude_n to_o the_o tangent_fw-la of_o the_o reclination_n seek_v the_o upper_a face_n of_o a_o equinoctial_a plain_n be_v call_v a_o north_n recliner_n the_o meridian_n descend_v from_o the_o end_n of_o the_o horizontal_a line_n opposite_a to_o the_o coast_n of_o declination_n the_o substilar_a line_n be_v the_o hour-line_n of_o six_o and_o make_v right_a angle_n with_o the_o meridian_n line_n direction_n for_o the_o true_a scituate_n of_o the_o meridian_n and_o substile_n suit_v to_o the_o former_a method_n of_o calculation_n 1._o for_o plain_n lean_v northwards_o if_o a_o south_n plain_n recline_v more_o than_o a_o polar_a plain_n have_v the_o same_o declination_n the_o plain_n pass_v beneath_o the_o pole_n of_o the_o world_n the_o north_n pole_n be_v elevate_v upon_o the_o upper_a face_n the_o substile_n and_o meridian_n line_n lie_v above_o that_o end_n of_o the_o plain_n horizontal_a line_n towards_o the_o coast_n of_o declination_n the_o substilar_a line_n be_v next_o the_o plain_n perpendicular_a for_o the_o under_o face_n be_v a_o north_n incliner_n the_o south_n pole_n be_v elevate_v the_o line_n lie_v in_o the_o same_o position_n below_o the_o plain_n horizontal_a line_n and_o on_o the_o contrary_a side_n of_o the_o plain_n perpendicular_a if_o a_o south_n plain_n reclination_n be_v less_o than_o the_o polar_a plain_n reclination_n the_o plain_n pass_v above_o the_o pole_n and_o the_o north_n pole_n be_v elevate_v on_o the_o under_o face_n be_v the_o incline_a side_n the_o substile_n and_o meridian_n lie_v above_o that_o end_n of_o the_o plain_n horizontal_a line_n that_o be_v opposite_a to_o the_o coast_n of_o declination_n the_o meridian_n be_v near_a the_o plain_n perpendicular_a for_o the_o upper_a face_n be_v a_o south_n recliner_n the_o south_n pole_n be_v elevate_v and_o the_o line_n lie_v in_o the_o same_o position_n below_o the_o plain_n horizontal_a line_n but_o on_o the_o contrary_a side_n of_o the_o plain_n perpendicular_a descend_n below_o that_o end_n of_o the_o horizontal_a line_n opposite_a to_o the_o coast_n of_o declination_n 2._o for_o plain_n lean_v southwards_o general_o on_o the_o upper_a face_n the_o north_n pole_n be_v elevate_v on_o the_o under_o face_n the_o south_n pole_n to_o place_v the_o substile_n such_o north_n recliner_n who_o reclination_n be_v less_o than_o the_o compliment_n of_o a_o polar_a plain_n reclination_n the_o substile_n be_v elevate_v above_o the_o end_n of_o the_o horizontal_a line_n contrary_a to_o the_o coast_n of_o declination_n and_o on_o the_o under_o face_n be_v a_o south_n incliner_n the_o substilar_n be_v depress_v below_o the_o end_n of_o the_o horizontal_a line_n opposite_a to_o the_o coast_n of_o declination_n but_o when_o the_o reclination_n be_v more_o than_o the_o compliment_n of_o the_o reclination_n of_o a_o polar_a plain_n the_o substile_n be_v to_o lie_v below_o the_o plain_n horizontal_a line_n from_o that_o end_n opposite_a to_o the_o coast_n of_o declination_n but_o for_o south_n incliner_n be_v the_o under_o face_n the_o substile_n be_v elevate_v above_o the_o end_n of_o the_o horizontal_a line_n opposite_a to_o the_o coast_n of_o declination_n to_o place_v the_o meridian_n on_o all_o north_n recliner_n the_o meridian_n lie_v below_o the_o horizontal_a line_n from_o that_o end_n thereof_o opposite_a to_o the_o coast_n of_o declination_n because_o at_o noon_n the_o sun_n be_v south_n cast_v the_o shadow_n of_o the_o style_n to_o the_o northwards_o on_o the_o under_o face_n be_v a_o south_n incliner_n it_o must_v always_o be_v place_v below_o the_o horizontal_a line_n below_o that_o end_n of_o it_o towards_o the_o coast_n of_o declination_n these_o direction_n suppose_v the_o declination_n to_o be_v denominate_v from_o the_o situation_n of_o that_o face_n of_o the_o plain_a on_o which_o the_o dial_n be_v to_o be_v make_v and_o the_o horizontal_a line_n for_o all_o dial_n that_o have_v centre_n be_v suppose_v to_o pass_v through_o the_o same_o now_o to_o the_o demonstration_n of_o the_o former_a scheme_n 1._o it_o be_v assert_v that_o if_o rv_o fall_v into_o the_o point_n b_o the_o plain_a be_v a_o polar_a plain_n in_o which_o case_n the_o style_n be_v parallel_n to_o the_o axis_n of_o the_o world_n demonstration_n every_o decline_a plain_n may_v have_v such_o a_o reclination_n find_v thereto_o as_o shall_v make_v the_o say_a plain_n become_v a_o polar_a plain_n and_o the_o proportion_n to_o find_v it_o may_v be_v thus_o as_o the_o tangent_fw-la of_o the_o latitude_n be_v to_o the_o cousin_n of_o the_o declination_n so_o be_v the_o radius_fw-la to_o the_o tangent_fw-la of_o the_o reclination_n seek_v in_o the_o former_a scheme_n if_o we_o make_v fg_o the_o cotangent_fw-la of_o the_o latitude_n radius_fw-la the_o side_n of_o the_o square_n will_v be_v the_o tangent_fw-la of_o the_o latitude_n now_o vo_o equal_a to_o fg_o be_v radius_fw-la oc_o equal_a to_o gb_o be_v the_o cousin_n of_o the_o declination_n wherefore_o a_o line_n draw_v into_o the_o centre_n from_o b_o shall_v include_v the_o angle_n of_o a_o polar_a plain_n reclination_n agreeable_a to_o the_o two_o first_o term_n of_o the_o proportion_n and_o to_o the_o direction_n for_o prick_v off_o a_o angle_n by_o tangent_n 2._o that_o the_o substile_n be_v true_a prick_v off_o upon_o v_o as_o a_o centre_n with_o the_o radius_fw-la ub_z imagine_v or_o describe_v a_o circle_n than_o be_v bg_o equal_a to_o up_o the_o sine_fw-la of_o a_o polar_a plain_n reclination_n which_o be_v equal_a to_o ha_o and_o the_o ark_n comprehend_v between_o a_o and_o b_o will_v be_v a_o quadrant_n but_o in_o a_o quadrant_n any_o line_n be_v draw_v from_o the_o limb_n pass_v through_o the_o centre_n the_o near_a distance_n from_o the_o end_n of_o one_o of_o the_o radij_fw-la will_v be_v the_o sine_fw-la of_o the_o ark_n thence_o count_v and_o the_o near_a distance_n from_o the_o other_o radius_fw-la thence_o count_v

calculate_v all_o the_o requisite_n in_o all_o upright_a plain_n the_o meridian_n lie_v in_o the_o plain_n perpendicular_a and_o if_o they_o decline_v from_o the_o south_n in_o this_o hemisphere_n it_o be_v to_o descend_v or_o run_v downward_o if_o from_o the_o north_n it_o ascend_v and_o the_o substile_n lie_v on_o that_o side_n thereof_o opposite_a to_o the_o coast_n of_o declination_n in_o east_n or_o west_n reincliner_n it_o lie_v in_o the_o plain_n horizontal_a line_n on_o the_o incline_a side_n the_o south_n pole_n be_v elevate_v but_o on_o the_o upper_a side_n the_o north_n pole_n and_o the_o substile_n lie_v above_o or_o below_o that_o end_n of_o the_o meridian_n line_n which_o point_v to_o the_o pole_n elevate_v above_o the_o plain_n on_o all_o plain_n whatsoever_o to_o calculate_v the_o hour_n distance_n as_o the_o radius_fw-la be_v to_o the_o sine_fw-la of_o the_o style_n height_n above_o the_o substile_n so_o be_v the_o tangent_fw-la of_o the_o angle_n at_o the_o pole_n to_o the_o tangent_fw-la of_o the_o hour-line_n distance_n from_o the_o substilar_a line_n by_o the_o angle_n at_o the_o pole_n be_v mean_v the_o ark_n of_o difference_n between_o the_o ark_n call_v the_o inclination_n of_o meridian_n and_o the_o distance_n of_o any_o hour_n from_o the_o meridian_n for_o all_o hour_n on_o the_o same_o side_n of_o the_o meridian_n the_o substile_n fall_v and_o the_o sum_n of_o these_o two_o ark_n for_o all_o hour_n on_o the_o other_o side_n the_o meridian_n all_o hour_n on_o any_o plain_a go_v to_o the_o contrary_a coast_n of_o their_o situation_n in_o the_o sphere_n thus_o all_o the_o morning_n or_o eastern_a hour_n go_v to_o the_o western_a coast_n of_o the_o plain_a and_o all_o the_o evening_n or_o western_a hour_n go_v to_o the_o eastern_a coast_n of_o the_o plain_n a_o three_o method_n of_o calculation_n for_o lean_v plain_n that_o be_v for_o all_o sort_n of_o plain_n that_o do_v both_o decline_v and_o also_o incline_v or_o recline_v they_o may_v be_v refer_v to_o a_o new_a latitude_n in_o which_o they_o shall_v stand_v as_o upright_a plain_n and_o then_o they_o will_v have_v a_o new_a declination_n in_o that_o new_a latitude_n which_o two_o thing_n be_v find_v the_o former_a proportion_n for_o upright_a decliner_n will_v serve_v to_o calculate_v all_o the_o ark_n require_v how_o this_o may_v be_v do_v on_o a_o globe_n be_v not_o difficult_a to_o apprehend_v have_v set_v the_o globe_n to_o your_o latitude_n let_v one_o of_o the_o meridian_n of_o the_o ecliptic_a or_o longitude_n in_o the_o heaven_n represent_v a_o decline_a recline_a plain_n this_o circle_n intersect_v the_o meridian_n of_o the_o place_n in_o two_o point_n the_o one_o above_o the_o other_o beneath_o the_o horizon_n imagine_v the_o globe_n to_o be_v so_o fix_v that_o it_o can_v move_v upon_o its_o pole_n then_o elevate_v or_o depress_v the_o globe_n so_o in_o the_o meridian_n that_o the_o point_n of_o intersection_n above_o the_o horizon_n may_v come_v under_o the_o zenith_n then_o will_v the_o pole_n of_o the_o world_n be_v elevate_v above_o the_o horizon_n to_o the_o new_a latitude_n seek_v and_o where_o the_o meridian_n of_o longitude_n that_o represent_v the_o plain_n intersect_v the_o horizon_n it_o show_v the_o new_a declination_n or_o it_o may_v be_v thus_o apprehend_v the_o distance_n between_o the_o pole_n of_o the_o world_n and_o that_o point_n of_o intersection_n that_o represent_v the_o zenith_n of_o the_o new_a latitude_n be_v the_o compliment_n of_o the_o say_a new_a latitude_n and_o the_o distance_n between_o that_o point_n and_o the_o equinoctial_a be_v the_o new_a latitude_n itself_o the_o new_a declination_n be_v the_o compliment_n of_o the_o angle_n between_o the_o plain_a and_o the_o meridian_n of_o the_o place_n a_o ark_n usual_o find_v in_o calculation_n under_o this_o denomination_n to_o find_v these_o ark_n by_o calculation_n as_o the_o radius_fw-la be_v to_o the_o cousin_n of_o the_o plain_n declination_n so_o be_v the_o cotangent_fw-la of_o the_o reinclination_n from_o the_o zenith_n to_o the_o tangent_fw-la of_o the_o meridional_a ark_n namely_o the_o ark_n of_o the_o meridian_n between_o the_o plain_a and_o the_o horizon_n and_o this_o be_v the_o first_o thing_n master_n gunter_n and_o other_o find_v for_o south_n recliner_n north_n incliner_n the_o one_o be_v the_o upper_a the_o other_o the_o under_o face_n get_v the_o difference_n between_o this_o ark_n and_o the_o latitude_n of_o the_o place_n the_o compliment_n of_o the_o say_a residue_n remainder_n or_o difference_n be_v the_o new_a latitude_n seek_v but_o for_o north_n recliner_n or_o south_n incliner_n the_o difference_n between_o this_o four_o arch_n and_o the_o compliment_n of_o the_o old_a latitude_n be_v the_o new_a latitude_n to_o find_v the_o new_a declination_n as_o the_o radius_fw-la be_v to_o the_o cousin_n of_o the_o reinclination_n so_o be_v the_o sine_fw-la of_o the_o old_a declination_n to_o the_o sine_fw-la of_o the_o new_a this_o method_n be_v hint_v to_o we_o in_o mr._n foster_n posthuma_fw-la also_o in_o his_o book_n of_o dial_v in_o anno_fw-la 1638_o where_o he_o refer_v lean_v plain_n to_o such_o a_o latitude_n wherein_o they_o may_v become_v east_n or_o west_n recliner_n but_o that_o method_n be_v to_o be_v desert_v as_o multiply_v more_o proportion_n than_o this_o and_o do_v not_o afford_v that_o instrumental_a ease_n for_o prick_v down_o the_o hour_n that_o this_o do_v affection_n determine_v such_o south_n recliner_n who_o meridional_a arch_n be_v less_o than_o the_o latitude_n pass_v beneath_o the_o pole_n and_o have_v the_o north_n pole_n elevate_v above_o they_o but_o if_o the_o meridional_a ark_n be_v great_a than_o the_o latitude_n they_o pass_v above_o the_o pole_n the_o north_n pole_n be_v elevate_v on_o the_o under_o face_n all_o other_o affection_n be_v before_o determine_v if_o the_o meridional_a arch_n be_v equal_a to_o the_o latitude_n the_o plain_a be_v a_o polar_a plain_n for_o plain_n lean_v southwards_o if_o the_o meridional_a arch_n be_v equal_a to_o the_o compliment_n of_o the_o latitude_n the_o plain_a be_v a_o equinoctial_a plain_n if_o it_o be_v more_o the_o plain_a have_v less_o reclination_n than_o a_o equinoctial_a plain_n if_o it_o be_v less_o it_o have_v more_o and_o all_o affection_n necessary_a for_o place_v and_o calculate_v the_o meridian_n line_n be_v before_o determine_v this_o method_n of_o calculation_n find_v the_o substile_n distance_n from_o the_o meridian_n not_o from_o the_o plain_n perpetdicular_a wherefore_o it_o must_v be_v show_v how_o to_o place_v it_o in_o plain_n lean_v southwards_o for_o plain_n lean_v northwards_o use_v the_o former_a direction_n to_o place_v the_o substile_n in_o north_n recliner_n in_o these_o plain_n the_o meridian_n and_o substilar_n be_v to_o meet_v at_o the_o centre_n and_o not_o be_v draw_v through_o will_v make_v sometime_o a_o acute_a sometime_o a_o obtuse_a angle_n when_o the_o plain_n meridional_a ark_n be_v great_a than_o the_o colatitude_n they_o make_v a_o obtuse_a angle_n in_o this_o case_n have_v first_o place_v the_o meridian_n line_n above_o it_o prick_v off_o the_o compliment_n of_o the_o distance_n of_o the_o substile_n from_o meridian_n to_o a_o semicircle_n but_o when_o the_o meridional_a ark_n be_v less_o than_o the_o colatitude_n prick_v off_o the_o say_a distance_n itself_o above_o the_o meridian_n line_n in_o south_n incliner_n when_o the_o plain_n meridional_a ark_n be_v great_a than_o the_o colatitude_n the_o substile_n and_o meridian_n make_v a_o acute_a angle_n when_o it_o be_v equal_a to_o the_o colatitude_n they_o make_v a_o right_a angle_n when_o it_o be_v less_o than_o the_o colatitude_n they_o make_v a_o obtuse_a angle_n and_o must_v be_v prick_v off_o by_o the_o compliment_n of_o their_o distance_n to_o a_o semicircle_n the_o substile_n always_o lie_v on_o that_o side_n of_o the_o meridian_n opposite_a to_o the_o coast_n of_o declination_n a_o four_o method_n of_o calculation_n for_o lean_v plain_n a_o advertisement_n in_o this_o method_n of_o calculation_n for_o all_o plain_n lean_v northward_o both_o upper_a and_o under_o side_n their_o declination_n be_v the_o arch_n of_o the_o horizon_n between_o the_o north_n and_o the_o azimuth_n of_o the_o plain_n south_n pole_n so_o that_o their_o declination_n be_v always_o great_a than_o a_o quadrant_n but_o for_o all_o plain_n lean_v southwards_o both_o upper_a and_o under_o face_n their_o declination_n be_v the_o arch_n of_o the_o horizon_n between_o the_o north_n and_o the_o plain_n north_n pole_n wherefore_o it_o be_v always_o less_o than_o a_o quadrant_n in_o this_o sense_n declination_n be_v use_v in_o the_o follow_a proportion_n as_o the_o sine_fw-la of_o half_a the_o sum_n of_o the_o compliment_n both_o of_o the_o latitude_n and_o of_o the_o reclination_n be_v to_o the_o sine_fw-la of_o half_a their_o difference_n so_o be_v the_o contagent_n of_o

a_o horizontal_a dial_n for_o the_o latitude_n of_o london_n 51_o degree_n 32_o minute_n cross_n the_o same_o with_o a_o perpendicular_a to_o wit_v the_o line_n of_o six_o and_o draw_v a_o oblong_a or_o square_a figure_n as_o here_o be_v do_v wherein_o to_o write_v the_o hour_n from_o m_o to_o c_o set_v off_o such_o a_o radius_fw-la as_o you_o intend_v to_o draw_v a_o circle_n withal_o which_o for_o convenience_n may_v be_v as_o big_a as_o the_o plain_n will_v admit_v and_o therewith_o upon_o c_o as_o a_o centre_n describe_z a_o circle_n and_o set_v off_o the_o radius_fw-la of_o the_o say_a circle_n from_o fletcher_o to_o d_o from_o m_o to_o k_o and_o draw_v the_o right_a line_n fd_o then_o prick_v the_o pole_n height_n or_o latitude_n of_o the_o place_n from_o f_z to_o l_o and_o from_o l_o to_o s_o and_o through_o the_o point_n s_o draw_v the_o line_n ms_n and_o it_o shall_v represent_v the_o cock_n or_o style_n height_n from_o the_o point_n l_o take_v the_o near_a distance_n to_o fm_o and_o prick_v that_o extent_n from_o fletcher_o to_o n_o on_o the_o line_n fd_o than_o a_o ruler_n lay_v from_o n_o to_o k_o where_o it_o intersect_v the_o meridian_n be_v the_o regulate_a point_n or_o point_v ☉_o then_o from_o m_o divide_v the_o circle_n into_o twelve_o equal_a part_n for_o the_o whole_a hour_n set_v the_o letter_n of_o the_o alphabet_n thereto_o and_o lay_v a_o ruler_n from_o the_o regulate_a point_n to_o each_o of_o those_o division_n and_o it_o will_v intersect_v the_o circle_n on_o the_o opposite_a side_n from_o which_o intersection_n line_n draw_v into_o the_o centre_n at_o m_o shall_v be_v the_o hour_n line_n require_v to_o be_v produce_v beyond_o the_o centre_n as_o many_o as_o be_v needful_a which_o shall_v be_v the_o hour_n before_o or_o after_o 6_o in_o the_o summer_n half_a year_n the_o half_n and_o quarter_n be_v after_o the_o same_o manner_n to_o be_v inscribe_v by_o divide_v each_o equal_a division_n of_o the_o circle_n into_o half_n and_o quarter_n this_o circular_a dial_v be_v in_o effect_n publish_v and_o invent_v by_o mr._n foster_n in_o his_o book_n of_o a_o quadrant_n in_o anno_fw-la 1638._o for_o the_o demonstration_n of_o this_o work_n will_v demonstrate_v the_o truth_n of_o those_o circular_a performance_n which_o he_o operate_v on_o the_o back_n of_o that_o quadrant_n but_o be_v more_o express_o hint_v in_o his_o posthuma_fw-la the_o demonstration_n whereof_o shall_v follow_v those_o that_o have_v plain_a table_n with_o a_o frame_n may_v have_v tangent_fw-la line_n put_v on_o the_o side_n of_o their_o frame_n and_o then_o if_o a_o centre_n be_v find_v upon_o the_o paper_n under_o the_o frame_n by_o the_o intersection_n of_o a_o ruler_n lay_v over_o those_o tangent_n the_o requisite_a division_n of_o a_o circle_n to_o any_o radius_fw-la that_o can_v be_v describe_v upon_o the_o paper_n will_v be_v most_o ready_o give_v without_o divide_v any_o circle_n or_o set_v of_o mark_n or_o letter_n thereto_o the_o frame_n keep_v fast_o that_o paper_n on_o which_o the_o draught_n of_o the_o dial_n be_v make_v which_o may_v also_o be_v supply_v from_o a_o circle_n divide_v on_o pasteboard_n cut_v out_o which_o be_v to_o be_v lace_v upon_o a_o board_n over_o the_o paper_n whereon_o the_o draught_n be_v to_o be_v make_v a_o upright_a full_a south_n dial_n this_o be_v no_o other_o than_o a_o horizontal_a dial_n in_o that_o latitude_n which_o be_v equal_a to_o the_o compliment_n of_o the_o latitude_n of_o the_o place_n you_o be_v in_o only_o the_o hour_n must_v not_o be_v continue_v beyond_o the_o centre_n and_o the_o delineation_n require_v no_o other_o direction_n than_o the_o former_a on_o a_o direct_a north_n dial_n in_o this_o latitude_n there_o will_v not_o be_v above_o two_o hour_n above_o and_o two_o hour_n beneath_o each_o end_n of_o the_o horizontal_a line_n to_o be_v express_v and_o the_o style_n will_v have_v the_o same_o elevation_n and_o point_n upward_o horizontal_a dial_n a_o upright_o south_n dial_n in_o all_o upright_a north_n and_o south_n plain_n the_o meridian_n or_o hour_n line_n of_o 12_o be_v perpendicular_a to_o the_o plain_n horizontal_a line_n if_o the_o plain_n be_v direct_v the_o height_n of_o the_o style_n above_o the_o substile_n be_v equal_a to_o the_o compliment_n of_o the_o latitude_n if_o the_o plain_n be_v south_n recline_v or_o north_n incline_v the_o height_n of_o the_o style_n above_o the_o substile_n be_v equal_a to_o the_o ark_n of_o difference_n between_o the_o compliment_n of_o the_o latitude_n and_o the_o ark_n of_o reinclination_n and_o if_o this_o latter_a ark_n be_v great_a than_o the_o former_a the_o contrary_a pole_n be_v elevate_v if_o the_o plain_n be_v south_n incline_v or_o north_n recline_v the_o height_n of_o the_o style_n above_o the_o substile_n be_v equal_a to_o the_o sum_n of_o the_o colatitude_n and_o of_o the_o reinclination_n and_o when_o this_o latter_a ark_n be_v great_a than_o the_o latitude_n the_o style_n height_n will_v be_v great_a than_o a_o quadrant_n such_o horizontal_a or_o direct_a south_n dial_n both_o upright_a and_o lean_v whereon_o the_o stile_n have_v but_o small_a elevation_n be_v to_o be_v draw_v with_o a_o double_a tangent_fw-la line_n without_o a_o centre_n wherein_o the_o follow_a direction_n for_o direct_v polar_a plain_n and_o those_o for_o other_o oblique_a plain_n whereon_o the_o stile_n have_v but_o small_a elevation_n will_v full_o direct_v you_o all_o plain_n that_o cut_v the_o axis_n of_o the_o world_n have_v a_o centre_n but_o if_o they_o be_v parallel_v thereto_o the_o stile_n have_v no_o elevation_n such_o direct_a south_n recline_v or_o north_n incline_v plain_n who_o arch_n of_o reclination_n be_v equal_a to_o the_o compliment_n of_o the_o latitude_n be_v parallel_n to_o the_o axis_n and_o be_v call_v polar_a plain_n in_o these_o the_o hour_n line_n will_v be_v tangent_fw-la line_n of_o any_o assume_v radius_fw-la and_o the_o parallel_a height_n of_o the_o stile_n above_o the_o plain_a must_v be_v make_v equal_a to_o the_o radius_fw-la of_o the_o tangent_fw-la by_o which_o the_o hour_n be_v set_v off_o first_o draw_v the_o tangent_fw-la line_n cg_o and_o perpendicular_a thereto_o acb_o upon_o c_o as_o a_o centre_n with_o any_o radius_fw-la describe_v the_o quadrant_n of_o a_o circle_n hb_o and_o prick_v off_o the_o radius_fw-la from_o c_o to_o a_o from_o h_o to_o e_o from_o b_o to_o d_o from_o d_o to_o fletcher_o from_o fletcher_o twice_o to_o g._n a_o ruler_n lay_v from_o a_o to_o e_o find_v the_o point_n 1_o on_o the_o tangent_fw-la cg_o for_o the_o hour_n line_n of_o one_o and_o lay_v from_o a_o to_o d_o find_v the_o point_n 2_o for_o the_o hour_n line_n of_o two_o the_o hour_n line_n of_o three_o be_v at_o the_o point_n h_o of_o four_o at_o the_o point_n fletcher_o of_o five_o at_o the_o point_n g_o thus_o be_v the_o whole_a hour_n easy_o insert_v now_o to_o insert_v the_o half_n and_o quarter_n divide_v the_o arch_n be_v ed_z dh_o into_o half_n and_o a_o ruler_n lay_v from_o a_o to_o those_o division_n will_v find_v point_n upon_o ch_o where_o all_o the_o half_a hour_n under_o 45d_o be_v to_o be_v graduate_v and_o if_o a_o ruler_n be_v lay_v from_o b_o to_o those_o respective_a division_n of_o the_o quadrant_n bh_o it_o will_v find_v point_n on_o the_o tangent_fw-la cg_o where_o the_o whole_a hour_n and_o half_n be_v to_o be_v graduate_v above_o 45d_o after_o the_o same_o manner_n be_v the_o quarter_n to_o be_v insert_v but_o in_o regard_n the_o half_n and_o quarter_n above_o 45d_o will_n by_o this_o direction_n be_v find_v with_o much_o uncertainty_n i_o have_v add_v the_o help_n follow_v first_o divide_v the_o half_n and_o quarter_n under_o 45d_o as_o now_o direct_v then_o for_o those_o above_o make_v use_n of_o this_o table_n in_o a_o direct_a south_n polar_a dial_n the_o distance_n of_o these_o hour_n line_n be_v equal_a to_o the_o distance_n of_o these_o hour_n line_n 3_o and_o 3_o ¼_o 3_o ½_o and_o 4_o 2_o ¼_o and_o 3_o ¾_o 4_o and_o 4_o ¼_o 4_o ¼_o and_o 4_o ½_o 4_o ¼_o and_o 4_o ¼_o ¾_o and_o 1_o ¼_o 1_o ¼_o and_o 2_o ½_o 1_o ½_o and_o double_a ¾_o and_o 1_o ¾_o 3_o ½_o and_o 3_o ¾_o double_v otherwise_o 1_o ¾_o and_o 2_o ¾_o 2_o and_o 3_o ¾_o this_o i_o do_v not_o assert_v to_o be_v absolute_o true_a but_o so_o near_o the_o truth_n that_o there_o will_v not_o arrive_v above_o one_o thousand_o part_n of_o the_o radius_fw-la difference_n in_o the_o great_a dial_n that_o be_v make_v and_o will_v be_v more_o certain_a than_o any_o sector_n though_o of_o a_o vast_a radius_fw-la or_o then_o they_o can_v with_o convenience_n be_v prick_v down_o the_o common_a way_n by_o a_o contingent_a line_n the_o meaning_n of_o the_o table_n will_v

the_o style_n height_n the_o inclination_n of_o meridian_n be_v find_v in_o the_o oblique_a spherical_a triangle_n by_o the_o proportion_n of_o opposite_a side_n and_o angle_n last_o in_o the_o right_a angle_a triangle_n zrc_o there_o be_v give_v rc_o and_o rcz_n to_o find_v rz_n the_o distance_n of_o the_o meridian_n from_o the_o plain_n perpendicular_a to_o measure_v the_o respective_a ark_n abovesaid_a 1._o the_o new_a latitude_n a_o ruler_n lay_v from_o w_o to_o z_o and_o i_o will_v give_v you_o the_o arch_n mo_o in_o the_o limb_n the_o compliment_n of_o the_o new_a latitude_n to_o wit_n 27d_o 40′_n 2._o the_o new_a declination_n the_o ruler_n lay_v from_o the_o plain_n zenith_n at_o z_o to_o its_o pole_n at_o ☉_o find_v the_o point_n q_o in_o the_o limb_n and_o the_o arch_n sq_fw-la be_v the_o new_a declination_n to_o wit_n 18d_o 56′_n 3._o the_o substile_n distance_n from_o the_o plain_n perpendicular_a a_o ruler_n lay_v from_o ☉_o to_o h_o find_v the_o point_n t_o in_o the_o limb_n and_o the_o arch_a ct_o be_v 26d_o 26′_n be_v the_o substile_n distance_n from_o the_o plain_n perpendicular_a 4._o the_o meridian_n distance_n from_o the_o plain_n perpendicular_a a_o ruler_n lay_v from_o ☉_o to_o z_o find_v the_o point_n v_o in_o the_o limb_n and_o the_o arch_n dv_o be_v 35d_o 56′_n be_v the_o meridian_n distance_n from_o the_o plain_n perpendicular_a 5._o the_o style_v height_n set_a off_o a_o quadrant_n from_o g_o to_o x_o and_o draw_v xc_o where_o it_o intersect_v the_o plain_a as_o at_o y_o be_v the_o pole_n of_o the_o arch_a fg_o then_o lay_v a_o ruler_n from_o y_o to_o h_o and_o p_o you_o shall_v find_v the_o style_n height_n in_o the_o limb_n to_o be_v the_o arch_n 2_o 3_o namely_o 26d_o 6′_n a_o south_n plain_a declin_n 40d_o east_n recline_v 60d_o lat_z 51-32′_n page_n 55_o a_o south_n plain_a declin_n 30d_o east_n recline_v 25d_o lat_n 51_o 32′_o 6._o the_o inclination_n of_o meridian_n a_o ruler_n lay_v from_o p_o to_o y_o intersect_v the_o limb_n at_o the_o arch_n w_o be_v 20d_o 58′_n and_o so_o much_o be_v the_o inclination_n of_o meridian_n the_o polar_a reclination_n cs_o be_v 31d_o 19′_n the_o scheme_n determine_v all_o the_o affection_n of_o the_o plain_a 1._o it_o show_v that_o h_o the_o point_n of_o the_o substilar_n lie_v on_o that_o side_n the_o plain_n perpendicular_a that_o be_v towards_o the_o coast_n of_o declination_n 2._o that_o z_o the_o point_n for_o the_o place_n of_o the_o meridian_n lie_v towards_o the_o same_o coast_n as_o before_o but_o below_o the_o substilar_a line_n 3._o the_o arch_n ph_o show_v you_o that_o the_o north_n pole_n be_v elevate_v above_o the_o upper_a or_o recline_a face_n after_o the_o same_o manner_n may_v all_o the_o requisite_a ark_n be_v measure_v and_o affection_n determine_v for_o all_o plain_n whatsoever_o a_o south_n plain_a decline_a 30_o degree_n eastward_o recline_v 25_o degree_n or_o a_o north_n plain_a decline_a 30_o degree_n westward_o incline_v ●●_z degree_n in_o this_o scheme_n we_o have_v the_o same_o oblique_a triangle_n pc_o ☉_o reduce_v to_o two_o right_a angle_a triangle_n psc_o and_o ps_o ☉_o sc_o be_v the_o inclination_n of_o a_o polar_a plain_n and_o rc_o the_o inclination_n of_o the_o plain_a propose_v the_o difference_n be_v sir_o and_o the_o compliment_n of_o it_o be_v the_o compliment_n of_o s_o ☉_o to_o a_o semicircle_n because_o s_o ☉_o be_v great_a than_o a_o quadrant_n and_o the_o proportion_n be_v whole_o the_o same_o though_o the_o triangle_n have_v side_n great_a than_o a_o quadrant_n the_o north_n pole_n be_v elevate_v on_o the_o incline_a face_n the_o meridian_n z_o lie_v from_o the_o plain_n perpendicular_a towards_o that_o end_n of_o the_o horizontal_a line_n opposite_a to_o the_o coast_n of_o declination_n the_o same_o way_n and_o beneath_o it_o lie_v the_o substilar_n the_o compliment_n of_o the_o new_a latitude_n zp_o be_v 10d_o 10′_n the_o new_a declination_n viz._n the_o compliment_n of_o nza_o be_v 26d_o 57′_n the_o meridians_fw-la distance_n from_o the_o plain_n perpendicular_a rz_n 13d_o 43′_n the_o substile_n distance_n therefrom_o rh_o 18d_o 22′_n the_o style_n height_n ph_o be_v 9d_o 3′_n the_o inclination_n of_o meridian_n to_o wit_n the_o angle_n cp_o ☉_o 27d_o 18′_n the_o polar_a reclination_n cs_o 34d_o 31′_n a_o south_n plain_a decline_a 40_o degree_n east_n incline_v 15_o degree_n or_o rather_o a_o north_n plain_a decline_a 40_o degree_n west_n recline_v 15_o degree_n here_o again_o the_o oblique_a triangle_n cp_o ☉_o be_v reduce_v to_o two_o right_a angle_a triangle_n psc_o and_o ps_o ☉_o and_o sir_o be_v the_o sum_n of_o the_o polar_a reclination_n sc_o and_o the_o re_z inclination_n of_o the_o plain_n propose_v cr_o and_o s_o ☉_o be_v the_o compliment_n hereof_o because_o ☉_o r_o be_v a_o quadrant_n find_v the_o equinoctial_a point_n ae_o the_o polar_a reclination_n cs_o 31d_o 19′_n the_o new_a latitude_n zae_o be_v 32d_o 15′_n the_o new_a declination_n be_v the_o compliment_n of_o nza_o be_v 38d_o 23′_n the_o meridian_n distance_n from_o the_o plain_n perpendicular_a zr_o 12d_o 33′_n the_o substile_n distance_n from_o the_o plain_n perpendicular_a rh_o 32d_o 16′_n the_o style_n height_n ph_o be_v 41d_o 30′_n the_o inclination_n of_o meridian_n ☉_o pc_o rather_o the_o acute_a angle_z ☉_o pn_o be_v 55d_o 58′_n the_o meridian_n z_o lie_v from_o the_o plain_n perpendicular_a towards_o the_o coast_n of_o declination_n on_o the_o recline_a side_n but_o must_v be_v draw_v through_o the_o centre_n because_o the_o sun_n at_o noon_n cast_v his_o shadow_n northwards_o unless_o in_o the_o torrid_a or_o freeze_a zone_n and_o the_o substile_n hlyes_n on_o the_o other_o side_n the_o plain_n perpendicular_a a_o north_n plain_a decline_a 40_o degree_n eastward_o recline_v 75_o degree_n in_o this_o plain_a likewise_o the_o oblique_a triangle_n c_o ☉_o p_o be_v reduce_v to_o two_o right_a angle_a triangle_n ps_o ☉_o and_o psc_fw-fr by_o the_o perpendicular_a ps_o which_o be_v part_n of_o the_o arch_n of_o a_o polar_a plain_a here_o cr_o more_o cs_o be_v equal_a to_o the_o sum_n of_o the_o plain_n reclination_n propose_v and_o of_o the_o polar_a plain_n reclination_n which_o be_v great_a than_o a_o quadrant_n for_o the_o arch_n r_o ☉_o be_v a_o quadrant_n now_o the_o cousin_n of_o a_o ark_n great_a than_o a_o quadrant_n be_v the_o sine_fw-la of_o that_o ark_n excess_n above_o a_o quadrant_n wherefore_o the_o sine_fw-la of_o s_o ☉_o be_v the_o cousin_n of_o the_o sum_n of_o both_o the_o reclination_n and_o the_o case_n the_o same_o as_o before_o a_o south_n plain_a declin_n 40d_o east_n incline_v 15d_o lat_n 51d_o 72′_n page_n 56_o a_o north_n plain_a declin_n 40d_o east_n reclin_n 75d_o lat_fw-la 51d_o 32′_o prick_v off_o a_o quadrant_n from_o g_o to_o x_o and_o draw_v xc_o it_o cut_v the_o plain_a at_o y_o a_o ruler_n lay_v from_o y_o to_o h_o and_o p_o find_v the_o point_n 2_o 3_o in_o the_o limb_n and_o the_o arch_n 2_o 3_o be_v 61d_o 31′_n be_v the_o style_n height_n orther_z compliment_n thereof_o to_o a_o semicircle_n may_v be_v find_v by_o measure_v the_o arch_n pf_o a_o ruler_n lay_v from_o ☉_o to_o z_o find_v the_o point_n v_o in_o the_o limb_n for_o the_o meridian_n line_n from_o which_o draw_v a_o line_n through_o the_o centre_n on_o the_o other_o side_n and_o it_o will_v be_v place_v in_o its_o true_a coast_n and_o quantity_n from_o the_o plain_n perpendicular_a at_o a_o to_o wit_n 39d_o 2′_n the_o inclination_n of_o meridian_n to_o wit_n the_o angle_n cp_o ☉_o be_v 20d_o 30′_n the_o new_a latitude_n zae_o 26d_o 38′_n the_o new_a declination_n be_v 9d_o 35′_n to_o wit_n the_o compliment_n of_o krb._n the_o polar_a reclination_n cs_o be_v 31d_o 19′_n the_o truth_n of_o this_o stereographick_a projection_n be_v full_o handle_v by_o aguilonius_fw-la in_o his_o optic_n and_o how_o to_o determine_v the_o affection_n of_o any_o angle_n of_o a_o oblique_a spherical_a triangle_n i_o have_v full_o show_v in_o a_o treatise_n call_v the_o sector_n on_o a_o quadrant_n for_o the_o resolution_n of_o spherical_a proposition_n delineation_n from_o proportion_n or_o the_o analemma_n will_v be_v more_o speedy_a and_o certain_a though_o they_o may_v also_o be_v thus_o resolve_v which_o i_o have_v handle_v at_o large_a in_o the_o mariner_n plain_a scale_n new_o plain_v to_o determine_v what_o hour_n be_v proper_a to_o all_o kind_n of_o plain_n to_o do_v this_o it_o will_v be_v necessary_a to_o project_v upon_o the_o plain_a of_o the_o horizon_n the_o summer_n and_o winter_n tropic_n get_v the_o sum_n and_o difference_n of_o the_o colatitude_n and_o of_o the_o sun_n great_a declination_n so_o we_o shall_v obtain_v his_o great_a and_o least_o meridian_n altitude_n the_o depression_n of_o the_o tropic_a of_o

the_o plain_n perpendicular_a by_o some_o term_v the_o plain_n vertical_a line_n or_o line_n of_o reclination_n at_o the_o intersection_n of_o these_o two_o line_n set_v v_o and_o upon_o it_o as_o a_o centre_n describe_z a_o circle_n the_o radius_fw-la whereof_o may_v be_v equal_a to_o 60d_o of_o a_o line_n of_o chord_n at_o the_o upper_a end_n of_o the_o vertical_a line_n set_v s_o and_o at_o the_o low_a end_n n._n as_o the_o declination_n be_v set_v it_o off_o with_o chord_n from_o s_o or_o n_o towards_o the_o true_a coast_n and_o at_o it_o set_v d_o from_o whence_o draw_v a_o line_n through_o the_o centre_n also_o set_v off_o the_o latitude_n of_o the_o place_n the_o same_o way_n and_o in_o the_o same_o quarter_n and_o at_o it_o set_v l_o from_o which_o draw_v a_o line_n to_o the_o centre_n from_o that_o end_n of_o the_o horizontal_a line_n towards_o which_o the_o declination_n be_v count_v set_v the_o inclination_n which_o as_o well_o as_o the_o reclinais_n reckon_v from_o the_o 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where_o it_o intersect_v the_o plain_n perpendicular_a set_v p_o and_o draw_v oc_o parallel_n to_o the_o vertical_a line_n cut_v we_o at_o c_o and_o make_v ha_o equal_a to_o oc_o or_o bg_o now_o by_o help_n of_o the_o three_o point_n a_o b_o c_o thus_o find_v the_o requisite_n will_v be_v easy_o prick_v off_o 1._o the_o substilar_a line_n the_o near_a distance_n from_o a_o to_o rv_o set_v on_o the_o line_n co_z produce_v if_o need_v be_v from_o c_o to_o i_o the_o same_o way_n the_o distance_n be_v take_v from_o a_o that_o be_v if_o downward_o or_o upward_o the_o other_o must_v be_v so_o too_o will_v show_v where_o vi_o the_o substilar_a line_n be_v to_o be_v draw_v 2._o the_o style_v height_n the_o least_o distance_n from_o b_o to_o rv_o set_v on_o a_o perpendicular_a raise_v upon_o the_o substile_n from_o the_o point_n i_o will_v find_v the_o point_n k_o from_o whence_o draw_v a_o line_n into_o the_o centre_n at_o v_o and_o the_o angle_z juk_n will_v show_v how_o much_o the_o style_n be_v elevate_v above_o the_o substile_n and_o if_o the_o work_n be_v true_a vk_o and_o vf_o will_v be_v equal_a whence_o it_o follow_v that_o the_o trouble_n of_o raise_v the_o mention_v perpendicular_a may_v be_v shun_v 3._o the_o meridian_n line_n the_o least_o distance_n from_o c_o to_o rv_o set_v upon_o the_o line_n opb_n from_o p_o on_o that_o side_n which_o be_v far_a from_o the_o line_n rv_o will_v find_v the_o point_n m_o from_o whence_o a_o line_n draw_v into_o the_o centre_n shall_v be_v the_o meridian_n line_n and_o i_o add_v that_o on_o all_o north_n recliner_n in_o the_o northern_a hemisphere_n the_o meridian_n line_n must_v be_v draw_v through_o the_o centre_n on_o the_o other_o side_n and_o than_o the_o construction_n of_o the_o scheme_n will_v place_v it_o below_o the_o plain_n horizontal_a line_n which_o be_v its_o proper_a situation_n for_o the_o say_a upper_a face_n and_o for_o the_o under_o face_n the_o scheme_n place_v it_o true_a without_o caution_n 4._o a_o polar_a plain_n how_o know_v if_o the_o line_n rv_o fall_v just_a into_o b_o the_o plain_n be_v a_o polar_a plain_n in_o such_o a_o plain_a the_o style_n have_v no_o height_n but_o be_v parallel_n to_o the_o axis_n in_o this_o case_n the_o inclination_n of_o meridian_n must_v be_v know_v direction_n for_o such_o plain_n must_v afterwards_o follow_v but_o if_o the_o line_n rv_o fall_v between_o the_o point_n b_o and_o p_o then_o must_v the_o substile_n style_n and_o meridian_n be_v all_o draw_v through_o the_o centre_n and_o stand_v beyond_o on_o the_o other_o side_n annotation_n on_o the_o former_a scheme_n 1._o that_o for_o latitude_n under_o 45d_o this_o construction_n of_o the_o scheme_n suppose_v the_o side_n of_o the_o square_a produce_v which_o will_v therefore_o be_v liable_a to_o large_a excursion_n or_o other_o inconvenience_n wherefore_o for_o such_o latitude_n i_o shall_v somewhat_o vary_v from_o the_o construction_n prescribe_v 2._o in_o find_v the_o substilar_a line_n in_o stead_n of_o erect_v ci_o upon_o vc_o you_o may_v prick_v the_o same_o on_o the_o vertical_a line_n vn_fw-fr and_o thereto_o erect_v vc_o and_o get_v the_o point_n i_o possible_o with_o more_o certainty_n by_o find_v the_o intersection_n of_o two_o ark_n where_o the_o say_a point_n be_v to_o pass_v 3._o in_o prick_v off_o the_o meridian_n line_n the_o distance_n of_o c_o from_o the_o centre_n may_v be_v double_v or_o triple_a but_o so_o must_v likewise_o up_o and_o the_o near_a distance_n from_o c_o to_o rv_o erect_v on_o a_o line_n draw_v parallel_n to_o we_o pass_v through_o the_o point_n p_o so_o find_v and_o in_o stead_n of_o draw_v such_o a_o parallel_n the_o point_n m_o may_v be_v find_v by_o the_o intersection_n of_o two_o arks_n 4._o that_o this_o scheme_n place_v the_o requisite_n of_o all_o dial_n in_o their_o true_a coast_n and_o quantity_n yet_o notwithstanding_o if_o this_o scheme_n be_v hold_v before_o a_o looking-glass_n the_o effigy_n thereof_o in_o the_o glass_n show_v how_o the_o scheme_n will_v happen_v and_o place_v the_o requisite_n namely_o the_o style_n substile_n and_o meridian_n for_o a_o plain_n of_o the_o same_o denomination_n but_o decline_v to_o the_o contrary_a coast_n and_o if_o the_o face_n of_o the_o say_a scheme_n be_v lay_v upon_o a_o window_n and_o the_o substile_n style_n and_o meridian_n be_v continue_v through_o the_o centre_n on_o the_o backside_n thereof_o it_o show_v you_o how_o these_o requisite_n be_v to_o be_v place_v on_o the_o opposite_a side_n of_o the_o plain_a which_o be_v do_v may_v be_v hold_v before_o a_o looking-glass_n as_o before_o and_o will_v be_v represent_v for_o the_o contrary_a declination_n of_o that_o opposite_a face_n the_o truth_n of_o all_o which_o will_v be_v confirm_v from_o the_o scheme_n itself_o this_o scheme_n for_o decline_a recline_a or_o incline_v plain_n use_v a_o new_a method_n of_o calculation_n derive_v from_o a_o oblique_a triangle_n in_o the_o sphere_n wherein_o there_o be_v two_o side_n with_o the_o angle_n comprehend_v give_v to_o find_v both_o the_o other_o angle_n which_o be_v reduce_v by_o a_o perpendicular_a to_o two_o right_a angle_a triangle_n from_o which_o the_o follow_a proportion_n be_v derive_v i_o shall_v therefore_o first_o deliver_v the_o say_a method_n then_o demonstrate_v that_o the_o say_a proportion_n be_v carry_v on_o in_o the_o scheme_n and_o last_o from_o the_o sphere_n show_v how_o those_o proportion_n do_v arise_v 1._o to_o find_v a_o polar_a plain_n reclination_n or_o inclination_n as_o the_o radius_fw-la be_v to_o the_o cousin_n of_o the_o plain_n declination_n so_o be_v the_o cotangent_fw-la of_o the_o latitude_n to_o the_o tangent_fw-la of_o the_o reclination_n or_o inclination_n seek_v 2._o to_o find_v the_o distance_n of_o the_o substile_n or_o meridian_n line_n from_o the_o plain_n perpendicular_a for_o a_o polar_a plain_n as_o the_o radius_fw-la be_v to_o the_o sine_fw-la of_o a_o polar_a plain_n reclination_n so_o be_v the_o tangent_fw-la of_o the_o declination_n to_o the_o tangent_fw-la of_o the_o substilar_a line_n from_o the_o plain_n perpendicular_a 3._o the_o inclination_n of_o meridian_n as_o the_o radius_fw-la be_v to_o the_o sine_fw-la of_o the_o latitude_n so_o be_v the_o tangent_fw-la of_o the_o declination_n to_o the_o tangent_fw-la of_o the_o inclination_n of_o meridian_n affection_n of_o a_o polar_a plain_n the_o substilar_n on_o the_o upper_a face_n lie_v above_o that_o end_n of_o the_o horizontal_a line_n towards_o the_o coast_n of_o declination_n and_o the_o meridian_n lie_v parallel_n to_o the_o substile_n beyond_o it_o towards_o that_o end_n of_o the_o horizontal_a line_n that_o be_v towards_o the_o coast_n of_o declination_n for_o decline_a recline_a or_o incline_v plain_n first_o find_v a_o polar_a plain_n reclination_n for_o the_o same_o