we_o shall_v speak_v of_o the_o rest_n in_o other_o place_n chap._n iu._n the_o force_n of_o the_o stone_n be_v send_v by_o a_o right_a line_n from_o north_n to_o south_n through_o the_o length_n of_o it_o but_o the_o two_o point_n we_o speak_v of_o be_v the_o end_n of_o the_o right_a line_n run_v through_o the_o middle_n of_o the_o stone_n from_o north_n to_o south_n if_o any_o man_n break_v the_o stone_n and_o break_v this_o line_n those_o end_n of_o the_o division_n will_v present_o be_v of_o another_o property_n and_o virtue_n and_o will_v be_v enemy_n one_o to_o the_o other_o which_o be_v a_o great_a wonder_n for_o these_o two_o point_n when_o they_o be_v join_v together_o have_v the_o same_o force_n of_o turn_v to_o the_o pole_n but_o now_o be_v part_v asunder_o one_o will_v turn_v to_o the_o north_n the_o other_o to_o the_o south_n keep_v the_o same_o posture_n and_o position_n they_o have_v in_o the_o mine_n where_o they_o be_v breed_v and_o the_o same_o happen_v in_o the_o least_o bit_n that_o be_v see_v in_o the_o great_a loadstone_n for_o example_n let_v the_o rock_n of_o loadstone_n be_v abcd_v and_o let_v the_o line_n from_o north_n to_o south_n be_v ab_fw-la if_o we_o shall_v cut_v the_o stone_n ab_fw-la out_o of_o the_o rock_n the_o very_a line_n ab_fw-la in_o the_o stone_n will_v represent_v the_o polar_n line_n from_o north_n to_o south_n but_o if_o we_o break_v the_o stone_n broad-waye_n every_o little_a piece_n will_v keep_v its_o line_n cut_a the_o stone_n ab_fw-la broad-way_n as_o cf_n there_o will_v be_v two_o stone_n acd_v and_o efb_v i_o say_v the_o stone_n cut_v through_o the_o line_n cd_o each_o of_o they_o will_v have_v its_o pole_n of_o the_o world_n in_o the_o stone_n agd_v the_o north-pole_n will_v be_v a_o the_o south_n g._n in_o the_o stone_n efb_n the_o north_n will_v be_v h_n the_o south_n b_o and_o that_o be_v beyond_o all_o admiration_n that_o the_o point_n gh_o whilst_o the_o stone_n be_v but_o one_o be_v but_o one_o as_o be_v agree_v together_o they_o have_v the_o same_o force_n but_o when_o the_o stone_n be_v divide_v each_o part_n will_v hold_v its_o virtue_n and_o be_v quite_o contrary_a and_o at_o enmity_n for_o g_z always_o turn_v to_o the_o south_n and_o h_n to_o the_o north_n and_o every_o bit_n will_v have_v its_o pole_n and_o if_o you_o fit_v the_o divide_a stone_n with_o boat_n a_o and_o h_n will_v turn_v to_o the_o north_n g_o and_o b_o to_o the_o south_n and_o the_o same_o will_v fall_v out_o if_o you_o divide_v agnostus_n and_o hb_n into_o many_o small_a piece_n and_o if_o you_o afterward_o join_v all_o these_o piece_n together_o as_o they_o be_v their_o mutual_a discord_n of_o nature_n will_v be_v present_o reconcile_v wherefore_o cardanus_n say_v false_a that_o the_o loadstone_n draw_v where_o it_o have_v but_o a_o thin_a cover_n and_o more_o in_o one_o part_n then_o another_o for_o it_o attract_v only_o from_o one_o certain_a point_n as_o it_o have_v its_o position_n before_o in_o the_o mine_n chap._n v._n that_o the_o polar_n line_n in_o the_o loadstone_n be_v not_o stable_n but_o movable_a but_o the_o like_a wonder_n of_o nature_n can_v but_o be_v admire_v among_o many_o that_o god_n have_v make_v and_o therefore_o i_o will_v have_v no_o man_n ignorant_a thereof_o this_o polar_n line_n speak_v of_o be_v not_o always_o certain_a in_o the_o same_o place_n nor_o do_v it_o stand_v always_o firm_a but_o change_n and_o take_v the_o contrary_a position_n but_o this_o be_v constant_a in_o it_o that_o it_o always_o run_v through_o the_o middle_n of_o the_o stone_n like_o a_o king_n that_o have_v always_o his_o court_n or_o fort_n in_o the_o midst_n of_o his_o country_n for_o consist_v in_o the_o centre_n from_o whence_o the_o extreme_a part_n be_v as_o it_o be_v the_o circumference_n it_o can_v easy_o send_v its_o force_n to_o all_o part_n and_o defend_v itself_o but_o a_o example_n shall_v clear_v this_o let_v the_o stone_n be_v aecf_n and_o let_v the_o line_n ac_fw-la run_v through_o the_o length_n of_o it_o be_v the_o polar_n line_n we_o speak_v of_o wherein_o the_o force_n of_o it_o reside_v which_o run_v from_o the_o north_n to_o the_o south-pole_n i_o say_v if_o you_o divide_v the_o stone_n in_o two_o piece_n by_o the_o line_n ac_fw-la that_o one_o piece_n may_v be_v aed_n the_o other_o bcf_n if_o they_o be_v take_v asunder_o that_o the_o force_n of_o it_o do_v not_o reside_v in_o the_o extreme_a part_n of_o the_o line_n ad_fw-la or_o bc_n but_o be_v divide_v in_o the_o middle_n the_o force_n be_v receive_v in_o the_o middle_n of_o each_o stone_n and_o in_o the_o stone_n aed_n it_o will_v be_v gh_a and_o in_o bcf_n it_o will_v be_v il_fw-fr which_o can_v be_v speak_v without_o admiration_n that_o in_o a_o dead_a stone_n there_o shall_v be_v a_o live_a virtue_n to_o move_v itself_o who_o be_v there_o unless_o he_o try_v it_o that_o will_v believe_v these_o thing_n for_o as_o the_o line_n that_o stretch_v from_o north_n to_o south_n be_v in_o the_o prime_n so_o if_o you_o divide_v the_o stone_n into_o a_o thousand_o part_n that_o force_n be_v send_v into_o all_o those_o part_n each_o of_o they_o hold_v its_o own_o line_n in_o the_o middle_n of_o it_o so_o if_o we_o shall_v divide_v the_o part_n aed_n into_o other_o part_n and_o shall_v part_v the_o small_a of_o they_o what_o part_n soever_o be_v part_v from_o its_o confine_n it_o will_v have_v that_o same_o lively_a force_n run_v long-way_n through_o the_o middle_n of_o it_o and_o so_o it_o will_v be_v if_o you_o divide_v the_o stone_n into_o the_o small_a sand_n but_o the_o great_a wonder_n be_v that_o if_o you_o joit_v all_o the_o part_n together_o again_o as_o they_o be_v at_o first_o they_o will_v all_o have_v the_o same_o force_n unite_v and_o that_o will_v retire_v into_o the_o middle_n of_o the_o stone_n chap._n vi_o that_o the_o force_n of_o north_n and_o south_n be_v vigorous_a in_o the_o point_n but_o what_o be_v more_o wonderful_a though_o the_o force_n retreat_v to_o the_o middle_n of_o the_o stone_n yet_o it_o do_v not_o send_v itself_o forth_o by_o the_o middle_n but_o by_o the_o extreme_a part_n of_o the_o stone_n and_o lie_v still_o in_o the_o middle_n as_o if_o it_o be_v asleep_a but_o it_o be_v awake_a in_o the_o end_n and_o there_o it_o come_v forth_o but_o if_o a_o man_n break_v the_o stone_n he_o shall_v see_v it_o more_o perfect_o i_o shall_v give_v a_o example_n for_o such_o that_o be_v curious_a to_o search_v out_o the_o virtue_n of_o the_o loadstone_n let_v the_o loadstone_n be_v ab_fw-la and_o a_o the_o north_n pole_n b_o the_o south_n i_o say_v that_o in_o ab_fw-la the_o end_n of_o the_o stone_n the_o force_n be_v great_a and_o in_o the_o middle_n of_o the_o line_n iln_n it_o be_v more_o weak_a and_o drowsy_a unless_o there_o be_v any_o virtue_n unknown_a in_o the_o right_n and_o left_a side_n cd_o but_o the_o near_a it_o be_v to_o the_o north_n or_o south_n the_o more_o it_o augment_v but_o the_o far_a off_o it_o be_v the_o more_o it_o faint_v break_v the_o stone_n in_o c_o and_o g_o wherein_o there_o lay_v hide_v a_o virtue_n unperceived_a but_o it_o will_v appear_v when_o the_o stone_n be_v break_v and_o show_v its_o property_n and_o one_o point_n will_v show_v forth_o the_o north_n the_o other_o the_o south_n and_o if_o these_o thing_n seem_v superfluous_a yet_o be_v they_o necessary_a as_o the_o ground_n of_o what_o i_o must_v say_v chap._n vii_o that_o by_o the_o touch_n of_o other_o stone_n those_o point_n will_v not_o change_v their_o force_n and_o because_o i_o say_v that_o the_o loadstone_n do_v not_o always_o hold_v its_o force_n equal_a but_o that_o one_o stone_n be_v more_o powerful_a in_o operation_n then_o another_o for_o some_o be_v faint_a and_o weak_a i_o shall_v put_v the_o first_o question_n whether_o by_o rub_v and_o touch_v the_o weak_a stone_n with_o the_o strong_a those_o force_n will_v be_v change_v or_o stay_v as_o they_o be_v as_o if_o a_o loadstone_n be_v sluggish_a in_o point_v out_o the_o pole_n whether_o in_o a_o strong_a stone_n rub_v with_o the_o north_n point_n upon_o the_o north_n point_n of_o the_o weak_a can_v help_v it_o at_o all_o or_o if_o we_o shall_v rub_v the_o south_n point_n of_o the_o other_o on_o the_o north_n point_n of_o this_o whether_o the_o north_n point_v rub_v on_o will_v be_v go_v and_o become_v the_o south_n point_n or_o continue_v in_o its_o former_a virtue_n where_o we_o have_v not_o reason_n to_o direct_v we_o experience_n shall_v prove_v it_o for_o let_v a_o loadstone_n be_v of_o what_o force_n and_o property_n it_o may_v be_v by_o rub_v it_o against_o
with_o the_o south_n point_n to_o the_o north_n i_o come_v to_o the_o three_o part_n that_o be_v to_o the_o iron_n touch_v with_o the_o loadstone_n and_o they_o be_v all_o wonderful_a i_o say_v then_o that_o when_o we_o know_v the_o north_n point_n of_o the_o stone_n and_o we_o have_v rub_v one_o end_n of_o the_o iron_n with_o it_o if_o it_o be_v equal_o balance_v or_o hang_v by_o a_o thread_n or_o lie_v free_o in_o a_o boat_n it_o will_v turn_v of_o itself_o to_o the_o south_n and_o that_o stand_v with_o reason_n for_o the_o loadstone_n impart_v its_o force_n to_o the_o iron_n for_o it_o be_v the_o natural_a force_n of_o the_o loadstone_n that_o be_v balance_v equal_o it_o shall_v turn_v its_o north_n point_n to_o the_o north_n and_o his_o south_n point_n to_o the_o south_n but_o when_o it_o be_v rub_v on_o the_o iron_n the_o upper_a part_n of_o the_o loadstone_n be_v fasten_v to_o the_o iron_n but_o the_o low_a part_n that_o be_v near_o to_o it_o be_v free_v wherefore_o if_o you_o rub_v the_o iron_n with_o the_o north_n part_n which_o fasten_v to_o the_o iron_n and_o touch_v its_o external_a superficies_n it_o will_v be_v northern_a that_o seem_v to_o to_o be_v southern_a and_o this_o south_n part_n will_v turn_v free_o to_o the_o north_n but_o contrary_o if_o you_o rub_v the_o south_n point_n against_o the_o iron_n the_o south_n point_n be_v fasten_v to_o the_o iron_n and_o the_o north_n point_n be_v let_v loose_a that_o turn_v to_o the_o north_n wherefore_o cardanus_n speak_v false_a that_o the_o iron_n touch_v by_o the_o north_n point_n will_v turn_v to_o the_o north_n and_o that_o which_o be_v touch_v by_o the_o south_n point_n will_v turn_v south_n for_o we_o see_v the_o contrary_n yet_o the_o iron_n must_v be_v touch_v with_o one_o point_n either_o the_o north_n or_o south_n point_n for_o if_o one_o part_n bend_v northward_o the_o other_o will_v tend_v southward_a by_o the_o use_n whereof_o so_o large_a sea_n be_v sail_v over_o that_o be_v the_o conductor_n our_o ancestor_n sail_v by_o see_v the_o sun_n by_o day_n and_o the_o star_n by_o night_n for_o in_o the_o middle_n of_o the_o sea_n as_o they_o wander_v they_o can_v no_o otherwise_o see_v the_o coast_n of_o the_o world_n but_o we_o can_v only_o discover_v what_o coast_n we_o be_v in_o but_o we_o can_v avoid_v the_o rock_n under_o the_o water_n and_o in_o cloudy_a day_n and_o dark_a night_n we_o can_v at_o all_o time_n know_v the_o pole_n of_o the_o world_n flavius_o say_v a_o italian_a find_v it_o out_o first_o who_o name_n be_v amalphus_n bear_v in_o our_o campania_n but_o he_o know_v not_o the_o mariner_n card_n but_o stick_v the_o needle_n in_o a_o reed_n or_o a_o piece_n of_o wood_n cross_z over_z and_o he_o put_v the_o needle_n into_o a_o vessel_n full_a of_o water_n that_o they_o may_v float_v free_o then_o carry_v about_o the_o loadstone_n the_o needle_n will_v follow_v it_o which_o be_v take_v away_o as_o by_o a_o certain_a natural_a motion_n the_o point_n of_o the_o needle_n will_v turn_v to_o the_o north_n pole_n and_o have_v find_v that_o stand_v still_o wherefore_o know_v the_o place_n before_o they_o steer_v their_o course_n thither_o now_o the_o mariner_n compass_n be_v make_v and_o a_o needle_n touch_v with_o the_o loadstone_n be_v so_o fit_v to_o it_o that_o by_o discover_v the_o pole_n by_o it_o all_o other_o part_n of_o the_o heaven_n be_v know_v there_o be_v make_v a_o rundle_n with_o a_o latin-navel_n upon_o a_o point_n of_o the_o same_o metal_n that_o it_o may_v run_v roundly_o free_o whereupon_o by_o the_o touch_v only_o of_o one_o end_n the_o needle_n not_o alone_o partake_v of_o the_o virtue_n of_o it_o but_o of_o the_o other_o end_n also_o whether_o it_o will_v or_o not_o for_o if_o you_o rub_v the_o needle_n with_o the_o north_n point_n of_o the_o stone_n present_o that_o part_n will_v turn_v to_o the_o south_n and_o the_o opposite_a part_n to_o the_o north_n and_o one_o virtue_n can_v be_v impart_v without_o the_o other_o so_o the_o needle_n touch_v by_o the_o south_n point_n of_o the_o stone_n will_v turn_v to_o the_o north_n and_o the_o other_o part_n to_o the_o south_n so_o that_o the_o part_n of_o the_o needle_n that_o be_v touch_v receive_v a_o contrary_a force_n from_o that_o the_o stone_n have_v chap._n xxxiii_o that_o iron_n touch_v by_o the_o loadstone_n will_v impart_v that_o force_n to_o other_o iron_n iron_n touch_v by_o the_o loadstone_n by_o that_o touch_n receive_v the_o virtue_n of_o the_o loadstone_n that_o it_o will_v do_v almost_o as_o much_o by_o attract_v and_o effect_v and_o turn_v itself_o to_o the_o pole_n so_o the_o iron_n hang_v free_o touch_v with_o the_o south_n point_n of_o the_o loadstone_n will_v turn_v free_o to_o the_o north_n if_o you_o apply_v the_o south_n part_n of_o the_o stone_n to_o the_o same_o it_o will_v turn_v to_o the_o south_n present_o but_o if_o you_o touch_v another_o iron_n with_o the_o iron_n that_o be_v touch_v that_o will_v turn_v to_o the_o south_n and_o do_v but_o point_v at_o it_o with_o the_o say_a point_n of_o the_o iron_n it_o will_v turn_v to_o the_o north_n and_o this_o force_n be_v not_o only_o send_v into_o the_o second_o iron_n but_o to_o a_o three_o and_o four_o as_o the_o force_n of_o the_o loadstone_n be_v for_o if_o it_o be_v a_o strong_a stone_n it_o will_v send_v its_o virtue_n through_o eight_o or_o ten_o needle_n chap._n xxxiv_o the_o virtue_n receive_v in_o the_o iron_n be_v weaken_v by_o one_o that_o be_v strong_a yet_o this_o i_o must_v tell_v you_o that_o the_o virtue_n receive_v by_o the_o iron_n be_v not_o fix_v and_o certain_a but_o be_v take_v off_o by_o a_o strong_a that_o take_v it_o from_o it_o as_o a_o iron_n touch_v by_o a_o weak_a northern_a point_n of_o the_o loadstone_n if_o you_o rub_v the_o same_o part_n of_o the_o iron_n with_o a_o south_n point_n of_o a_o strong_a loadstone_n it_o will_v vanish_v and_o that_o former_a force_n of_o turn_v itself_o to_o the_o south_n be_v take_v away_o and_o it_o take_v a_o southern_a virtue_n and_o will_v turn_v to_o the_o north_n without_o resistance_n but_o if_o the_o lodestone_n be_v of_o equal_a force_n they_o be_v so_o astonish_v and_o blunt_v that_o they_o will_v neither_o receive_v both_o nor_o either_o chap._n xxxv_o how_o in_o a_o stone_n the_o south_n or_o north_n point_n be_v discern_v among_o those_o way_n i_o show_v before_o i_o shall_v set_v down_o this_o also_o and_o perchance_o this_o be_v the_o best_a how_o to_o know_v the_o true_a northern_a and_o southern_a point_n let_v the_o loadstone_n be_v turn_v round_o by_o the_o wheel_n of_o the_o jeweller_n and_o polish_a then_o make_v a_o slender_a iron_n as_o long_o as_o the_o axeltre_n of_o that_o round_a ball_n and_o lay_v that_o upon_o the_o stone_n for_o it_o will_v turn_v itself_o upon_o that_o line_n that_o point_v just_a north_n and_o south_n mark_v the_o line_n upon_o the_o stone_n with_o some_o delible_a paint_n do_v the_o same_o on_o the_o otherside_n of_o the_o stone_n and_o where_o it_o rest_v upon_o the_o ball_n draw_v the_o same_o line_n do_v the_o same_o the_o three_o and_o four_o time_n upon_o the_o middle_n of_o it_o and_o where_o those_o line_n cross_v one_o the_o other_o and_o meet_a those_o be_v the_o polar_n point_v we_o may_v also_o find_v it_o out_o thus_o break_v a_o small_a needle_n and_o put_v the_o small_a piece_n upon_o the_o same_o ball_n and_o stir_v it_o for_o when_o it_o come_v to_o the_o just_a northern_a point_n the_o needle_n will_v stand_v upright_o that_o will_v make_v stander_n by_o admire_v and_o will_v stand_v perpendicular_o upon_o it_o and_o till_o it_o do_v rise_v thus_o be_v not_o weary_a of_o move_v it_o up_o and_o down_o for_o when_o you_o have_v find_v it_o you_o will_v be_v glad_a of_o it_o chap._n xxxvi_o how_o to_o rub_v the_o iron_n needle_n of_o the_o mariner_n compass_n i_o know_v that_o some_o be_v trouble_v how_o to_o rub_v the_o needle_n in_o the_o compass_n with_o the_o loadstone_n that_o it_o may_v get_v force_n to_o turn_v itself_o to_o the_o north_n pole_n it_o must_v be_v do_v thus_o when_o you_o have_v find_v the_o point_n in_o the_o stone_n as_o i_o say_v before_o strike_v the_o point_n light_o with_o a_o hammer_n and_o the_o plate_n will_v be_v full_a of_o stiff_a hair_n upon_o which_o if_o you_o rub_v a_o iron_n needle_n it_o will_v present_o get_v virtue_n to_o turn_v itself_o to_o the_o pole_n yet_o observe_v this_o that_o if_o you_o will_v have_v your_o needle_n turn_v to_o the_o north_n you_o must_v rub_v it_o on_o the_o south_n point_n but_o if_o to_o the_o south_n rub_v it_o with_o the_o
go_v along_o with_o the_o part_n it_o agree_v with_o or_o will_v go_v from_o that_o part_n it_o be_v contrary_a to_o by_o which_o reason_n you_o may_v know_v that_o one_o hinder_v the_o other_o we_o may_v also_o by_o another_o experiment_n be_v make_v more_o certain_a of_o the_o same_o thing_n if_o you_o draw_v one_o loadstone_n with_o another_o and_o let_v it_o hang_v in_o the_o air_n if_o to_o the_o place_n where_o they_o join_v you_o apply_v the_o contrary_a force_n of_o another_o loadstone_n by_o this_o meeting_n with_o their_o enemy_n both_o their_o force_n will_v fail_v and_o faint_v and_o if_o the_o same_o be_v of_o a_o great_a force_n the_o stone_n that_o draw_v will_v let_v the_o other_o go_v and_o fall_v from_o it_o and_o also_o not_o without_o mirth_n and_o admiration_n you_o shall_v see_v a_o chain_n of_o many_o piece_n of_o lodestone_n hang_v together_o and_o if_o you_o apply_v the_o contrary_a side_n to_o the_o three_o or_o four_o stone_n the_o chain_n be_v present_o 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compass_n of_o its_o virtue_n chap._n xvi_o that_o the_o force_n of_o draw_v and_o drive_v off_o can_v be_v hinder_v by_o no_o hindrance_n but_o this_o be_v above_o all_o wonder_n that_o you_o can_v never_o wonder_v so_o much_o as_o you_o shall_v that_o the_o force_n of_o the_o stone_n for_o attraction_n and_o repel_v can_v be_v include_v in_o no_o bound_n can_v be_v hinder_v by_o nothing_o or_o hold_v back_o but_o it_o will_v penetrate_v invisible_o and_o will_v move_v and_o stir_v those_o stone_n that_o be_v sympathize_v with_o it_o if_o they_o be_v put_v to_o it_o and_o will_v exercise_v its_o force_n as_o if_o there_o be_v nothing_o between_o but_o this_o must_v be_v within_o the_o compass_n of_o its_o virtue_n for_o if_o you_o hang_v some_o loadstone_n fit_o upon_o a_o table_n of_o wood_n stone_n or_o metal_n or_o lie_v equal_o balance_v and_o you_o shall_v put_v your_o loadstone_n under_o the_o table_n and_o stir_v it_o there_o the_o virtue_n of_o it_o will_v pass_v from_o this_o 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and_o slay_v and_o the_o better_a the_o loadstone_n be_v the_o high_a will_v these_o hair_n stretch_v forth_o themselves_o and_o as_o i_o move_v my_o hand_n by_o little_a and_o little_a so_o the_o army_n march_v on_o and_o when_o the_o stone_n come_v near_o to_o one_o the_o other_o they_o seem_v to_o fight_v and_o run_v one_o within_o the_o other_o so_o the_o other_o wing_n and_o troop_n come_v on_o and_o show_v the_o form_n of_o a_o battle_n and_o you_o may_v see_v they_o sometime_o retreat_v sometime_o march_v forward_o sometime_o to_o conquer_v and_o sometime_o to_o be_v conquer_v sometime_o to_o lift_v up_o their_o spear_n and_o lay_v they_o down_o again_o as_o the_o loadstone_n be_v put_v near_o to_o they_o or_o farther_z off_o and_o the_o more_o force_n there_o be_v to_o send_v forth_o every_o way_n but_o this_o be_v the_o great_a wonder_n because_o what_o be_v do_v on_o a_o plain_a board_n may_v be_v do_v hang_v in_o the_o air_n that_o you_o may_v see_v they_o like_o the_o 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north_n part_n for_o when_o it_o be_v equal_o balance_v it_o will_v turn_v to_o these_o point_n in_o the_o heaven_n but_o that_o it_o may_v do_v it_o more_o forcible_o and_o do_v its_o office_n more_o exact_o i_o shall_v lay_v down_o some_o rule_v fit_a to_o instruct_v you_o if_o you_o strike_v both_o end_n of_o the_o stone_n with_o the_o hammer_n that_o hair_n may_v appear_v on_o both_o part_n that_o you_o touch_v the_o needle_n at_o both_o end_n for_o so_o the_o needle_n will_v soon_o do_v its_o office_n moreover_o you_o must_v observe_v very_o careful_o that_o when_o the_o iron_n rub_v against_o the_o loadstone_n have_v receive_v these_o hair_n that_o you_o touch_v it_o with_o no_o other_o iron_n or_o loadstone_n but_o keep_v it_o far_o distant_a from_o they_o and_o lock_v it_o up_o in_o a_o box_n for_o by_o touch_v of_o other_o the_o iron_n will_v grow_v dull_a and_o lose_v its_o virtue_n that_o it_o will_v never_o point_v out_o the_o part_n of_o heaven_n perfect_o for_o the_o 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observe_v this_o iron_z once_o rub_v will_v hold_v the_o virtue_n a_o hundred_o year_n and_o will_v certain_o without_o fail_v point_v exact_o at_o the_o pole_n in_o the_o heaven_n for_o so_o long_a time_n chap._n xxxvii_o of_o the_o divers_a use_n of_o mariner_n compass_n and_o the_o needle_n touch_v do_v not_o only_o show_v the_o pole_n for_o the_o mariner_n use_v but_o almost_o it_o serve_v for_o infinite_a use_n as_o all_o man_n know_v that_o it_o be_v daily_o speak_v of_o every_o where_o i_o shall_v speak_v of_o some_o of_o the_o chief_a the_o use_n of_o the_o loadstone_n upon_o the_o needle_n be_v well_o know_v in_o sun-dial_n for_o when_o the_o needle_n stand_v still_o over_o the_o line_n that_o be_v make_v from_o north_n to_o south_n we_o be_v so_o direct_v by_o it_o to_o know_v the_o hour_n by_o the_o shadow_n fall_v from_o the_o gnomon_n also_o those_o that_o work_n in_o mine_n use_v the_o needle_n to_o find_v the_o vein_n of_o the_o metal_n which_o way_n they_o run_v for_o in_o cave_n under_o ground_n in_o that_o posture_n the_o needle_n stand_v that_o be_v touch_v with_o the_o loadstone_n they_o know_v the_o vein_n of_o the_o metal_n run_v on_o that_o side_n of_o the_o heaven_n also_o it_o do_v serve_v very_o much_o for_o those_o that_o describe_v platform_n of_o building_n city_n country_n whilst_o the_o situation_n of_o the_o corner_n be_v take_v and_o describe_v upon_o the_o paper_n we_o use_v it_o also_o in_o make_v passage_n for_o to_o bring_v water_n under_o ground_n in_o dig_v pit_n in_o make_v mine_n and_o trench_n wherewith_o they_o use_v with_o great_a skill_n to_o blow_v up_o fort_n castle_n rock_n and_o wall_n by_o put_v gunpowder_n into_o they_o and_o stop_v all_o place_n of_o vent_n the_o compass_n guide_v they_o how_o to_o go_v on_o last_o how_o to_o level_v the_o discharge_n of_o canon_n both_o by_o night_n and_o day_n it_o be_v of_o singular_a virtue_n and_o for_o many_o other_o use_n too_o tedicus_fw-la to_o relate_v here_o chap._n xxxviii_o how_o the_o longitude_n of_o the_o world_n may_v be_v find_v out_o by_o help_n of_o the_o loadstone_n i_o will_v not_o omit_v that_o among_o the_o principal_a use_n of_o the_o loadstone_n by_o the_o help_n of_o it_o the_o longitude_n of_o the_o world_n may_v be_v find_v out_o which_o notable_a work_n have_v employ_v the_o wit_n of_o the_o most_o know_a man_n it_o have_v be_v observe_v a_o long_a time_n by_o our_o man_n that_o the_o needle_n touch_v with_o the_o loadstone_n will_v not_o always_o rest_v upon_o the_o meridian_n line_n but_o sometime_o will_v decline_v nine_o degree_n from_o it_o to_o the_o east_n nor_o will_v it_o hold_v the_o same_o posture_n in_o all_o place_n but_o in_o divers_a place_n it_o have_v divers_a declination_n but_o this_o error_n seem_v to_o follow_v this_o order_n that_o the_o near_a it_o be_v to_o the_o east_n the_o more_o it_o will_v decline_v from_o the_o meridian_n line_n towards_o the_o east_n and_o the_o near_a it_o come_v to_o the_o west_n the_o point_n of_o the_o needle_n will_v decline_v the_o more_o to_o the_o west_n for_o find_v the_o meridian_n line_n as_o ptolemy_n and_o other_o geometrician_n teach_v how_o and_o set_v up_o a_o point_n thereon_o that_o the_o steel_n needle_n may_v turn_v free_o upon_o the_o top_n of_o it_o in_o italy_n it_o decline_v towards_o the_o east_n nine_o degree_n of_o which_o there_o be_v ninety_o in_o a_o quadrant_a of_o a_o circle_n as_o it_o be_v observe_v in_o sun-dial_n that_o be_v bring_v out_o of_o germany_n and_o it_o be_v so_o describe_v moreover_o many_o famous_a traveller_n report_n that_o among_o the_o fortunate_a island_n one_o be_v call_v the_o azore_n where_o the_o needle_n set_v in_o the_o compass_n will_v rest_v direct_o upon_o the_o meridian_n line_n without_o any_o variation_n at_o all_o also_o they_o that_o sail_v to_o the_o west-indy_n observe_v that_o the_o point_n of_o the_o needle_n will_v decline_v to_o the_o west_n therefore_o lay_v down_o these_o for_o true_a maxim_n we_o may_v easy_o know_v the_o longitude_n of_o the_o world_n for_o if_o we_o make_v a_o very_a great_a compass_n about_o five_o foot_n diameter_n and_o divide_v the_o degree_n and_o minute_n into_o second_o and_o three_o etc._n etc._n and_o sail_v under_o the_o equator_fw-la we_o do_v observe_v the_o chief_a motion_n of_o the_o needle_n and_o the_o declination_n of_o it_o and_o shall_v accommodate_v the_o same_o to_o the_o proportion_n of_o our_o voyage_n we_o shall_v easy_o know_v the_o longitude_n of_o the_o world_n begin_v from_o the_o fortunate_a island_n whence_o both_o longitude_n and_o latitude_n in_o dark_a night_n and_o the_o great_a tempest_n may_v be_v certain_o discover_v wherefore_o it_o be_v false_a that_o cardanus_n say_v that_o the_o needle_n in_o the_o compass_n decline_v from_o the_o meridian_n line_n because_o it_o incline_v to_o the_o pole_n star_n in_o the_o little_a bear_n tail_n whereas_o the_o needle_n decline_v nine_o degree_n and_o the_o polar_a inclination_n be_v not_o so_o much_o chap._n thirty-nine_o if_o the_o mariner_n needle_n stand_v still_o and_o the_o loadstone_n move_v or_o contra_o they_o will_v move_v contrary_a way_n if_o the_o loadstone_n lie_v on_o the_o table_n and_o you_o put_v the_o north_n point_n of_o the_o mariner_n needle_n to_o the_o south_n point_n of_o the_o stone_n and_o shall_v carry_v it_o round_o about_o by_o the_o right_a hand_n the_o needle_n will_v draw_v to_o the_o left_a but_o move_v the_o box_n to_o the_o left_a hand_n the_o needle_n will_v run_v to_o the_o right_n and_o it_o will_v go_v so_o far_o until_o it_o stand_v in_o the_o middle_n between_o those_o two_o opposite_a point_n the_o same_o will_v be_v see_v in_o a_o sundial_n if_o that_o stand_v and_o the_o loadstone_n be_v carry_v about_o for_o if_o you_o decline_v to_o the_o right_a hand_n the_o needle_n will_v follow_v the_o same_o part_n and_o likewise_o if_o you_o turn_v to_o the_o left_a hence_o it_o be_v apparent_a that_o the_o 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if_o you_o put_v that_o part_n to_o it_o from_o which_o it_o receive_v its_o force_n it_o will_v not_o endure_v it_o but_o drive_v it_o from_o it_o and_o draw_v to_o it_o the_o contrary_a and_o opposite_a part_n namely_o the_o southern_a part_n the_o reason_n whereof_o i_o set_v down_o before_o the_o same_o fall_v out_o if_o you_o touch_v the_o needle_n with_o the_o south_n part_n of_o the_o loadstone_n for_o if_o you_o present_o put_v the_o same_o to_o it_o it_o will_v resist_v it_o and_o draw_v to_o it_o the_o north_n point_fw-fr hence_o the_o part_n that_o be_v alike_o be_v at_o enmity_n and_o reject_v as_o adversary_n and_o the_o part_n that_o be_v unlike_a do_v agree_v as_o friend_n whence_o it_o be_v apparent_a that_o the_o loadstone_n impart_v to_o the_o iron_n a_o contrary_a force_n from_o what_o the_o end_n itself_o be_v and_o the_o steel_n receive_v the_o force_n of_o that_o point_n of_o the_o loadstone_n which_o it_o touch_v not_o and_o i_o prove_v it_o thus_o take_v two_o needle_n and_o put_v they_o in_o boat_n or_o hang_v they_o by_o thread_n that_o be_v touch_v with_o the_o loadstone_n they_o may_v move_v free_o they_o be_v contrary_a one_o to_o the_o other_o and_o they_o will_v join_v in_o the_o part_n that_o be_v touch_v with_o contrary_a end_n of_o the_o loadstone_n and_o will_v not_o endure_v the_o end_n that_o be_v alike_o chap._n xli_o two_o needle_n touch_v by_o the_o loadstone_n obtain_v contrary_a force_n i_o will_v relate_v a_o strange_a thing_n yet_o not_o far_o from_o reason_n if_o you_o touch_v two_o needle_n with_o a_o loadstone_n together_o and_o set_v they_o on_o the_o same_o point_n of_o it_o the_o other_o part_n that_o hang_v on_o the_o loadstone_n will_v abhor_v and_o fly_v one_o from_o the_o other_o and_o if_o you_o force_v they_o together_o with_o your_o hand_n so_o soon_o as_o you_o let_v they_o alone_o they_o will_v present_o return_v to_o their_o posture_n and_o depart_v as_o far_o as_o they_o can_v from_o one_o another_o the_o 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chap._n xlii_o that_o the_o force_n of_o the_o iron_n that_o draw_v will_v drive_v off_o iron_n by_o diversity_n of_o situation_n that_o as_o i_o say_v of_o the_o loadstone_n alone_o be_v true_a of_o the_o iron_n that_o be_v touch_v with_o it_o for_o if_o you_o put_v a_o needle_n touch_v with_o a_o loadstone_n by_o a_o boat_n swim_v in_o the_o water_n or_o hang_v by_o a_o thread_n or_o turn_v on_o a_o point_n equal_o balance_v if_o you_o put_v upon_o this_o a_o needle_n touch_v with_o a_o loadstone_n it_o will_v draw_v it_o and_o that_o part_n that_o attract_v the_o iron_n above_o will_v put_v underneath_o drive_v it_o away_o and_o the_o part_n that_o drive_v off_o above_o will_v draw_v to_o it_o put_v underneath_o where_o you_o may_v observe_v that_o the_o position_n will_v work_v contrary_a operation_n chap._n xliii_o the_o needle_n touch_v by_o the_o loadstone_n on_o one_o part_n do_v not_o always_o receive_v virtue_n on_o both_o part_n if_o the_o needle_n be_v touch_v at_o one_o 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