south_n or_o north_n may_v be_v term_v by_o that_o part_n which_o it_o respect_v some_o have_v labour_v much_o to_o clear_v if_o you_o chance_v to_o find_v out_o the_o rock_n where_o the_o loadstone_n do_v grow_v where_o you_o purpose_v to_o take_v out_o a_o part_n of_o the_o same_o mark_v your_o part_n with_o note_n for_o the_o north_n and_o south_n then_o cut_v out_o your_o piece_n out_o of_o the_o rock_n and_o put_v it_o into_o a_o bowl_n to_o swim_v on_o the_o water_n and_o your_o mark_n will_v be_v turn_v to_o a_o contrary_a situation_n to_o that_o they_o have_v in_o the_o rock_n and_o the_o north_n note_n will_v be_v turn_v south_n and_o the_o south_n north_n and_o so_o will_v the_o rock_n of_o the_o great_a magnet_n itself_o if_o it_o be_v so_o place_v make_v the_o like_a alteration_n in_o his_o situation_n by_o the_o general_a conformation_n and_o direction_n of_o the_o mighty_a magnet_n the_o globe_n of_o the_o earth_n therefore_o the_o reason_n why_o that_o the_o loadstone_n in_o the_o boat_n upon_o the_o water_n turn_v bend_v and_o seat_v itself_o to_o a_o contrary_a situation_n to_o that_o he_o receive_v and_o have_v primary_o while_o he_o be_v in_o the_o bowel_n of_o the_o earth_n and_o unite_v with_o the_o body_n of_o the_o great_a magnet_n be_v because_o that_o every_o piece_n and_o part_n of_o a_o loadstone_n be_v separate_v from_o the_o whole_a whereof_o he_o be_v a_o part_n be_v now_o become_v a_o perfect_a complete_a and_o sole_a magnetical_a body_n and_o be_v as_o it_o be_v a_o little_a earth_n of_o itself_o have_v all_o the_o propriety_n magnetical_a that_o the_o great_a earth_n have_v as_o his_o two_o pole_n meridians_fw-la aequator_fw-la and_o such_o like_a and_o therefore_o according_a unto_o the_o nature_n of_o magnetical_a union_n hereafter_o speak_v of_o in_o the_o xxii_o chapter_n will_v in_o no_o wise_n endure_v and_o can_v be_v suffer_v to_o match_v and_o seat_n itself_o as_o he_o do_v before_o but_o think_v it_o more_o natural_a and_o a_o thing_n of_o more_o perfection_n and_o conveniency_n to_o turn_v his_o aspect_n a_o contrary_a way_n to_o that_o he_o have_v primary_o at_o his_o first_o make_v and_o endowment_n with_o magnetical_a virtue_n this_o alteration_n of_o polity_n be_v to_o be_v observe_v likewise_o in_o magnetical_a needle_n and_o long_a piece_n of_o iron_n that_o be_v touch_v and_o animate_v and_o adhere_v to_o that_o part_n of_o the_o loadstone_n which_o seat_v itself_o north_n which_o be_v at_o liberty_n and_o separate_v from_o the_o loadstone_n will_v turn_v that_o part_n and_o end_n that_o be_v touch_v at_o the_o north_n pole_n and_o seat_n it_o always_o in_o the_o south_n and_o it_o shall_v be_v sufficient_a for_o use_v to_o know_v and_o mark_v with_o a_o note_n which_o be_v the_o north-pole_n of_o your_o magnet_n and_o which_o be_v the_o south-pole_n there_o be_v another_o virtue_n in_o the_o pole_n of_o the_o loadstone_n and_o that_o be_v that_o the_o south-pole_n turn_v downward_o will_v take_v up_o more_o than_o the_o north-pole_n will_v and_o the_o north_n pole_n will_v erect_v a_o great_a weight_n thâ—n_o the_o south_n part_n or_o pole_n will_v as_o some_o say_v tab._n iii_o fig._n 2._o a_o b._n but_o i_o have_v always_o observe_v that_o the_o pole_n of_o the_o magnet_n that_o seat_v itself_o north_n be_v always_o the_o most_o vigorous_a and_o strong_a pole_n to_o all_o intent_n and_o purpose_n unless_o he_o lack_v the_o quantity_n and_o like_a substance_n the_o south_n part_n have_v these_o pole_n which_o be_v in_o the_o great_a magnet_n of_o the_o globe_n of_o the_o earth_n have_v a_o marvellous_a strong_a magnetical_a power_n impart_v unto_o they_o that_o they_o can_v be_v turn_v either_o high_o or_o low_o or_o move_v to_o the_o right_a hand_n or_o to_o the_o left_a but_o hold_v the_o earth_n continual_o in_o a_o true_a and_o certain_a position_n and_o place_n and_o will_v if_o any_o force_n or_o power_n shall_v move_v their_o great_a strength_n awry_o from_o the_o true_a syte_n and_o meridian_n latitude_n return_v to_o their_o right_a syte_n and_o place_n again_o and_o this_o be_v the_o true_a virtue_n of_o the_o pole_n of_o globe_n which_o the_o sun_n and_o jupiter_n have_v as_o well_o as_o the_o earth_n these_o pole_n be_v most_o certain_a and_o sure_a mark_n for_o all_o magnetical_a body_n convenient_o carry_v to_o direct_v themselves_o unto_o tab._n iii_o fig._n 9_o as_o appear_v by_o our_o compass_n which_o in_o all_o place_n of_o the_o world_n turn_v their_o lily_n into_o the_o north_n whereby_o the_o mariner_n know_v what_o course_n to_o take_v and_o the_o magnetical_a pole_n &_o pole_n of_o the_o world_n both_o arctic_a &_o antarctic_a be_v all_o one_o and_o not_o diverse_a as_o some_o have_v imagine_v which_o have_v lose_v both_o their_o oil_n and_o their_o pain_n and_o this_o be_v true_a by_o the_o demonstration_n and_o motion_n of_o the_o inclinatory-needle_n although_o there_o be_v many_o momentary_a cause_n of_o variation_n these_o pole_n hold_v the_o earth_n certain_o in_o her_o polar_n position_n while_o she_o turn_v herself_o about_o to_o receive_v the_o sunbeam_n and_o influence_n of_o the_o star_n and_o planet_n for_o the_o generation_n and_o maintenance_n of_o all_o inferior_a body_n upon_o she_o in_o she_o &_o proceed_v out_o of_o she_o last_o these_o pole_n of_o the_o earth_n in_o certain_a great_a number_n of_o year_n have_v natural_o a_o little_a inclination_n in_o the_o polar_n circle_n of_o the_o zodiac_n for_o the_o receive_n and_o moderation_n of_o the_o beam_n light_n and_o influence_n of_o the_o star_n whereby_o the_o progression_n and_o anticipation_n of_o the_o equinoctial_a and_o the_o mutation_n of_o the_o great_a declination_n of_o the_o sun_n be_v perfect_o understand_v to_o prevent_v the_o feign_v of_o many_o sphere_n above_o the_o star_n as_o the_o nine_o ten_o and_o eleven_o and_o their_o impossible_a motion_n in_o fashion_v the_o loadstone_n it_o be_v convenient_a to_o make_v flat_a or_o roundish_n the_o end_n of_o the_o magnet_n where_o the_o pole_n be_v the_o better_a to_o cap_n and_o arm_v they_o with_o iron_n or_o steel_n to_o lift_v up_o their_o convenient_a weight_n tab._n iii_o fig._n 2._o &_o 12._o and_o as_o the_o most_o be_v tab._n i._n at_o the_o pole_n the_o inclinatory-needle_n do_v not_o incline_v oblique_o to_o the_o axis_fw-la tab._n iii_o fig._n 6._o as_o the_o needle_n c_o c_o to_o a_o b_o the_o axis_fw-la as_o in_o other_o place_n but_o aspect_v the_o pole_n direct_o and_o perpendicular_o as_o tab._n iii_o fig._n 1._o the_o needle_n c_o respect_v the_o axis_fw-la b_o a_o direct_o &_o make_v one_o line_n with_o it_o also_o at_o the_o north-pole_n that_o point_n of_o the_o directory-needle_n and_o compass_n that_o do_v behold_v the_o south_n of_o himself_o be_v apply_v to_o the_o north-pole_n do_v turn_v as_o some_o think_v but_o this_o be_v true_a only_a at_o the_o aequator_fw-la in_o the_o space_n between_o the_o aequator_fw-la &_o the_o 34_o degree_n as_o be_v demonstrate_v in_o the_o xii_o chap._n &_o not_o at_o the_o pole_n itself_o and_o the_o place_n near_o adjoin_v for_o at_o the_o north-pole_n if_o the_o magnet_n be_v true_o place_v that_o point_n that_o point_v towards_o the_o south_n do_v point_n to_o the_o south_n direct_o and_o in_o the_o place_n near_o adjoin_v do_v it_o oblique_o a_o wire_n touch_v magnetical_o have_v two_o pole_n as_o tab._n iii_o fig._n 5._o the_o one_o end_v a_o be_v north_n and_o b_o of_o the_o nature_n of_o the_o south_n chap._n vii_o of_o the_o axis_n the_o axis_n or_o axletree_n of_o the_o magnet_n be_v a_o line_n that_o pass_v from_o the_o one_o pole_n to_o the_o other_o by_o the_o centre_n of_o the_o body_n of_o the_o loadstone_n and_o after_o this_o order_n there_o be_v a_o axis_n understand_v to_o be_v in_o the_o earth_n tab._n iii_o fig._n 1._o 2._o 3._o &_o 9_o 10._o in_o fashion_v of_o magnet_n if_o a_o piece_n be_v take_v away_o parallel_n from_o the_o axis_n then_o in_o these_o two_o lodestone_n the_o axis_n with_o his_o pole_n will_v be_v remove_v into_o the_o midst_n of_o the_o stone_n as_o tab._n iii_o fig_n 3._o a_o b_o the_o axis_n in_o either_o piece_n be_v in_o the_o midst_n of_o the_o stone_n so_o whether_o that_o bunch_n be_v take_v away_o from_o the_o loadstone_n or_o any_o cavity_n fill_v the_o axis_n will_v always_o be_v place_v in_o the_o midst_n of_o the_o most_o vigorous_a bulk_n of_o the_o loadstone_n as_o a_o b_o in_o every_o figure_n it_o be_v say_v in_o the_o latter_a end_n of_o the_o v._o chapter_n that_o if_o a_o loadstone_n be_v sawen_v in_o two_o part_n from_o one_o pole_n to_o the_o other_o upon_o the_o axis_n that_o the_o pole_n and_o axis_n will_v be_v find_v in_o the_o
midst_n of_o the_o bulk_n of_o the_o two_o piece_n parallel_v to_o the_o old_a axis_n tab._n iii_o fig._n 3._o and_o the_o pole_n of_o the_o lesser_a piece_n will_v be_v alter_v also_o when_o as_o a_o side_n of_o the_o loadstone_n shall_v be_v make_v flat_a and_o parallel_n to_o his_o axis_n that_o side_n will_v attract_v hold_v and_o unite_v unto_o he_o long_a piece_n of_o iron_n sideling_n and_o paralelly_n tab._n iii_o as_o fig._n 4._o c_o the_o piece_n of_o iron_n be_v adjoin_v paralelly_n to_o a_o b_o the_o axis_n as_o the_o pole_n erect_v perpendicular_o to_o it_o tab._n iii_o fig._n â—_o the_o weight_n c_o be_v attract_v plim-wise_a to_o the_o axis_n a_o b._n and_o also_o two_o magnet_n somewhat_o long_o in_o form_n swim_v in_o their_o vessel_n upon_o the_o water_n will_v adhere_v and_o unite_v in_o a_o meridian_n parallel_v to_o their_o axis_n tab._n xi_o fig._n 5._o that_n if_o one_o of_o their_o vessel_n be_v hale_v the_o other_o vessel_n with_o the_o other_o magnet_n his_o load_n will_v follow_v both_o be_v fast_o grapple_v together_o so_o that_o they_o can_v part_v asunder_o likewise_o take_v two_o magnet_n that_o be_v arm_v with_o their_o tooth_n of_o iron_n or_o steel_n descend_v from_o these_o pole_n at_o right_a angle_n to_o the_o axis_n to_o take_v up_o with_o both_o tooth_n together_o &_o have_v their_o axis_n both_o of_o one_o length_n as_o tab._n iii_o fig._n 12._o place_n the_o tooth_n descend_v from_o the_o south-pole_n unto_o the_o tooth_n that_o have_v the_o vigour_n from_o the_o north-pole_n and_o they_o will_v cleave_v and_o unite_v together_o as_o one_o body_n and_o loadstone_n paralell-wise_a to_o the_o axis_n and_o the_o one_o though_o he_o be_v the_o weak_a will_v lift_v up_o the_o hevy_a perpendicular_o also_o all_o magnetical_a body_n whether_o it_o be_v at_o the_o aequator_fw-la at_o the_o pole_n or_o at_o any_o intermediall_a part_n between_o these_o two_o do_v all_o of_o they_o apply_v conform_v and_o unite_v their_o body_n together_o according_a to_o a_o correspondency_n of_o their_o axis_n as_o shall_v be_v declare_v hereafter_o and_o not_o with_o their_o centre_n to_o the_o centre_n of_o the_o other_o body_n if_o a_o wire_n be_v touch_v magnetical_o at_o one_o end_n the_o vigour_n will_v run_v through_o all_o the_o wire_n or_o axis_n and_o have_v a_o contrary_a virtue_n in_o the_o other_o end_n the_o one_o north_n the_o other_o south_n and_o half_o the_o axis_n will_v be_v of_o one_o nature_n and_o half_a on_o another_o tab._n iii_o fig._n 5._o the_o end_n of_o the_o wire_n at_o a_o be_v of_o the_o nature_n of_o the_o north-pole_n and_o the_o end_n at_o b_o be_v of_o the_o south-pole_n we_o say_v in_o the_o four_o chapter_n that_o the_o moon_n do_v always_o turn_v one_o pole_n of_o her_o body_n towards_o the_o centre_n of_o the_o earth_n and_o move_v near_a &_o further_o from_o the_o same_o as_o if_o that_o a_o long_a axletree_n be_v pass_v through_o her_o body_n &_o fasten_v in_o a_o joint_n to_o the_o centre_n of_o the_o earth_n on_o which_o she_o shall_v make_v her_o epigeum_n and_o peregeum_n in_o like_a manner_n it_o be_v to_o be_v probable_o gather_v that_o the_o earth_n may_v natural_o have_v a_o helicall_a &_o spirall_n virtue_n to_o move_v on_o the_o cilind_a of_o her_o axis_n in_o spirall_n line_n not_o unlike_o the_o arch_n of_o the_o longitude_n of_o the_o day_n to_o perform_v the_o zodiacall_a motion_n partly_o illustrate_v in_o the_o xxii_o chapter_n by_o the_o bead_n in_o a_o instrument_n of_o ring_n for_o the_o find_n of_o the_o variation_n where_o the_o bead_n as_o a_o earth_n be_v place_v in_o the_o axis_n high_a and_o low_o according_a to_o zodiacall_a direction_n and_o magnetical_a virtue_n will_v permit_v this_o spirall_n motion_n like_v as_o the_o sap_n pass_v in_o the_o earth_n from_o the_o north_n hemisphere_n to_o the_o south_n province_n it_o be_v a_o thing_n worthy_a of_o better_a observation_n from_o the_o truncke-glasse_n to_o know_v whether_o the_o axis_n of_o jupiter_n and_o the_o sun_n be_v parallel_v one_o to_o the_o other_o and_o with_o the_o axis_n of_o the_o earth_n which_o be_v to_o be_v examine_v by_o the_o turn_n of_o the_o spot_n about_o chap._n viii_o of_o the_o aequator_fw-la in_o all_o magnetical_a body_n there_o be_v a_o aequator_fw-la or_o middle_a fence_n that_o divide_v the_o whole_a body_n in_o the_o midst_n between_o the_o two_o pole_n like_o a_o middrift_n into_o two_o equal_a part_n hemisphere_n and_o province_n outward_o in_o the_o middle_a part_n in_o the_o great_a circumference_n from_o the_o pole_n there_o be_v a_o aequator_fw-la circle_n or_o line_n that_o devide_v the_o northpart_n of_o the_o stone_n from_o the_o south_n part_n as_o by_o a_o border-marke_a so_o that_o if_o a_o directory-needle_n touch_v magnetical_o be_v convey_v to_o any_o part_n between_o this_o aequator_fw-la and_o the_o pole_n present_o the_o end_n of_o the_o needle_n that_o be_v of_o the_o nature_n of_o the_o other_o province_n beyond_o the_o line_n of_o the_o aequator_fw-la will_v turn_v about_o from_o that_o part_n and_o the_o other_o end_n of_o the_o needle_n that_o have_v affinity_n and_o natural_a conformity_n with_o the_o pole_n of_o that_o province_n will_v offer_v itself_o as_o tab._n iii_o fig._n 6._o 7._o 9_o 10._o in_o the_o province_n of_o the_o north-pole_n a_o above_o the_o aequator_fw-la and_o prick_v line_n the_o beard_a end_n of_o the_o needle_n do_v only_o offer_v itself_o and_o desire_v to_o apply_v and_o unite_v to_o that_o part_n but_o the_o cross_a end_n of_o the_o needle_n will_v fly_v from_o it_o so_o this_o cross_a end_n of_o the_o needle_n will_v only_o affect_v to_o behold_v the_o south_n province_n under_o the_o aequator_n prick_v line_n to_o the_o pole_n b_o and_o the_o beard_a end_n of_o the_o needle_n will_v shift_v away_o this_o assertion_n be_v not_o only_o find_v to_o be_v true_a in_o the_o loadstone_n but_o also_o in_o other_o form_n of_o iron_n and_o steel_n and_o in_o the_o great_a earth_n itself_o as_o take_v a_o round_a plate_n of_o iron_n that_o have_v lie_v some_o time_n quiet_o without_o stir_v as_o tab._n iii_o fig._n 6._o or_o a_o ring_n of_o iron_n tab._n iii_o fig._n 7._o and_o offer_v the_o side_n of_o this_o plate_n or_o ring_n unto_o the_o needle_n turn_v they_o about_o and_o the_o beard_a point_n of_o the_o needle_n will_v respect_v the_o one_o half_a of_o these_o iron_n circle_n and_o the_o cross_a part_n of_o the_o needle_n be_v of_o the_o nature_n of_o the_o other_o semicircle_n will_v apply_v and_o have_v respect_n thereto_o here_o in_o these_o iron_n form_n the_o aequator_fw-la and_o limit_fw-la of_o the_o two_o semicircle_n be_v better_a perceive_v where_o it_o shall_v be_v mark_v than_o the_o pole_n be_v for_o when_o the_o magnetical_a needle_n be_v once_o past_o the_o bound_n of_o the_o aequator_fw-la present_o he_o turn_v about_o his_o other_o point_n that_o respect_v the_o contrary_a semicircle_n or_o rather_o hemisphere_n the_o which_o for_o distinction_n sake_n may_v be_v paint_v of_o a_o red_a colour_n moreover_o if_o a_o directory-needle_n or_o mariner_n compass_n be_v place_v near_o the_o aequator_fw-la of_o a_o loadstone_n of_o these_o iron_n form_n or_o of_o the_o earth_n they_o will_v situate_v themselves_o parallel_n to_o the_o axis_fw-la of_o the_o pole_n as_o tab._n iii_o fig._n 6._o 7._o and_o tab._n vi_o fig._n 1._o tab._n vii_o fig._n 1._o 2._o and_o incline_v neither_o to_o one_o pole_n or_o the_o other_o be_v place_v in_o a_o right_a sphere_n where_o the_o pole_n lie_v in_o the_o horizon_n the_o needle_n stand_v in_o equal_a balance_n with_o the_o horizon_n look_v north_n and_o south_n parallel_n to_o the_o axis_fw-la whereas_o it_o have_v be_v declare_v in_o the_o vi_o chapter_n before_o of_o the_o vigour_n of_o the_o pole_n that_o the_o vigour_n and_o strength_n magnetical_a proceed_v by_o little_a and_o little_a from_o the_o aequator_fw-la to_o the_o pole_n increase_v in_o their_o passage_n by_o the_o meridians_fw-la unto_o the_o pole_n to_o the_o end_n to_o augment_v their_o virtue_n of_o retain_v &_o consist_v most_o firm_o and_o constant_o in_o the_o north_n and_o south_n whereby_o the_o aequator_fw-la of_o the_o earth_n be_v leave_v void_a of_o all_o virtue_n of_o consistence_n and_o leave_v free_a or_o rather_o deprive_v of_o constancy_n and_o retain_v of_o any_o firm_a situation_n and_o remain_v natural_o by_o reason_n of_o his_o great_a circumference_n and_o weak_a renitency_n most_o apt_a and_o prone_a for_o circular_a motion_n which_o by_o her_o star_n like_o vigour_n and_o intelligence_n have_v this_o her_o globous_a body_n so_o firm_o fasten_v natural_o in_o her_o pole_n as_o it_o be_v in_o two_o strong_a pillar_n and_o fit_v in_o the_o aequator_fw-la and_o parallel_n as_o
he_o will_v lose_v all_o his_o potency_n polare_fw-la and_o directive_a faculty_n it_o be_v also_o conveient_a to_o understand_v that_o have_v touch_v and_o animate_v a_o needle_n magnetical_o if_o contrary_a to_o this_o excite_a the_o needle_n be_v rub_v from_o the_o point_n to_o the_o midst_n upon_o the_o pole_n of_o a_o magnet_n cap_n or_o tooth_n so_o any_o long_a piece_n of_o iron_n or_o steel_n else_o as_o knife_n dagger_n or_o sword_n which_o before_o will_v have_v attract_v and_o lift_v up_o magnetical_o other_o iron_n of_o some_o weight_n by_o be_v thus_o rub_v back_o again_o from_o the_o point_n to_o the_o midst_n have_v that_o virtue_n take_v away_o which_o they_o receive_v before_o from_o the_o loadstone_n and_o be_v as_o void_a of_o all_o virtue_n attractive_a as_o they_o be_v before_o they_o touch_v the_o magnet_n so_o that_o they_o neither_o will_v adhere_v or_o lift_v up_o the_o least_o weight_n which_o be_v nothing_o to_o that_o they_o will_v have_v do_v be_v excite_v if_o two_o magnetical_a body_n be_v join_v together_o at_o their_o pole_n these_o two_o pole_n that_o touch_v together_o have_v the_o nature_n of_o the_o aequator_fw-la and_o will_v not_o then_o excite_v or_o hold_v a_o needle_n thus_o touch_v a_o adamant_n do_v loose_a much_o of_o his_o strength_n if_o he_o be_v diminish_v and_o have_v any_o part_n of_o his_o body_n take_v from_o he_o especial_o if_o his_o figure_n be_v good_a before_o some_o have_v think_v that_o certain_a form_n of_o the_o magnet_n which_o may_v be_v allow_v for_o convenient_a figure_n do_v lessen_v the_o magnetical_a vigour_n chief_o in_o their_o attraction_n as_o a_o spherical_a or_o plain_a superficies_n in_o the_o pole_n of_o globe_n and_o of_o square_a and_o angulous_a figure_n but_o these_o full_a and_o obtuse_a superficies_n and_o flat_a form_n at_o the_o pole_n do_v attract_v best_o with_o their_o cap_n and_o lift_v up_o most_o as_o have_v be_v declare_v in_o the_o eighteen_o chapter_n before_o for_o this_o vigour_n proceed_v from_o the_o substance_n of_o the_o adamant_n better_a than_o in_o long_a and_o pike_a form_n which_o have_v very_o little_a substance_n leave_v about_o the_o pole_n yet_o this_o assertion_n be_v partly_o true_a in_o such_o like_a form_n of_o iron_n for_o in_o this_o mettle_n the_o long_a fashion_n be_v best_a a_o round_a plate_n of_o iron_n to_o the_o pole_n cap_n or_o tooth_n of_o the_o magnet_n disperse_v and_o diminish_v the_o direct_a extent_n of_o his_o vigour_n likewise_o a_o long_a plate_n or_o square_a piece_n of_o iron_n or_o steel_n tab._n ii_o fig._n 9_o 17._o apply_v to_o the_o two_o tooth_n of_o the_o loadstone_n do_v deform_v the_o figure_n of_o the_o body_n and_o deprave_v his_o virtue_n chap._n xx._n of_o the_o commutation_n of_o the_o virtue_n polar_a the_o polar_a virtue_n be_v say_v to_o be_v change_v when_o as_o the_o north-pole_n be_v make_v the_o south-pole_n and_o the_o south-pole_n alter_v into_o the_o nature_n of_o the_o north-pole_n in_o magnetical_a body_n this_o thing_n be_v effect_v in_o a_o weak_a magnet_n by_o place_v he_o a_o long_a time_n by_o a_o magnet_n that_o be_v strong_a unnatural_o which_o be_v do_v by_o adjoin_v the_o two_o north-pole_n or_o the_o two_o southpole_n of_o the_o two_o loadstone_n together_o a_o long_a time_n where_o the_o strong_a magnet_n will_v by_o his_o neighbourhood_n take_v away_o that_o contrary_a nature_n of_o pollity_n that_o be_v in_o the_o weak_a loadstone_n and_o will_v make_v and_o infuse_v into_o he_o that_o polar_n virtue_n which_o do_v natural_o unite_v unto_o the_o pole_n of_o the_o strong_a adamant_n make_v that_o point_n and_o pole_n to_o be_v south_n which_o be_v north._n this_o thing_n be_v not_o only_o experience_v in_o two_o several_a magnet_n lodging_n together_o in_o one_o chamber_n and_o box_n but_o also_o if_o you_o shall_v agglutinate_v and_o cement_v diverse_a magnet_n of_o diverse_a strength_n together_o they_o will_v all_o of_o they_o be_v conjoin_v and_o unite_v together_o as_o if_o it_o be_v one_o stone_n and_o body_n and_o may_v be_v make_v and_o fashion_v into_o a_o convenient_a figure_n and_o will_v be_v endue_v with_o one_o vigour_n magnetical_a of_o one_o province_n though_o separate_v they_o be_v of_o diverse_a polity_n and_o jurisdiction_n magnetical_a needle_n and_o long_a form_n of_o iron_n as_o knife_n dagger_n wire_n and_o such_o like_a if_o at_o one_o time_n they_o be_v touch_v and_o excite_v with_o the_o north-pole_n and_o make_v of_o his_o nature_n in_o all_o operation_n magnetical_a than_o another_o time_n let_v these_o north_n point_v be_v touch_v as_o be_v use_v to_o be_v do_v with_o the_o south-pole_n of_o the_o loadstone_n this_o end_n now_o have_v lose_v his_o former_a nature_n and_o be_v make_v of_o affinity_n and_o allegiance_n unto_o the_o south-pole_n and_o after_o if_o you_o shall_v bestow_v upon_o he_o by_o touch_v he_o again_o at_o the_o other_o pole_n the_o virtue_n of_o the_o north-pole_n again_o and_o then_o he_o will_v march_v under_o his_o banner_n and_o look_v by_o which_o pole_n he_o be_v last_o touch_v and_o relieve_v he_o will_v remain_v at_o his_o service_n always_o after_o and_o bear_v his_o badge_n put_v clay_n of_o a_o long_a form_n in_o the_o fire_n after_o let_v he_o cool_v north_n and_o south_n and_o it_o will_v receive_v a_o polar_n virtue_n after_o burn_v it_o again_o in_o the_o fire_n and_o let_v that_o end_n which_o cool_v first_o north_n now_o cool_a south_n and_o it_o will_v be_v commutate_v into_o the_o nature_n of_o the_o south_n and_o the_o other_o north._n furthermore_o if_o a_o strong_a loadstone_n be_v hold_v somewhat_o near_o such_o compass_n and_o needle_n as_o have_v be_v excite_v and_o touch_v with_o the_o virtue_n directory_n from_o the_o north_n by_o the_o magnet_n although_o they_o be_v in_o their_o box_n yet_o the_o other_o end_n of_o the_o loadstone_n will_v alter_v their_o situation_n and_o the_o lily_n of_o the_o compass_n will_v be_v clean_o turn_v that_o that_o part_n and_o lily_n that_o shall_v always_o turn_v north_n will_v either_o stand_v south_n or_o else_o move_v up_o and_o down_o unperfect_o and_o weak_o have_v his_o first_o polar_n virtue_n change_v for_o another_o or_o else_o take_v away_o this_o conclusion_n make_v many_o afraid_a to_o let_v two_o magnet_n come_v too_o near_o together_o lest_o the_o one_o shall_v rob_v the_o other_o but_o this_o will_v not_o be_v effect_v present_o in_o the_o lodestone_n themselves_o though_o that_o it_o be_v prove_v soon_o to_o come_v to_o pass_v in_o the_o magnetical_a body_n of_o steel_n and_o iron_n if_o a_o directory-needle_n be_v excite_v at_o both_o end_n from_o one_o pole_n it_o will_v have_v the_o virtue_n of_o that_o pole_n at_o both_o end_n but_o if_o both_o end_n be_v rub_v back_o from_o the_o point_n to_o the_o midst_n on_o the_o same_o pole_n both_o end_n will_v have_v the_o nature_n of_o the_o contrary_a pole_n and_o if_o one_o end_n be_v pass_v from_o the_o point_n to_o the_o midst_n that_o end_n will_v have_v the_o nature_n of_o the_o contrary_a pole_n and_o the_o other_o end_n will_v keep_v his_o nature_n still_o chap._n xxi_o of_o the_o discord_n of_o the_o two_o point_n of_o the_o adamant_n this_o proposition_n be_v demonstrate_v by_o two_o magnet_n swim_v in_o their_o boat_n in_o a_o basin_n of_o water_n as_o tab._n xi_o fig._n 5._o 6._o for_o if_o by_o force_n their_o two_o north-pole_n or_o southpole_n be_v place_v together_o they_o will_v abhor_v the_o one_o the_o other_o and_o part_v asunder_o by_o speedy_a flight_n tab_n xi_o when_o two_o adamant_n shall_v comfort_n and_o keep_v together_o at_o their_o contrary_a pole_n at_o the_o approach_n of_o a_o three_o magnet_n they_o will_v be_v separate_v and_o fly_v asunder_o tab._n xi_o fig._n 1._o because_o that_o the_o pole_n of_o their_o adamant_n that_o be_v offer_v unto_o they_o be_v of_o the_o nature_n of_o the_o pole_n of_o one_o of_o the_o two_o lodestone_n which_o the_o stone_n of_o that_o denomination_n perceive_v fly_v away_o from_o the_o company_n of_o the_o other_o because_o two_o southpole_n and_o two_o north-pole_n in_o diverse_a magnet_n be_v at_o discord_n and_o war_n together_o and_o can_v abide_v to_o dwell_v as_o neighbour_n together_o but_o each_o of_o they_o place_v out_o of_o the_o other_o orb_n will_v both_o aspect_n the_o north_n with_o their_o north-pole_n and_o the_o south_n with_o their_o southpole_n and_o thus_o two_o needle_n excite_v as_o tab._n xi_o fig._n 2._o will_n each_o of_o they_o out_o of_o the_o other_o orb_n have_v respect_n to_o their_o proper_a pole_n but_o if_o the_o needle_n be_v within_o the_o orb_n one_o of_o the_o other_o as_o tab._n xi_o fig._n 7._o then_o they_o will_v move_v and_o adhere_v together_o at_o their_o contrary_a pole_n
without_o many_o turn_n to_o and_o fro_o so_o that_o near_o the_o pole_n the_o direction_n be_v very_o strong_a neither_o by_o level_v hinder_v always_o and_o in_o all_o place_n the_o lily_n of_o the_o compass_n or_o cross_v of_o the_o directory-needle_n stand_v and_o be_v seat_v into_o the_o north_n both_o in_o this_o north_n side_n and_o on_o the_o other_o south_n side_n of_o the_o equinoctial_a line_n or_o circle_n of_o the_o earth_n tab._n iii_o fig._n 9_o tab._n xii_o fig._n 13._o contrary_a to_o the_o syte_n of_o the_o needle_n near_o the_o terrella_n or_o semiterrella_n because_o they_o be_v touch_v and_o excite_v at_o that_o point_n of_o the_o load_n stone_n that_o in_o his_o boat_n rest_v south_n and_o be_v set_v at_o liberty_n from_o the_o loadstone_n by_o the_o earth_n be_v turn_v north_n as_o the_o point_n touch_v at_o the_o north-pole_n of_o the_o adamant_n be_v turn_v south_n neither_o need_v there_o here_o any_o conversion_n of_o the_o compass_n in_o sail_v and_o go_v from_o one_o province_n of_o the_o aequator_fw-la to_o the_o other_o as_o the_o needle_n idoth_a towards_o the_o magnet_n be_v masculine_a and_o the_o needle_n of_o iron_n or_o steel_n feminine_a but_o the_o needle_n to_o the_o earth_n be_v perfect_a magnetical_a body_n and_o do_v keep_v their_o correspondency_n with_o the_o earth_n as_o if_o they_o be_v magnet_n stone_n or_o diameter_n of_o little_a earth_n therefore_o the_o needle_n and_o compass_n pass_v from_o one_o side_n of_o the_o aequator_fw-la to_o the_o other_o in_o a_o meridian_n and_o great_a circle_n proceed_v on_o still_o in_o a_o right_a line_n uniform_o only_o the_o point_n of_o the_o needle_n and_o compass_n do_v take_v their_o turn_n to_o be_v predominant_a in_o their_o direction_n in_o their_o own_o province_n especial_o if_o their_o level_n will_v suffer_v the_o virtue_n inclinatory_n to_o prevail_v which_o thing_n be_v most_o apparent_a by_o the_o inclinatory-needle_n in_o his_o ring_n that_o be_v on_o this_o side_n of_o the_o aequator_fw-la erect_v his_o lily_n above_o the_o horizon_n towards_o the_o pole_n but_o on_o the_o further_a south_n side_n of_o the_o aequator_fw-la dip_v his_o lily_n under_o the_o horizon_n and_o suffer_v the_o point_n to_o respect_v his_o own_o pole_n with_o convenient_a angle_n to_o the_o axis_fw-la but_o this_o thing_n can_v be_v do_v by_o the_o compass_n and_o directory-needle_n which_o lie_v always_o parallel_v to_o the_o horizon_n but_o only_o be_v demonstrable_a by_o the_o stone_n in_o the_o 4_o and_o 5_o table_n before_o this_o be_v a_o fit_a place_n to_o speak_v of_o the_o order_n of_o make_v sea-compass_n the_o instrument_n for_o magnetical_a direction_n the_o make_v whereof_o be_v very_o well_o know_v unto_o artificer_n yet_o i_o can_v wish_v that_o they_o be_v more_o artificial_o make_v than_o they_o be_v though_o the_o price_n be_v somewhat_o more_o with_o some_o addition_n which_o we_o do_v partly_o touch_v in_o the_o chapter_n follow_v and_o wish_v also_o that_o the_o point_n be_v 48._o in_o use_n that_o every_o point_n may_v be_v half_a a_o hour_n all_o direction_n be_v perform_v upon_o the_o true_a meridian_n respect_v direct_o with_o the_o needle_n the_o pole_n of_o the_o earth_n as_o the_o needle_n do_v in_o the_o good_a and_o polished_a loadstone_n and_o terrella_n unless_o it_o be_v weaken_v deprave_a and_o force_v to_o decline_v from_o the_o true_a meridian_n of_o the_o earth_n by_o the_o cause_n of_o variation_n chap._n xxvi_o of_o the_o variation_n of_o the_o compass_n from_o the_o true_a meridian_n tab_n xiii_o but_o because_o the_o globe_n of_o the_o earth_n be_v know_v unto_o we_o to_o be_v very_o un-even_a and_o un-equal_o mix_v with_o many_o material_n differ_v from_o magnetical_a substance_n have_v great_a and_o stony_a mountain_n large_a valley_n deep_a sea_n long_a and_o high_a continent_n and_o foreland_n some_o with_o mighty_a scatter_a rock_n of_o loadstone_n of_o iron-mine_n and_o other_o magnetical_a matter_n and_o some_o without_o as_o also_o the_o entrails_n and_o interior_a substance_n bark_n or_o scarf_n of_o the_o earth_n consist_v of_o a_o great_a quantity_n of_o substance_n not_o magnetical_a whereupon_o it_o come_v to_o pass_v that_o when_o the_o magnetical_a faculty_n of_o the_o earth_n shall_v direct_v these_o magnetical_a instrument_n of_o the_o needle_n and_o compass_n they_o be_v not_o compose_v or_o set_v direct_o upon_o the_o true_a meridian_n that_o pass_v right_o on_o to_o the_o pole_n of_o the_o earth_n but_o be_v draw_v and_o force_v awry_o towards_o some_o vigorous_a and_o magnetical_a eminency_n of_o the_o earth_n whereby_o the_o meridian_n which_o the_o needle_n and_o compass_n make_v do_v decline_v and_o vary_v from_o the_o true_a meridian_n of_o the_o earth_n certain_a part_n &_o degree_n in_o the_o horizontal_n circle_n which_o be_v call_v the_o variation_n of_o the_o compass_n the_o meridian_n that_o this_o declination_n of_o the_o compass_n &_o needle_n make_v may_v be_v term_v the_o magnetical_a meridian_n to_o distinguish_v it_o from_o the_o true_a meridian_n and_o the_o space_n between_o the_o magnetical_a meridian_n and_o the_o true_a meridian_n be_v the_o difference_n of_o variation_n so_o that_o here_o the_o needle_n &_o compass_n do_v dispose_v themselves_o into_o the_o north_n and_o south_n oblique_o and_o not_o true_o and_o exact_o and_o according_a to_o the_o diversity_n and_o strength_n of_o the_o scatter_a magnetical_a body_n be_v the_o cause_n of_o variation_n the_o arch_n of_o the_o declination_n be_v great_a and_o lesser_a as_o in_o sail_v by_o great_a continent_n and_o highland_n magnetical_a either_o the_o point_n or_o tail_n of_o the_o needle_n and_o compass_n be_v force_v awry_o towards_o the_o east_n or_o west_n as_o be_v demonstrate_v in_o the_o chapter_n of_o application_n &_o in_o the_o xxiii_o chapter_n for_o if_o the_o magnetical_a eminency_n whether_o it_o be_v iron_n like_o clay_n i_o of_o iron_n or_o rockeof_o loadstone_n be_v contiguous_a unto_o the_o magnetical_a globe_n of_o the_o earth_n and_o fasten_v in_o the_o same_o substance_n unto_o it_o than_o the_o compass_n and_o needle_n will_v leave_v the_o direction_n of_o the_o magnetical_a globe_n of_o the_o earth_n and_o deflect_v towards_o this_o eminency_n but_o if_o this_o mountain_n magnetical_a be_v not_o continue_v with_o the_o globe_n and_o have_v other_o material_n under_o and_o about_o he_o than_o the_o needle_n and_o compass_n will_v be_v thrust_v awry_o and_o fly_v from_o it_o decline_v as_o much_o in_o a_o manner_n the_o other_o way_n lean_v unto_o it_o by_o the_o other_o point_n or_o tail_n as_o it_o be_v demonstrate_v in_o the_o rule_n of_o application_n of_o one_o needle_n in_o his_o varry_n upon_o the_o loadstone_n unto_o a_o piece_n of_o iron_n touch_v and_o not_o touch_v the_o stone_n and_o no_o less_o do_v the_o needle_n and_o compass_n upon_o the_o continent_n and_o inner-land_n decline_v easterly_n or_o westerly_n when_o as_o a_o great_a part_n of_o the_o earth_n shall_v be_v of_o a_o substance_n no_o way_n magnetical_a and_o the_o other_o part_n shall_v be_v of_o a_o vigorous_a and_o adamantine_a quality_n to_o attract_v unto_o it_o for_o although_o all_o direction_n to_o the_o north_n and_o south_n by_o the_o needle_n and_o compass_n be_v from_o the_o virtue_n of_o the_o whole_a magnetical_a globe_n of_o the_o earth_n yet_o a_o strong_a effectual_a and_o near_o particular_a cause_n though_o weak_a as_o it_o be_v prove_v in_o the_o end_n of_o the_o xxiii_o chapter_n vari_v their_o direction_n diverse_o and_o erratical_o by_o that_o land_n especial_o which_o lie_v and_o treat_v north_n and_o south_n where_o as_o the_o vigour_n and_o potency_n magnetical_a increase_v from_o the_o equinoctial_a to_o the_o pole_n of_o the_o magnetical_a globe_n of_o the_o earth_n as_o it_o do_v in_o the_o terrella_n whereby_o the_o like_a eminency_n magnetical_a in_o the_o part_n near_o the_o pole_n be_v of_o more_o allicient_fw-la and_o adamantine_a property_n than_o they_o be_v about_o the_o equinoctial_a therefore_o it_o may_v be_v think_v that_o in_o sail_v upon_o one_o meridian_n in_o like_a distance_n from_o this_o eminency_n enrich_v with_o this_o vigour_n it_o will_v make_v a_o great_a variation_n of_o the_o compass_n near_o the_o pole_n than_o it_o do_v near_o the_o equinoctial_a but_o this_o matter_n may_v be_v help_v and_o lessen_v by_o the_o great_a vigour_n that_o the_o needle_n be_v direct_v withal_o from_o the_o adamantine_a globe_n of_o the_o earth_n especial_o if_o the_o sea_n be_v shallow_a and_o the_o needle_n in_o a_o near_a orb_n unto_o the_o same_o for_o thus_o the_o needle_n will_v very_o hardly_o be_v remove_v because_o the_o force_n of_o the_o earth_n be_v great_a that_o direct_v it_o but_o mark_v that_o in_o the_o xxiii_o chapter_n where_o a_o small_a strength_n magnetical_a alter_v quick_o the_o
that_o can_v easy_o be_v perceive_v upon_o a_o loadstone_n of_o good_a strength_n and_o vigour_n especial_o upon_o his_o pole_n and_o he_o will_v show_v a_o vigour_n as_o if_o he_o be_v as_o strong_a as_o the_o loadstone_n be_v whereunto_o he_o be_v unite_v but_o after_o that_o he_o be_v take_v away_o he_o will_v be_v as_o weak_a as_o before_o unless_o it_o be_v often_o do_v chap._n xvii_o of_o contribute_v the_o virtue_n magnetical_a to_o iron_n or_o steel_n the_o iron_n bar_v in_o window_n be_v there_o place_v north_n and_o south_n do_v receive_v a_o polar_n virtue_n and_o directory_n faculty_n in_o time_n from_o the_o vigour_n of_o the_o orb_n of_o the_o magnetical_a globe_n of_o the_o earth_n and_o have_v mark_v they_o with_o note_n to_o know_v which_o end_n be_v south_n &_o which_o north_n in_o the_o window_n take_v they_o out_o and_o tie_v a_o three_o about_o the_o midst_n of_o they_o that_o they_o may_v hang_v level_o in_o the_o air_n and_o the_o end_n with_o the_o south_n note_n will_v turn_v itself_o into_o the_o north_n and_o the_o other_o note_n will_v behold_v the_o south_n contrary_a to_o their_o place_n in_o the_o window_n where_o they_o be_v first_o animate_v magnetical_o likewise_o if_o a_o long_a piece_n of_o iron_n be_v forge_v north_n and_o south_n and_o lay_v by_o to_o cool_v in_o the_o same_o situation_n he_o will_v be_v animate_v and_o endue_v with_o a_o polar_n virtue_n and_o move_v in_o the_o air_n be_v hang_v in_o a_o three_o or_o put_v in_o a_o boat_n on_o the_o water_n and_o turn_v to_o the_o contrary_a pole_n to_o that_o from_o which_o he_o first_o receive_v the_o magnetical_a vigour_n if_o a_o rod_n of_o iron_n a_o wire_n or_o directory-needle_n be_v overheat_n in_o the_o fire_n so_o that_o they_o have_v lose_v all_o magnetical_a vigour_n to_o direct_v they_o north_n or_o south_n yet_o let_v they_o be_v touch_v with_o the_o loadstone_n at_o one_o end_n only_o and_o they_o will_v be_v excite_v with_o a_o directory_n and_o polar_n vigour_n at_o both_o end_n and_o the_o one_o end_n of_o the_o semidiamiter_n will_v be_v of_o the_o north_n and_o the_o other_o of_o the_o south_n province_n and_o nature_n and_o be_v place_v according_a to_o magnetical_a order_n will_v direct_v their_o point_n to_o the_o north_n &_o south_n contrary_a to_o the_o pole_n that_o animate_v they_o with_o this_o virtue_n polar_n also_o take_v rod_n of_o iron_n wire_n and_o magnetical_a needle_n that_o have_v never_o be_v touch_v with_o the_o loadstone_n and_o rub_v they_o upon_o the_o pole_n caps_z or_o tooth_n of_o the_o loadstone_n at_o the_o end_n and_o they_o will_v be_v much_o refresh_v vigorate_v and_o animate_v with_o the_o polar_n and_o directory_a virtue_n at_o both_o end_n both_o of_o the_o north_n and_o southpole_n as_o though_o they_o have_v a_o new_a life_n of_o quickness_n infuse_v into_o they_o and_o these_o shall_v refresh_v other_o needle_n that_o shall_v be_v touch_v with_o they_o and_o apprehend_v and_o draw_v they_o away_o like_o captive_n and_o will_v not_o let_v they_o loose_v from_o they_o unless_o by_o force_n you_o sever_v they_o the_o best_a way_n to_o touch_v incite_v and_o give_v the_o polar_n directory_n and_o magnetical_a vigour_n and_o faculty_n unto_o needle_n &_o mariner_n compass_n be_v to_o rub_v they_o from_o the_o midst_n of_o the_o needle_n where_o the_o aequator_fw-la of_o their_o axis_fw-la be_v unto_o their_o point_n upon_o the_o pole_n cap_n or_o tooth_n of_o the_o loadstone_n draw_v they_o thus_o from_o their_o middle_n to_o the_o end_n upon_o the_o cap_n pole_n or_o parallel_v near_o the_o same_o unto_o the_o axis_fw-la or_o at_o right_a angle_n to_o it_o they_o after_o draw_v the_o other_o end_n upon_o the_o other_o pole_n cap_n or_o tooth_n diverse_a time_n as_o afore_o and_o these_o needle_n wire_n and_o plate_n for_o compass_n shall_v be_v perfect_o touch_v and_o vigorate_v in_o long_a lodestone_n that_o have_v the_o pole_n in_o the_o end_n if_o a_o wire_n be_v draw_v parallel_n to_o the_o axis_fw-la from_o the_o pole_n end_v to_o the_o aequator_fw-la it_o will_v be_v incite_v with_o that_o pole_n it_o be_v doubt_v whether_o the_o touch_n and_o polar_n virtue_n will_v be_v give_v as_o well_o from_o a_o parallel_n some_o distance_n from_o the_o pole_n as_o from_o the_o pole_n itself_o it_o be_v plain_a that_o from_o those_o parallel_n and_o part_n near_o adjoin_v to_o the_o pole_n the_o great_a vigour_n of_o polity_n magnetical_a do_v proceed_v yet_o in_o parallel_n near_a the_o aequator_fw-la it_o will_v be_v give_v likewise_o &_o the_o virtue_n directory_n will_v be_v very_o sufficient_a if_o you_o touch_v the_o needle_n among_o the_o parallel_n it_o be_v the_o best_a way_n to_o rub_v the_o needle_n alongst_o the_o meridians_fw-la towards_o the_o pole_n rather_o than_o to_o rub_v the_o cross_a the_o meridians_fw-la in_o a_o parallel_n manner_n yet_o this_o way_n will_v give_v the_o polar_n and_o magnetical_a virtue_n also_o some_o have_v think_v it_o better_a to_o touch_v compass_n and_o magnetical_a needle_n rather_o on_o the_o loadstone_n then_o upon_o their_o cap_n think_v that_o the_o vigour_n and_o faculty_n magnetical_a will_v continue_v long_a that_o be_v give_v from_o the_o bare_a magnet_n stone_n the_o truth_n be_v to_o be_v observe_v in_o time_n yet_o the_o cap_n and_o tooth_n give_v and_o impart_v a_o strong_a vigour_n to_o the_o needle_n than_o the_o bare_a stone_n do_v because_o the_o virtue_n of_o the_o loadstone_n be_v increase_v as_o much_o by_o the_o armour_n and_o cap_n as_o if_o his_o bulk_n simple_o be_v tripled_a needle_n and_o wire_n of_o steel_n heat_v to_o a_o height_n and_o reduce_v back_o to_o a_o bluish_a colour_n will_v receive_v a_o strong_a touch_n and_o retain_v it_o ten_o time_n long_o than_o iron_n will_v howsoever_o he_o be_v harden_v yet_o iron_n be_v best_a for_o cap_n place_v near_o the_o stone_n that_o end_n of_o the_o needle_n whether_o directory_n or_o inclinatory_n which_o be_v to_o be_v touch_v aught_o to_o be_v somewhat_o light_a than_o the_o other_o especial_o for_o the_o north_n and_o most_o vigorous_a touch_n end_n of_o the_o stone_n because_o that_o the_o touch_v will_v sway_v down_o a_o little_a and_o the_o needle_n have_v two_o motion_n one_o of_o direction_n the_o other_o of_o inclination_n and_o then_o the_o needle_n and_o compass_n will_v play_v more_o level_a and_o aequidistant_a to_o the_o horizon_n for_o the_o say_a use_n when_o any_o magnetical_a needle_n or_o wire_n be_v touch_v from_o the_o north-pole_n or_o tooth_n of_o the_o adamant_n that_o end_n of_o the_o needle_n will_v respect_v the_o north-pole_n of_o the_o magnet_n but_o be_v sever_v out_o of_o the_o orb_n of_o the_o adamant_n it_o will_v be_v direct_v into_o the_o south_n by_o the_o magnetical_a virtue_n of_o the_o earth_n but_o if_o a_o round_a globe_n or_o ring_n of_o iron_n be_v touch_v with_o the_o north-pole_n of_o the_o stone_n the_o place_n touch_v will_v have_v the_o virtue_n of_o the_o south-pole_n &_o the_o north-pole_n will_v be_v in_o the_o opposite_a part_n and_o be_v sever_v from_o the_o magnet_n it_o will_v not_o turn_v to_o the_o contrary_a part_n as_o it_o fall_v out_o in_o long_o magnetical_a needle_n &_o compass_n as_o before_o if_o a_o ring_n of_o iron_n be_v touch_v the_o correspondent_a pole_n will_v be_v in_o the_o opposite_a part_n but_o if_o this_o ring_n be_v cut_v asunder_o and_o make_v a_o straight_a wire_n than_o both_o end_n will_v have_v the_o vigour_n of_o one_o pole_n only_o excite_v a_o directory_n needle_n at_o both_o end_n from_o one_o pole_n and_o they_o will_v both_o be_v of_o one_o nature_n and_o look_v what_o point_n be_v last_o touch_v and_o that_o will_v turn_v as_o if_o he_o only_o be_v touch_v and_o direct_v more_o sure_o with_o less_o waver_v too_o and_o fro_o than_o the_o other_o touching_n will_n speak_v of_o before_o let_v a_o long_a piece_n of_o clay_n new_o burn_v cool_a north_n and_o south_n and_o it_o will_v receive_v power_n magnetical_a from_o the_o earth_n set_a two_o lodestone_n with_o their_o pole_n of_o one_o denomination_n at_o the_o end_n of_o a_o piece_n of_o clay_n while_o it_o cool_v and_o both_o end_n will_v be_v of_o one_o nature_n if_o a_o long_a wire_n be_v touch_v in_o the_o midst_n by_o the_o loadstone_n and_o pass_v through_o a_o cork_n and_o set_v for_o to_o swim_v in_o the_o water_n it_o will_v waver_v up_o and_o down_o uncertaine_o as_o though_o it_o be_v not_o touch_v but_o if_o it_o chance_v to_o rest_v itself_o towards_o the_o pole_n in_o time_n it_o will_v be_v endue_v with_o his_o virtue_n set_a a_o piece_n of_o iron_n upon_o a_o loadstone_n as_o you_o do_v a_o weak_a magnet_n in_o the_o end_n of_o the_o former_a chapter_n and_o
in_o chariot-wheel_n for_o circumvolution_n turn_v herself_o daily_o about_o from_o the_o west_n into_o the_o east_n to_o meet_v with_o and_o receive_v the_o pleasant_a beam_n and_o influence_n of_o the_o sun_n star_n and_o planet_n for_o to_o cherish_v comfort_n and_o invigor_n all_o those_o goodly_a creature_n that_o be_v place_v upon_o she_o grow_v out_o of_o she_o or_o be_v breed_v and_o conceive_v in_o she_o as_o also_o for_o the_o continual_a change_n and_o vicissitude_n of_o season_n be_v a_o thing_n more_o natural_a and_o fit_a that_o the_o earth_n shall_v thus_o move_v for_o she_o own_o good_a then_o that_o all_o the_o heaven_n shall_v furious_o move_v to_o serve_v she_o it_o be_v to_o be_v observe_v in_o fashion_v of_o the_o magnet_n stone_n that_o when_o the_o axis_fw-la of_o the_o same_o shall_v be_v cut_v short_a that_o then_o the_o aequator_fw-la remove_v necessary_o to_o the_o midst_n of_o the_o body_n of_o the_o loadstone_n as_o if_o a_o long_a magnet_n shall_v be_v saw_v and_o divide_v into_o two_o piece_n as_o tab_n iii_o fig._n 8._o upon_o or_o parallel_v to_o the_o aequator_fw-la the_o pole_n will_v be_v in_o the_o midst_n of_o the_o stone_n and_o the_o aequator_fw-la will_v also_o be_v in_o the_o midst_n of_o either_o stone_n as_o a_o b_o and_o the_o prick_v line_n be_v for_o every_o piece_n and_o part_n of_o a_o loadstone_n have_v his_o pole_n and_o aequator_fw-la with_o the_o rest_n of_o the_o circle_n as_o well_o and_o as_o natural_o as_o the_o earth_n or_o any_o great_a magnet_n have_v and_o will_v be_v divide_v into_o two_o jurisdiction_n by_o his_o aequator_fw-la tho_o before_o all_o his_o part_n be_v but_o of_o one_o province_n and_o nature_n even_o so_o if_o you_o part_v a_o needle_n or_o long_o wire_n magnetical_o touch_v in_o two_o piece_n the_o part_n will_v have_v their_o several_a pole_n as_o tab._n iii_o fig._n 5._o the_o pole_n a_o b_o be_v in_o either_o part_n of_o the_o wire_n chap._n ix_o of_o the_o meridian_n the_o meridian_n be_n great_a circle_n draw_v by_o the_o aequator_fw-la upon_o the_o loadstone_n or_o as_o may_v be_v observe_v by_o the_o needle_n upon_o the_o face_n of_o the_o earth_n from_o the_o one_o pole_n to_o the_o other_o where_o they_o do_v all_o touch_n as_o in_o the_o centre_n tab._n iii_o fig._n 9_o they_o be_v natural_o in_o every_o loadstone_n and_o in_o the_o earth_n and_o be_v thus_o find_v out_o for_o they_o be_v the_o path_n whereon_o all_o magnetical_a motion_n be_v traverse_a and_o direct_v lay_v a_o wire_n of_o a_o reasonable_a length_n upon_o the_o magnet_n as_o fig._n 9_o a_o b_o and_o it_o will_v turn_v and_o seat_n itself_o upon_o a_o meridian_n and_o point_n to_o the_o pole_n and_o if_o he_o be_v move_v from_o the_o meridian_n by_o any_o force_n he_o will_v soon_o return_v to_o the_o same_o again_o and_o by_o this_o wire_n you_o may_v mark_v out_o a_o meridian_n likewise_o take_v a_o little_a directory-needle_n of_o a_o small_a dial_n and_o set_v it_o upon_o a_o small_a pin_n with_o a_o foot_n set_v they_o upon_o the_o terrella_n semiterrella_n or_o any_o magnet_n tab._n iii_o fig._n 9_o and_o the_o needle_n will_v point_v towards_o the_o pole_n make_v a_o mark_n remove_v the_o needle_n forward_o and_o make_v more_o then_o join_v all_o the_o point_n together_o which_o make_v a_o part_n of_o a_o meridian_n and_o be_v continue_v forward_o run_v to_o the_o pole_n so_o a_o small_a and_o short_a wire_n place_v upon_o the_o magnet_n from_o place_n to_o place_n between_o the_o aequator_fw-la and_o the_o pole_n will_v stick_v fast_o at_o one_o end_n and_o erect_v the_o other_o oblique_o and_o the_o several_a place_n be_v note_v with_o chalk_n or_o emery_n will_v set_v out_o a_o meridian_n to_o the_o pole_n at_o the_o aequator_fw-la be_v no_o long_o than_o a_o barley_n corn_n will_v lie_v flat_a to_o the_o stone_n put_v he_o forward_o towards_o the_o pole_n and_o then_o he_o will_v erect_v himself_o a_o little_a stick_v at_o the_o other_o end_n upon_o your_o terrella_n semiterrella_n or_o magnet_n put_v he_o more_o forward_o and_o he_o will_v be_v erect_v less_o acute_o and_o about_o 34_o degree_n from_o the_o aequator_fw-la he_o will_v make_v a_o right_a angle_n with_o the_o axis_fw-la of_o the_o magnet_n and_o be_v bring_v and_o place_v upon_o the_o pole_n stand_v upright_o in_o one_o continue_a axis_fw-la with_o the_o axis_fw-la of_o the_o loadstone_n tab._n iii_o fig._n 9_o this_o variety_n of_o application_n to_o the_o magnet_n do_v produce_v a_o certain_a kind_n of_o motion_n magnetical_a which_o may_v be_v call_v the_o motion_n of_o inclination_n conversion_n or_o conformity_n of_o one_o magnetical_a body_n unto_o another_o but_o the_o little_a directory-needle_n demonstrate_v this_o motion_n best_o be_v carry_v about_o the_o terrella_n and_o semiterrella_n as_o shall_v be_v demonstrate_v in_o the_o xii_o chapter_n follow_v i_o have_v speak_v before_o somewhat_o as_o concern_v the_o make_v flat_a of_o a_o side_n of_o the_o loadstone_n parallel_n to_o the_o axis_fw-la which_o be_v a_o meridian_n line_n parallel_n thereto_o whereby_o weight_n may_v be_v apprehend_v tab._n iii_o fig._n 4._o therefore_o have_v a_o magnet_n stone_n first_o make_v flat_a at_o the_o end_n where_o the_o pole_n be_v and_o after_o a_o side_n make_v plain_a and_o straight_o parallel_n to_o the_o axis_fw-la for_o a_o meridian_n than_o you_o may_v form_v the_o stone_n into_o what_o fashion_n you_o please_v as_o into_o a_o fouresquare_a into_o a_o figure_n of_o 5_o 6_o or_o 8_o equal_a angle_n or_o side_n or_o into_o unequal_a side_n as_o have_v be_v thew_v in_o the_o first_o table_n in_o many_o type_n cut_a a_o part_n from_o a_o magnet_n stone_n meridional_o and_o that_o end_n which_o be_v place_v south_n when_o it_o be_v whole_a be_v sever_v will_v turn_v north_n though_o natural_o at_o first_o it_o be_v the_o south_n point_n as_o in_o tab._n iii_o fig._n 3._o the_o pole_n a_o b_o in_o the_o little_a piece_n be_v turn_v contrary_a to_o the_o pole_n a_o b_o in_o the_o great_a magnet_n chap._n x._o of_o the_o parallel_n the_o parallel_n be_v circle_n and_o part_n equidistant_a from_o the_o pole_n and_o parallel_v to_o the_o aequator_fw-la and_o do_v possess_v the_o whole_a space_n between_o the_o aequator_fw-la and_o the_o pole_n as_o tab._n iii_o fig._n 10._o these_o circle_n be_v prick_v out_o as_o the_o aequator_fw-la be_v and_o be_v find_v by_o the_o inclinatory-needle_n be_v carry_v at_o one_o angle_n about_o the_o terrella_n and_o in_o all_o these_o place_n the_o small_a wire_n tab._n iii_o fig._n 9_o and_o directory-needle_n tab._n iii_o fig._n 10_o do_v apply_v their_o axis_fw-la or_o line_n of_o length_n oblique_o to_o the_o axis_fw-la of_o the_o body_n of_o the_o magnet_n a_fw-fr b_o or_o of_o the_o earth_n for_o to_o find_v out_o these_o oblique_a angle_n in_o every_o parallel_n and_o what_o correspondency_n they_o have_v unto_o they_o there_o be_v diverse_a operation_n diagram_n instrument_n and_o calculation_n find_v out_o to_o demonstrate_v and_o to_o know_v what_o angle_n of_o inclination_n will_v answer_v to_o every_o parallel_n for_o in_o every_o parallel_n of_o the_o earth_n the_o inclinatory-needle_n make_v a_o diverse_a angle_n of_o inclination_n to_o the_o axis_fw-la but_o one_o angle_n and_o of_o one_o sort_n in_o one_o and_o the_o same_o elevation_n of_o the_o pole_n or_o parallel_n and_o by_o this_o mean_n of_o the_o inclinatory-needle_n in_o a_o ring_n the_o latitude_n of_o the_o pole_n be_v know_v on_o both_o side_n of_o the_o equinoctial_a without_o any_o sight_n of_o the_o sun_n and_o star_n by_o the_o magnetical_a disposition_n from_o the_o earth_n if_o in_o form_v of_o the_o loadstone_n some_o parallel_n be_v cut_v away_o as_o it_o shall_v seem_v in_o the_o terrella_n by_o cut_v and_o flat_v the_o end_n where_o the_o pole_n be_v tab._n iii_o fig._n 11._o yet_o in_o truth_n they_o remain_v still_o upon_o the_o magnet_n though_o the_o meridian_n line_n be_v change_v from_o crooked_a line_n to_o straight_a line_n and_o this_o be_v to_o be_v observe_v that_o always_o the_o parallel_n near_o 34_o degree_n in_o the_o perfect_a terrella_n semiterrella_n and_o round_a meridian_n or_o straight_a meridian_n where_o the_o directory-needle_n aspect_v that_o edge_n or_o angle_n at_o right_a angle_n unto_o the_o axis_fw-la tab._n iii_o fig._n 11._o and_o tab._n vii_o fig._n 2._o as_o the_o most_o protuberant_a and_o middle_a place_n between_o the_o pole_n and_o the_o aequator_fw-la as_o in_o this_o loadstone_n truncate_v and_o flat_v at_o the_o pole_n in_o the_o parallel_n of_o like_a distance_n from_o the_o pole_n all_o magnetical_a body_n do_v apply_v and_o conform_v alike_o and_o have_v the_o like_a inclination_n of_o their_o axis_fw-la that_o denotate_n like_o elevation_n of_o the_o
pole_n the_o outward_a external_a semicircle_n f_o h_o g_o we_o will_v term_v the_o meridian_n inclinatory_a semicircle_n because_o the_o needle_n inclinatory_n do_v show_v in_o these_o quadrant_n certain_a part_n and_o degree_n answerable_a to_o every_o degree_n of_o the_o elevation_n of_o the_o pole_n of_o the_o terrella_n or_o semiterrella_n declare_v in_o the_o inner_a quadrant_n of_o altitude_n of_o the_o pole_n for_o practice_v hereof_o if_o it_o be_v desire_v to_o know_v where_o the_o pole_n be_v elevate_v ten_o degree_n above_o the_o horizon_n what_o degree_n the_o inclinatory-needle_n will_v point_v at_o in_o the_o inclinatory_a meridian_n semicircle_n answerable_a thereunto_o here_o turn_v about_o the_o limb_n and_o verge_n until_o ten_o degree_n of_o the_o semicircle_n of_o altitude_n be_v place_v just_a with_o the_o pole_n a_o the_o pole_n be_v elevate_v so_o many_o degree_n above_o the_o horizon_n then_o look_v in_o the_o quadrant_a of_o the_o meridian_n inclinatory_a semicircle_n and_o his_o needle_n will_v point_v to_o 20_o degree_n the_o very_a true_a part_n the_o inclinatory-needle_n be_v place_v in_o his_o ring_n and_o meridian_n circle_n hereafter_o to_o be_v describe_v will_v point_v at_o in_o travel_v where_o the_o pole_n be_v elevate_v ten_o degree_n after_o this_o manner_n seek_v out_o what_o will_v be_v correspondent_a where_o the_o latitude_n of_o the_o pole_n shall_v be_v 20_o or_o 30_o degree_n and_o this_o needle_n will_v point_v out_o the_o correspondent_a degree_n of_o the_o angle_n of_o inclination_n in_o the_o meridian-inclinatory_a semicircle_n to_o these_o or_o any_o elevation_n that_o shall_v be_v desire_v therefore_o here_o you_o see_v how_o profitable_a and_o of_o what_o great_a use_n this_o demonstration_n be_v in_o help_v to_o attain_v to_o the_o reason_n &_o true_a knowledge_n of_o the_o inclinatory-needle_n which_o place_v in_o his_o ring_n and_o carry_v about_o the_o earth_n in_o the_o meridian_n do_v only_o show_v his_o angle_n and_o inclination_n to_o the_o axis_fw-la but_o this_o demonstration_n direct_v from_o the_o stone_n itself_o what_o will_v be_v the_o number_n of_o degree_n that_o the_o angle_n of_o the_o inclination_n make_v above_o the_o horizon_n and_o what_o degree_n of_o the_o elevation_n of_o the_o pole_n will_v be_v answerable_a thereto_o and_o from_o hence_o table_n may_v be_v make_v and_o collect_v what_o degree_n of_o the_o inclinatory-needle_n will_v be_v answerable_a to_o every_o elevation_n of_o the_o pole_n chap._n xiiii_o of_o the_o distance_n and_o orb_n of_o the_o magnet_n virtue_n tab._n vi_o place_v wire_n about_o a_o inch_n in_o length_n within_o their_o length_n in_o the_o orb_n of_o a_o good_a magnet_n and_o they_o will_v skip_v unto_o the_o magnet_n as_o though_o they_o be_v quick_a and_o will_v unite_v and_o adhere_v fast_o unto_o it_o until_o they_o be_v take_v off_o the_o celerity_n of_o motion_n attraction_n and_o conformity_n within_o the_o magnetical_a orb_n be_v according_a to_o the_o goodness_n of_o the_o loadstone_n the_o greatness_n of_o his_o bulk_n conveniency_n of_o his_o figure_n and_o smoothness_n and_o in_o the_o shortness_n of_o the_o distance_n in_o the_o air_n or_o in_o water_n yet_o further_o than_o in_o these_o the_o loadstone_n extend_v his_o virtue_n by_o contaction_n and_o continuation_n in_o a_o long_a wire_n set_v unto_o his_o pole_n which_o wire_n will_v move_v a_o needle_n or_o adhere_v to_o another_o wire_n at_o the_o end_n of_o his_o length_n but_o this_o be_v do_v by_o augmentation_n of_o the_o lodestone_n vigour_n as_o shall_v be_v declare_v although_o that_o such_o substance_n which_o be_v not_o magnetical_a be_v place_v between_o the_o needle_n and_o loadstone_n yet_o they_o can_v hinder_v the_o orb_n and_o proceed_n of_o the_o magnetical_a vigour_n as_o if_o a_o loadstone_n shall_v be_v enclose_v in_o a_o box_n of_o wood_n stone_n tin_n silver_n or_o brass_n yet_o the_o loadstone_n will_v extend_v his_o magnetical_a orb_n wherein_o many_o pretty_a and_o ingenious_a magnetical_a practice_n may_v be_v wrought_v admirable_a to_o behold_v as_o have_v the_o form_n and_o protractor_n of_o creep_a thing_n beast_n footman_n horseman_n and_o fly_v draw_v in_o past-boord_n have_v but_o a_o short_a wire_n close_o convey_v into_o they_o and_o place_v upon_o a_o trencher_n paper_n or_o plate_n shall_v be_v cause_v to_o move_v stir_v pass_v on_o and_o flicker_v as_o though_o they_o be_v alive_a only_o by_o move_v the_o pole_n of_o a_o good_a magnet_n direct_o under_o they_o also_o if_o a_o magnet_n be_v fasten_v in_o the_o roof_n or_o over_o a_o door_n it_o will_v hold_v a_o iron_n weight_n in_o the_o air_n tab._n vi_o fig._n 2._o that_o have_v a_o thread_n fasten_v to_o it_o to_o hold_v it_o short_a that_o it_o be_v not_o draw_v close_o for_o to_o be_v unite_v unto_o the_o loadstone_n likewise_o if_o a_o short_a piece_n of_o iron_n or_o cap_n be_v hold_v within_o a_o inch_n of_o a_o strong_a magnet_n stone_n tab._n vi_o fi._n 3._o it_o will_v take_v up_o great_a weight_n in_o this_o orb_n though_o not_o so_o much_o as_o if_o it_o touch_v the_o stone_n and_o pole_n but_o if_o the_o cap_n be_v hold_v over_o the_o pole_n it_o will_v hold_v a_o weight_n up_o rather_o then_o the_o pole_n tab._n vi_o fig._n 6._o i_o hold_v it_o needless_a to_o demonstrate_v how_o all_o the_o needle_n of_o dial_n magnetical_a instrument_n the_o mariner_n compass_n and_o inclinatoryre_v do_v all_o of_o they_o move_v within_o the_o orb_n of_o the_o magnetical_a vigour_n of_o the_o earth_n only_o i_o will_v show_v you_o a_o pretty_a practice_n or_o two_o for_o delight_n get_v a_o wire_n of_o four_o or_o five_o inch_n in_o length_n and_o thrust_v it_o through_o a_o cork_n than_o it_o be_v touch_v with_o the_o loadstone_n place_v it_o in_o a_o basin_n of_o water_n and_o it_o will_v move_v and_o direct_v itself_o north_n and_o south_n by_o the_o vigorous_a orb_n of_o the_o earth_n tab._n vi_o fig._n 4._o and_o also_o incline_v and_o conform_v a_o convenient_a angle_n with_o the_o horizon_n and_o axis_fw-la of_o the_o earth_n this_o practice_n be_v profitable_a for_o traveller_n who_o have_v sow_a needle_n touch_v may_v prick_v they_o upon_o any_o piece_n of_o wood_n and_o place_v they_o in_o the_o water_n and_o it_o will_v set_v out_o the_o north_n and_o south_n instead_o of_o a_o compass_n but_o if_o for_o pleasure-sake_n you_o take_v another_o wire_n thrust_v through_o a_o round_a cork_n and_o let_v his_o upper_a end_n be_v touch_v at_o the_o contrary_a pole_n and_o place_v in_o the_o basin_n of_o water_n these_o two_o after_o some_o time_n will_v take_v knowledge_n of_o each_o other_o and_o will_v begin_v to_o move_v and_o stir_v and_o draw_v near_o and_o near_a together_o tab._n vi_o fig._n 5._o and_o come_v near_o will_v move_v the_o fast_o and_o sudden_o join_v together_o at_o the_o upper_a end_n on_o these_o wire_n paper-tilter_n on_o horsbacke_a may_v be_v fasten_v and_o they_o will_v run_v their_o course_n together_o upon_o cork_n in_o the_o water_n etc._n etc._n chap._n xv._o of_o application_n tab_n vii_o take_v a_o long_a magnet_n that_o have_v the_o pole_n in_o the_o midst_n tab._n vii_o fig._n 1._o as_o a_o b_o and_o the_o aequator_fw-la c_o d_o the_o needle_n place_v in_o the_o midst_n apply_v direct_o upon_o the_o axis_fw-la and_o at_o the_o end_n and_o at_o the_o other_o place_n oblique_o the_o second_o stone_n be_v a_o long_a magnet_n that_o have_v his_o pole_n a_o b_o in_o the_o end_n and_o the_o aequator_fw-la c_o d_o in_o the_o midst_n tab._n vii_o fig._n 2._o here_o the_o needle_n against_o the_o aequator_fw-la stand_v at_o right_a angle_n unto_o it_o and_o parallel_v unto_o the_o axis_fw-la but_o at_o the_o either_o end_n of_o the_o loadstone_n the_o needle_n apply_v themselves_o at_o right_a angle_n to_o the_o axis_fw-la and_o parallel_v to_o the_o aequator_fw-la and_o in_o the_o intermiddle_a space_n the_o needle_n apply_v oblique_o to_o the_o magnet_n now_o i_o will_v have_v you_o to_o provide_v two_o long_a lodestone_n that_o have_v the_o pole_n in_o the_o midst_n like_o that_o tab._n vii_o fi._n 1._o and_o before_o he_o place_n three_o magnetical_a needle_n two_o at_o the_o end_n and_o one_o against_o the_o midst_n or_o pole_n as_o in_o tab._n viii_o fig._n 1._o the_o middle_a needle_n will_v behold_v the_o pole_n and_o the_o other_o will_v apply_v oblique_o as_o before_o in_o table_n vii_o fig._n 1._o now_o bring_v near_o the_o second_o loadstone_n that_o have_v his_o pole_n in_o the_o midst_n and_o place_n b_o the_o south-pole_n towards_o the_o needle_n that_o behold_v the_o south-pole_n b_o of_o the_o first_o stone_n and_o these_o needle_n will_v between_o these_o two_o southpole_n respect_v neither_o pole_n of_o these_o two_o stone_n but_o seat_n themselves_o parallel_v to_o both_o stone_n and_o
make_v right_a angle_n with_o these_o two_o pole_n of_o one_o nature_n as_o tab._n viii_o fig._n 1._o now_o take_v away_o one_o of_o these_o stone_n and_o after_o turn_v the_o north-pole_n a_o towards_o the_o needle_n that_o behold_v the_o south-pole_n b_o of_o the_o other_o stone_n and_o they_o will_v all_o of_o they_o situate_v themselves_o equidistant-wise_a and_o at_o right_a angle_n to_o the_o aequator_n of_o both_o stone_n as_o table_n viii_o fig._n 2._o tab_n viii_o moreover_o take_v other_o two_o magnet_n that_o be_v long_o with_o the_o pole_n in_o the_o end_n like_o that_o tab._n vii_o fig._n 2._o and_o lay_v it_o before_o you_o and_o place_v three_o needle_n before_o it_o two_o at_o the_o end_n &_o one_o in_o the_o midst_n against_o the_o aequator_fw-la which_o will_v apply_v parallel_n to_o the_o axis_fw-la of_o the_o stone_n and_o those_o two_o at_o the_o end_n will_v seat_v themselves_o at_o right_a angle_n to_o the_o axis_fw-la as_o before_o then_o set_v the_o other_o long_a magnet_n that_o have_v his_o pole_n in_o the_o end_n with_o the_o north_n pole_n a_o against_o the_o north-pole_n a_o of_o the_o first_o stone_n tab._n viii_o fig._n 3._o and_o all_o the_o three_o needle_n will_v apply_v themselves_o in_o a_o straight_a line_n parallel_n to_o the_o axis_fw-la somewhat_o like_o the_o order_n of_o the_o first_o type_n yet_o contrariwise_o now_o take_v away_o this_o second_o stone_n with_o the_o pole_n in_o the_o end_n &_o turn_v it_o and_o place_v the_o south_n end_n b_o against_o the_o north_n end_v a_o as_o tab._n viii_o fig._n 4._o and_o then_o the_o 3_o needle_n will_v stand_v at_o right_a angle_n to_o the_o axis_fw-la and_o parallel_v one_o unto_o another_o and_o to_o the_o aequator_fw-la this_o be_v to_o be_v observe_v in_o these_o application_n that_o the_o near_a the_o second_o loadstone_n be_v place_v to_o the_o needle_n in_o aspect_n with_o the_o first_o magnet_n the_o better_a will_v they_o shape_v out_o these_o figure_n of_o application_n &_o in_o the_o approach_n they_o will_v vary_v by_o little_a and_o little_a from_o their_o first_o situation_n until_o the_o virtue_n of_o the_o two_o lodestone_n be_v equal_a in_o their_o orb_n it_o may_v be_v imagine_v that_o these_o application_n for_o the_o most_o part_n shall_v be_v find_v natural_o upon_o the_o earth_n in_o travel_v or_o navigate_a between_o two_o great_a land_n or_o high_a magnetical_a continent_n but_o the_o first_o &_o four_o figure_n of_o this_o eight_o table_n can_v be_v find_v natural_o in_o any_o place_n tab._n viii_o fig._n 1._o and_o fig._n 4._o there_o be_v also_o much_o variety_n of_o variation_n in_o one_o needle_n near_o two_o magnet_n or_o a_o magnet_n and_o magnetical_a body_n as_o place_v a_o needle_n on_o a_o little_a foot_n upon_o the_o terrella_n semiterrella_n or_o loadstone_n and_o it_o will_v direct_v itself_o right_o upon_o the_o meridian_n of_o the_o stone_n as_o have_v be_v prove_v before_o tab._n iii_o fig._n 9_o but_o if_o you_o hold_v a_o little_a piece_n of_o iron_n towards_o the_o point_n of_o the_o needle_n the_o point_n will_v fly_v from_o the_o iron_n and_o deflect_v from_o his_o meridian_n a_o little_a yet_o let_v this_o piece_n of_o iron_n touch_v the_o loadstone_n and_o be_v unite_v unto_o it_o and_o put_v it_o towards_o the_o needle_n a_o far_o off_o and_o the_o needle_n will_v turn_v from_o his_o meridian_n and_o decline_v and_o vary_v towards_o it_o the_o contrary_a be_v to_o be_v say_v if_o this_o iron_n be_v put_v towards_o the_o tail_n of_o the_o needle_n now_o take_v two_o long_a magnet_n that_o have_v their_o pole_n in_o the_o end_n and_o place_v a_o needle_n before_o the_o aequator_fw-la of_o one_o of_o they_o and_o it_o will_v apply_v parallel_n to_o the_o axis_fw-la then_o bring_v the_o other_o loadstone_n and_o place_v the_o end_n where_o the_o pole_n be_v against_o the_o aequator_fw-la of_o the_o first_o loadstone_n as_o ta._n viii_o fig._n 5._o and_o then_o the_o needle_n will_v vary_v his_o position_n and_o seat_n itself_o at_o right_a angle_n to_o the_o axis_fw-la of_o both_o magnet_n so_o also_o take_v two_o lodestone_n and_o let_v one_o of_o they_o have_v the_o pole_n in_o the_o midst_n and_o the_o other_o in_o the_o end_n and_o you_o shall_v behold_v much_o artificial_a variety_n of_o the_o application_n of_o one_o needle_n unto_o they_o place_v a_o needle_n before_o the_o midst_n of_o the_o loadstone_n that_o have_v his_o pole_n in_o the_o midst_n and_o it_o will_v behold_v the_o pole_n after_o lay_v down_o the_o other_o magnet_n that_o have_v his_o pole_n in_o the_o end_n and_o set_v his_o aequator_fw-la against_o the_o needle_n and_o it_o will_v vary_v his_o position_n and_o stand_v parallel_v to_o the_o aequator_fw-la of_o the_o former_a magnet_n who_o pole_n he_o behold_v before_o as_o table_n viii_o fig._n 6._o tab._n ix_o set_a a_o needle_n against_o the_o end_n of_o the_o loadstone_n that_o have_v his_o pole_n in_o the_o end_n and_o it_o will_v rest_v itself_o at_o right_a angle_n to_o the_o axis_fw-la then_o apply_v the_o second_o magnet_n to_o the_o needle_n that_o have_v his_o pole_n in_o the_o midst_n tab._n ix_o fig._n 2._o and_o the_o situation_n of_o the_o needle_n will_v be_v alter_v to_o be_v parallel_n to_o the_o axis_fw-la he_o behold_v at_o right_a angle_n at_o first_o place_v at_o the_o corner_n of_o that_o stone_n that_o have_v the_o pole_n b_o in_o the_o midst_n a_o needle_n and_o it_o will_v apply_v oblique_o then_o lay_v the_o end_n of_o the_o other_o loadstone_n that_o have_v the_o pole_n a_o in_o the_o end_n and_o the_o needle_n will_v apply_v at_o right_a angle_n to_o the_o axis_fw-la of_o both_o the_o stone_n as_o it_o be_v table_n ix_o figure_n 3._o but_o set_v a_o needle_n afore_o the_o end_n of_o the_o stone_n that_o have_v his_o pole_n b_o in_o the_o midst_n and_o set_v the_o end_n of_o the_o other_o magnet_n that_o have_v in_o the_o end_n the_o pole_n b_o of_o the_o same_o denomination_n as_o tab._n x._o fi._n 1._o and_o the_o needle_n will_v apply_v as_o be_v to_o be_v see_v in_o the_o type_n in_o a_o straight_a line_n to_o the_o last_o and_o parallel_v to_o the_o axis_fw-la of_o the_o first_o also_o apply_v the_o aequator_fw-la of_o this_o second_o stone_n that_o have_v the_o pole_n in_o the_o end_n unto_o the_o needle_n placed_z as_o afore_o unto_o the_o first_o stone_n table_n x._o figure_n 2._o and_o the_o needle_n will_v be_v parallel_n to_o both_o axis_fw-la let_v the_o needle_n stand_v against_o the_o corner_n of_o the_o first_o stone_n oblique_o and_o apply_v the_o end_n of_o the_o second_o stone_n with_o the_o pole_n in_o it_o tab._n x._o fig._n 3._o and_o the_o needle_n will_v apply_v as_o in_o the_o tab._n ix_o fig._n 3._o tab_n x_o chap._n xvi_o of_o preserve_v the_o virtue_n of_o magnet_n have_v treat_v of_o the_o part_n of_o the_o magnetical_a body_n of_o their_o motion_n and_o application_n now_o we_o will_v speak_v of_o his_o other_o natural_a virtue_n and_o property_n some_o have_v think_v it_o very_o convenient_a to_o keep_v the_o lodestone_n in_o file_n of_o steel_n and_o iron_n to_o preserve_v their_o virtue_n and_o vigour_n think_v that_o the_o magnet_n be_v feed_v or_o at_o least_o very_o much_o refresh_v with_o they_o because_o they_o will_v cleave_v so_o fast_o to_o the_o side_n near_o the_o pole_n but_o i_o do_v not_o allow_v this_o way_n so_o good_a to_o preserve_v they_o rather_o i_o like_v the_o keep_n of_o they_o in_o a_o bag_n or_o clout_n of_o woollin-cloth_n close_o from_o the_o injury_n of_o the_o heat_n and_o cold_a of_o the_o weather_n or_o in_o a_o case_n or_o box_n fit_a for_o they_o and_o it_o be_v very_o necessary_a to_o wipe_v they_o often_o from_o dust_n and_o grease_n and_o to_o have_v a_o care_n that_o they_o do_v not_o rust_v also_o it_o be_v very_o commodious_a and_o natural_a for_o they_o that_o they_o be_v lay_v up_o and_o place_v according_a to_o that_o natural_a situation_n the_o which_o they_o will_v affect_v and_o respect_n if_o they_o be_v carry_v in_o a_o place_n and_o fashion_v free_a from_o renitency_n and_o resistance_n in_o the_o air_n or_o water_n therefore_o they_o will_v be_v lay_v up_o or_o hang_v according_o as_o their_o pole_n and_o point_n do_v particular_o respect_v to_o the_o north_n and_o south_n which_o will_v comfort_v they_o exceed_o beside_o if_o the_o loadstone_n be_v sometime_o polish_v it_o will_v strengthen_v and_o relieve_v the_o body_n of_o the_o magnet_n very_o much_o if_o a_o weak_a magnet_n be_v rub_v at_o one_o of_o his_o pole_n with_o a_o strong_a loadstone_n he_o will_v be_v better_v by_o it_o in_o his_o vigour_n and_o virtue_n if_o not_o augment_v therein_o set_a a_o magnet_n of_o no_o force_n or_o strength_n
n_z where_o n_o be_v on_o the_o equinoctial_a line_n etc._n etc._n chap._n xxxiiii_o of_o the_o application_n of_o the_o inclinatory-needle_n to_o the_o axis_fw-la of_o the_o earth_n we_o have_v show_v how_o the_o compass_n and_o directory-needle_n do_v apply_v and_o order_v themselves_o in_o the_o magnetical_a meridian_n towards_o the_o pole_n and_o of_o the_o correct_v of_o his_o err_a from_o the_o true_a meridian_n and_o pole_n be_v carry_v level_a and_o parallel_v to_o the_o horizon_n and_o seat_v in_o any_o part_n of_o the_o terrestrial_a globe_n whereby_o and_o to_o the_o end_n the_o traveller_n by_o sea_n and_o land_n may_v take_v his_o course_n certain_o to_o any_o coast_n or_o part_n of_o the_o world_n now_o it_o remain_v that_o we_o treat_v of_o the_o use_n of_o another_o needle_n call_v the_o inclinatory-needle_n which_o be_v artificial_o place_v in_o his_o ring_n be_v as_o profitable_a to_o all_o navigator_n and_o traveller_n as_o that_o former_o speak_v of_o for_o by_o this_o they_o may_v know_v the_o elevation_n of_o the_o pole_n in_o all_o part_n of_o the_o world_n without_o the_o sight_n of_o the_o celestial_a globe_n and_o light_n this_o inclinatory-needle_n fit_v in_o his_o ring_n and_o place_v in_o the_o magnetical_a meridian_n do_v apply_v &_o conform_v itself_o unto_o the_o axis_fw-la of_o the_o magnetical_a globe_n of_o the_o earth_n whereas_o the_o directory-needle_n do_v apply_v unto_o the_o meridian_n and_o pole_n and_o that_o diverse_o in_o diverse_a elevation_n of_o the_o pole_n for_o sail_v upon_o the_o equinoctial_a of_o the_o earth_n this_o inclinatory-needle_n make_v a_o paralellline_a with_o the_o axis_fw-la of_o the_o earth_n be_v upon_o the_o pole_n this_o needle_n will_v make_v one_o continue_a line_n and_o axis_fw-la with_o the_o axis_fw-la of_o the_o earth_n pass_v from_o the_o equinoctial_a to_o either_o pole_n this_o inclinatory-needle_n will_v conform_v itself_o unto_o certain_a acute_a angle_n with_o the_o axis_fw-la of_o the_o earth_n which_o increase_n from_o the_o equinoctial_a in_o largeness_n and_o prove_v less_o acute_a in_o every_o parallel_n so_o that_o the_o angle_n of_o the_o earth_n axis_fw-la and_o the_o axis_fw-la of_o the_o needle_n be_v at_o the_o great_a about_o 42_o degree_n of_o the_o pole_n elevation_n and_o the_o difference_n between_o these_o two_o will_v be_v near_o 22_o degree_n and_o a_o half_a be_v here_o at_o the_o large_a after_o it_o decrease_v continual_o towards_o the_o pole_n where_o the_o needle_n will_v stand_v direct_o upon_o the_o axis_fw-la of_o the_o earth_n now_o to_o know_v and_o find_v out_o this_o angle_n what_o it_o be_v it_o be_v necessary_a to_o learn_v what_o angle_n this_o inclinatory-needle_n make_v with_o the_o horizon_n in_o every_o latitude_n of_o the_o pole_n because_o if_o the_o elevation_n of_o the_o pole_n be_v take_v out_o of_o this_o angle_n with_o the_o horizon_n which_o be_v always_o the_o large_a unless_o it_o be_v at_o the_o equinoctial_a and_o the_o pole_n and_o have_v the_o axis_fw-la of_o the_o earth_n always_o between_o he_o and_o the_o horizon_n the_o remainder_n be_v the_o angle_n of_o this_o needle_n conformity_n with_o the_o axis_fw-la of_o the_o earth_n therefore_o we_o will_v leave_v to_o speak_v of_o the_o inclinatory-needle_n most_o natural_a and_o true_a conformity_n with_o the_o axis_fw-la of_o the_o earth_n and_o hereafter_o shall_v deliver_v by_o what_o mean_v the_o angle_n between_o the_o inclinatory-needle_n and_o the_o horizon_n may_v be_v know_v to_o the_o end_n that_o the_o elevation_n of_o the_o pole_n may_v thereby_o be_v find_v out_o chap._n xxxv_o of_o the_o inclinatory_a ring_n and_o needle_n whereas_o the_o horizon_n be_v very_o easy_o find_v out_o by_o any_o massy_a substance_n which_o natural_o will_v hang_v perpendicular_a and_o plumbe_v by_o have_v a_o level_a line_n make_v at_o right_a angle_n unto_o the_o same_o therefore_o it_o shall_v be_v convenient_a to_o place_v this_o inclinatory-needle_n in_o a_o ring_n of_o brass_n or_o silver_n so_o artificial_o that_o this_o frame_n be_v carry_v about_o the_o meridian_n of_o the_o earth_n this_o needle_n may_v make_v all_o kind_n of_o acute_a angle_n with_o the_o horizon_n in_o the_o variety_n of_o his_o inclination_n unto_o he_o as_o at_o the_o equinoctial_a this_o needle_n lie_v level_a with_o the_o horizon_n so_o at_o the_o pole_n it_o stand_v at_o right_a angle_n to_o the_o horizon_n and_o direct_v itself_o in_o one_o line_n with_o the_o axis_fw-la of_o the_o earth_n and_o pass_v from_o the_o equinoctial_a it_o do_v elevate_v itself_o above_o the_o horizon_n twice_o as_o fast_o as_o the_o pole_n do_v until_o the_o pole_n have_v about_o a_o 11_o degree_n of_o latitude_n about_o the_o horizon_n but_o after_o the_o needle_n slack_v his_o pace_n by_o little_a and_o little_a until_o he_o come_v to_o the_o pole_n where_o both_o join_v together_o without_o any_o angle_n at_o all_o in_o one_o line_n direct_o also_o this_o needle_n make_v always_o one_o kind_n of_o angle_n with_o the_o horizon_n in_o one_o parallel_n and_o altitude_n of_o the_o pole_n and_o a_o diverse_a arch_n from_o the_o same_o but_o one_o certain_a in_o one_o latitude_n as_o by_o this_o instrument_n follow_v shall_v appear_v and_o every_o where_o be_v observe_v tab_n xvii_o after_o provide_v two_o narrow_a plate_n of_o brass_n or_o silver_n to_o be_v fasten_v on_o either_o side_n of_o the_o ring_n paralelly_n to_o the_o horizon_n and_o in_o the_o midst_n of_o these_o as_o it_o be_v against_o the_o centre_n of_o the_o ring_n drill_v and_o make_v two_o little_a hole_n almost_o through_o the_o side_n of_o the_o plate_n for_o the_o short_a axis_fw-la of_o the_o inclinatory-needle_n to_o play_v and_o move_v in_o up_o and_o down_o according_a unto_o this_o kind_n of_o magnetical_a and_o inclinatory_a conformity_n last_o this_o instrument_n will_v be_v cover_v with_o two_o glass_n for_o both_o side_n to_o keep_v the_o inclinatory-needle_n from_o wind_n and_o weather_n and_o a_o care_n have_v that_o the_o instrument_n hang_v true_o perpendicular_a in_o time_n of_o use_n in_o travel_v hang_v this_o instrument_n south_n and_o north_n in_o the_o magnetical_a meridian_n and_o this_o inclinatory-needle_n will_v fall_v with_o one_o end_n under_o the_o horizon_n in_o every_o elevation_n of_o the_o pole_n and_o bear_v up_o his_o other_o end_n in_o every_o parallel_n and_o altitude_n of_o the_o pole_n to_o a_o certain_a angle_n with_o the_o horizon_n which_o may_v be_v call_v the_o inclinatory_a angle_n for_o that_o place_n which_o be_v note_v in_o the_o meridian_n of_o this_o ring_n with_o the_o degree_n he_o point_v at_o be_v to_o be_v reserve_v as_o proportionable_a to_o that_o elevation_n of_o the_o pole_n where_o the_o observation_n be_v make_v this_o matter_n be_v demonstrate_v by_o the_o round_a loadstone_n in_o every_o part_n in_o the_o xiii_o chapter_n before_o which_o be_v collect_v by_o the_o say_a demonstration_n and_o practice_n be_v to_o be_v place_v in_o their_o correspondency_n in_o a_o table_n for_o the_o altitude_n of_o the_o pole_n whereby_o in_o all_o place_n it_o may_v be_v have_v ready_o what_o will_v be_v the_o angle_n of_o the_o inclinatory-needle_n and_o what_o be_v the_o latitude_n of_o the_o pole_n cause_v only_o by_o the_o disposition_n of_o the_o magnetical_a globe_n of_o the_o earth_n and_o also_o by_o the_o diagram_n follow_v it_o be_v show_v chap._n xxxvi_o a_o diagram_n of_o the_o needle_n inclination_n to_o the_o axis_fw-la of_o the_o earth_n and_o horizon_n in_o any_o latitude_n this_o demonstration_n show_v most_o manifest_o unto_o our_o eye_n both_o what_o angle_n the_o inclinatory-needle_n make_v to_o the_o axis_fw-la of_o the_o world_n or_o earth_n in_o all_o region_n and_o also_o what_o angle_n or_o arch_n he_o point_v at_o above_o or_o under_o from_o the_o horizon_n in_o any_o latitude_n of_o the_o pole_n whatsoever_o hereby_o most_o evident_o set_v out_o the_o meaning_n of_o the_o two_o former_a chapter_n and_o of_o the_o xiii_o chapter_n before_o they_o where_o it_o be_v demonstrate_v from_o the_o stone_n itself_o that_o this_o inclinatory-needle_n will_v make_v but_o one_o circumvolution_n about_o the_o meridian_n of_o the_o earth_n as_o it_o do_v about_o the_o loadstone_n the_o diagram_n be_v this_o tabâ—_n xviii_o in_o like_a manner_n from_o the_o other_o ten_o part_n or_o 90_o degree_n in_o the_o quadrant_a b_o d_o draw_z paralell-line_n to_o the_o 〈◊〉_d a_o d_o produce_v and_o from_o every_o part_n as_o a_o centre_n extend_v the_o compass_n from_o the_o same_o to_o c_o describe_z arch_n from_o c_o to_o those_o line_n divide_v they_o into_o 90._o part_n a_o piece_n and_o take_v like_o number_n of_o part_n answer_v to_o these_o part_n in_o the_o quadrant_a c_o d_o for_o the_o axis_fw-la of_o the_o latitude_n then_o draw_v a_o obscure_a line_n from_o a_o to_o the_o same_o part_n in_o