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end_n north_n side_n south_n 2,400 5 9.1749 5 true
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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A04327 Magneticall aduertisements: or Diuers pertinent obseruations, and approued experiments, concerning the natures and properties of the load-stone Very pleasant for knowledge, and most needfull for practise, of trauelling, or framing of instruments fit for trauellers both by sea and land. Whereunto is anexed a breife discouerie of the idle animaduersions of Mark Ridley Dr. in Physicke, vpon a treatise entituled Magneticall aduertisements. Barlow, William, d. 1625.; Barlow, William, d. 1625. Breife discovery of the idle animadversions of Marke Ridley. aut; Gilbert, William, 1540-1603. De magnete. 1618 (1618) STC 1444; ESTC S100862 50,744 107

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this_o do_v i_o in_o a_o stone_n that_o be_v all_o of_o like_a substance_n but_o if_o it_o be_v one_o that_o be_v intermingle_v of_o diverse_a substance_n as_o many_o such_o there_o be_v and_o those_o easy_o discern_v by_o their_o colour_n you_o may_v sometime_o take_v away_o three_o quarter_n and_o more_o of_o his_o substance_n without_o diminish_v any_o thing_n at_o all_o of_o his_o virtue_n for_o colour_n most_o common_o the_o ironlike_a be_v best_a very_o black_a or_o whitish_a seldom_o prove_v good_a gray_a indifferent_a the_o more_o white_a in_o any_o stone_n so_o much_o the_o worse_o there_o be_v certain_a that_o be_v of_o a_o iron_n colour_n mingle_v with_o red_a of_o which_o some_o be_v very_o good_a some_o but_o indifferent_a by_o three_o way_n you_o may_v prove_v whether_o a_o magnet_n be_v good_a or_o not_o the_o one_o be_v by_o take_v up_o iron_n with_o the_o bare_a stone_n the_o other_o by_o give_v more_o or_o less_o virtue_n unto_o a_o knife_n or_o any_o such_o thing_n 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a_o compass_n also_o chap._n four_o by_o what_o mean_v the_o chief_a point_n of_o any_o magnet_n of_o what_o form_n soever_o may_v easy_o be_v find_v out_o make_v a_o respective_a or_o declinatorie_a needle_n of_o a_o inch_n or_o thereabouts_o in_o length_n and_o give_v he_o his_o touch_n fasten_v he_o by_o his_o axis_n upon_o a_o little_a fork_a stick_n or_o any_o such_o thing_n that_o the_o needle_n may_v have_v free_a scope_n then_o offer_v the_o stone_n near_o the_o needle_n turn_v it_o round_o about_o and_o immediate_o you_o shall_v see_v the_o north_n of_o the_o needle_n as_o it_o be_v as_o yet_o common_o call_v because_o it_o point_v unto_o the_o north_n point_v direct_o unto_o the_o true_a north_n end_n of_o the_o stone_n as_o soon_o as_o it_o come_v near_o unto_o it_o and_o as_o you_o turn_v away_o the_o end_n of_o the_o stone_n the_o needle_n will_v point_v still_o somewhat_o towards_o it_o till_o the_o south_n end_n of_o the_o stone_n approach_v for_o than_o will_v the_o 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better_o perform_v with_o a_o small_a narrow_a loadstone_n of_o half_a a_o inch_n more_o or_o less_o in_o length_n have_v in_o the_o end_v his_o due_a point_n of_o north_n and_o south_n and_o wrought_v over_o with_o silk_n of_o two_o colour_n from_o the_o middle_n to_o each_o end_n as_o for_o example_n yellow_a and_o white_a that_o part_n which_o point_v to_o the_o north_n let_v it_o be_v wrought_v over_o with_o white_a and_o the_o other_o with_o yellow_a then_o if_o you_o hang_v that_o in_o the_o middle_n by_o a_o fine_a silk_n thread_n and_o apply_v it_o unto_o any_o other_o loadstone_n the_o south_n end_n of_o the_o one_o will_v ready_o find_v out_o the_o north_n end_n of_o the_o other_o and_o contrariwise_o in_o like_a manner_n with_o this_o magnetical_a instrument_n you_o may_v see_v two_o pretty_a conclusion_n the_o one_o if_o you_o touch_v a_o knife_n with_o the_o end_n of_o a_o forcible_a loadstone_n whether_o it_o be_v north_n or_o south_n and_o hang_v this_o wrought_v one_o 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whether_o it_o be_v your_o north_n or_o south_n end_v the_o effect_n will_v soon_o declare_v the_o four_o way_n have_v a_o ordinary_a dial_n with_o a_o magnetical_a needle_n or_o a_o sail_a compass_n or_o any_o magnetical_a needle_n stand_v on_o a_o sharp_a pin_n hold_v near_o thereunto_o the_o stone_n turn_v it_o in_o your_o hand_n then_o will_v the_o north_n end_n of_o the_o needle_n i_o mean_v the_o end_n that_o point_v to_o the_o north_n respect_v the_o true_a north_n point_n of_o the_o stone_n the_o five_o way_n also_o if_o you_o touch_v a_o common_a sow_a needle_n the_o long_a the_o better_o and_o put_v ti_fw-mi through_o a_o little_a piece_n of_o cork_n not_o big_a than_o may_v well_o bear_v it_o up_o so_o that_o by_o the_o mean_n thereof_o it_o may_v swim_v in_o a_o basin_n of_o water_n the_o same_o if_o you_o offer_v the_o stone_n unto_o it_o will_v show_v the_o like_a effect_n and_o here_o it_o be_v to_o be_v remember_v that_o none_o other_o way_n whatsoever_o will_v more_o ready_o or_o true_o define_v the_o magnetical_a meridian_n than_o this_o of_o the_o needle_n with_o corcke_n in_o the_o water_n and_o therefore_o as_o it_o be_v very_o requisite_a for_o many_o purpose_n that_o every_o traveller_n either_o by_o land_n or_o especial_o by_o sea_n shall_v always_o have_v if_o he_o may_v a_o equinoctial_a dial_n with_o he_o so_o will_v i_o not_o wish_v that_o any_o of_o they_o shall_v be_v without_o some_o sow_a needle_n touch_v with_o a_o good_a stone_n which_o will_v both_o serve_v the_o proper_a use_n of_o sow_v without_o impair_n their_o touch_n for_o it_o be_v open_a air_n and_o rust_n that_o be_v the_o great_a enemy_n thereof_o and_o at_o any_o time_n with_o a_o piece_n of_o corcke_n or_o a_o dry_a stick_n in_o the_o water_n will_v show_v the_o magnetical_a meridian_n a_o matter_n though_o mean_a and_o trivial_a in_o show_n yet_o between_o while_n of_o so_o great_a importance_n that_o it_o may_v serve_v to_o save_v very_o many_o man_n life_n a_o six_o way_n also_o if_o you_o prepare_v a_o little_a round_a loadstone_n of_o a_o quarter_n of_o a_o inch_n diameter_n or_o there_o about_o but_o it_o must_v be_v a_o very_a good_a one_o have_v his_o two_o pole_n mark_v and_o fit_v in_o such_o manner_n that_o it_o easy_o turn_v about_o in_o a_o little_a frame_n according_a unto_o this_o picture_n the_o like_a also_o in_o his_o sort_n will_v come_v to_o pass_v if_o you_o hang_v a_o small_a declinatorie_n needle_n in_o a_o frame_n in_o this_o manner_n then_o by_o move_v it_o in_o his_o frame_n all_o over_o the_o stone_n the_o north_n pole_n of_o this_o will_v find_v the_o south_n of_o the_o other_o and_o likewise_o will_v the_o south_n the_o north_n of_o the_o great_a one_o for_o it_o be_v not_o in_o outward_a show_n between_o one_o magnet_n and_o another_o as_o it_o be_v between_o a_o magnet_n and_o a_o magnetical_a needle_n the_o contrary_a end_n of_o the_o magnet_n will_v covet_v in_o their_o motion_n to_o meet_v together_o but_o the_o end_n of_o the_o needle_n which_o turn_v north_n will_v come_v unto_o the_o north_n of_o the_o stone_n for_o in_o very_a truth_n it_o be_v the_o south_n point_n of_o the_o needle_n even_o as_o the_o magnet_n itself_o be_v place_v in_o a_o wooden_a dish_n in_o water_n will_v turn_v with_o his_o north_n end_n unto_o the_o south_n and_o with_o his_o south_n end_n dish_n and_o all_o towards_o the_o north_n as_o it_o be_v large_o declare_v in_o the_o second_o chapter_n of_o this_o book_n the_o like_a effect_n will_v also_o follow_v if_o you_o hang_v as_o aforesaid_a a_o small_a magnet_n in_o the_o middle_n by_o a_o small_a silk_n thread_n that_o it_o may_v free_o turn_v without_o impediment_n according_a unto_o his_o own_o nature_n but_o this_o property_n it_o will_v show_v quick_a or_o slow_a according_a unto_o the_o goodness_n of_o the_o substance_n and_o fitness_n of_o the_o form_n the_o best_a form_n for_o this_o purpose_n be_v the_o extend_a oval_a have_v his_o pole_n precise_o in_o his_o end_n if_o his_o pole_n be_v some_o pretty_a distance_n the_o one_o end_n towards_o the_o east_n of_o the_o stone_n and_o the_o other_o asmuch_o towards_o the_o west_n this_o stone_n in_o his_o length_n will_v not_o point_v unto_o the_o magnetical_a north_n and_o south_n as_o otherwise_o he_o will_v but_o unto_o some_o other_o point_n of_o the_o horizon_n yea_o follow_a this_o experiment_n in_o this_o sort_n you_o may_v make_v he_o stand_v unto_o any_o point_n of_o the_o compass_n only_o you_o ought_v to_o abridge_v the_o stone_n in_o his_o length_n that_o he_o may_v come_v somewhat_o near_o unto_o a_o circular_a form_n that_o so_o his_o diameter_n of_o north_n and_o south_n be_v through_o the_o magnetisme_n of_o the_o earth_n the_o cause_n of_o this_o motion_n may_v be_v so_o much_o the_o long_o in_o comparison_n of_o the_o mass_n of_o the_o stone_n and_o consequent_o more_o effectual_a after_o the_o like_a manner_n you_o may_v so_o touch_v the_o wire_n of_o a_o compass_n that_o the_o flower_n de_fw-fr luce_fw-fr of_o the_o fly_n shall_v stand_v unto_o what_o point_n of_o the_o horizon_n you_o please_v although_o the_o diameter_n of_o the_o wire_n do_v still_o remain_v fix_v under_o the_o flower_n de_fw-fr luce_fw-fr and_o the_o south_n point_n of_o the_o card_n final_o to_o conclude_v this_o point_n with_o a_o magnetical_a delight_n if_o you_o touch_v two_o sow_a needle_n in_o a_o contrary_a sort_n that_o be_v the_o point_n of_o the_o one_o northerly_a and_o of_o the_o other_o southerly_a and_o set_v they_o with_o their_o corcke_n the_o one_o at_o the_o one_o side_n of_o a_o basin_n of_o water_n and_o the_o other_o at_o the_o other_o you_o shall_v see_v they_o as_o quicken_v with_o vital_a spirit_n even_o so_o to_o move_v the_o one_o end_n towards_o the_o other_o at_o the_o first_o fair_a and_o soft_o but_o when_o they_o draw_v near_o they_o will_v rush_v together_o as_o it_o be_v with_o a_o kind_n of_o violence_n the_o point_n of_o the_o one_o strike_v precise_o at_o the_o point_n of_o the_o other_o you_o must_v place_v the_o needle_n who_o point_n be_v touch_v for_o the_o north_n on_o the_o south_n side_n of_o of_o the_o basin_n and_o the_o other_o on_o the_o other_o side_n otherwise_o the_o head_n and_o not_o the_o point_n will_v run_v together_o a_o thing_n far_o more_o worthy_a of_o admiration_n than_o all_o the_o self_n moover_n of_o any_o daedalus_n or_o architas_n tarentinus_n and_o more_o strange_a to_o behold_v then_o the_o connexion_n of_o iron_n ring_v combine_v by_o virtue_n magnetical_a whereat_o s._n augustine_n so_o much_o and_o that_o just_o do_v wonder_n chap._n v._o the_o manner_n of_o cap_v both_o with_o single_a and_o double_a cap_n and_o the_o nature_n of_o they_o the_o stone_n be_v bring_v unto_o his_o perfect_a form_n you_o must_v have_v a_o mould_n make_v of_o iron_n of_o the_o very_a same_o proportion_n in_o every_o respect_n and_o equal_v in_o all_o his_o dimension_n then_o set_v the_o stone_n aside_o let_v 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of_o a_o loadstone_n b._n a_o long_a square_a piece_n the_o end_n iron_n the_o middle_a copper_n c._n have_v a_o less_o space_n of_o copper_n and_o d._n least_o of_o all_o if_o you_o apply_v the_o loadstone_n unto_o a_o he_o will_v hold_v a_o very_a strong_o but_o if_o you_o put_v any_o of_o the_o other_o three_o piece_n under_o a_o that_o it_o may_v touch_v any_o of_o they_o he_o will_v not_o by_o any_o mean_n lift_v it_o up_o if_o you_o apply_v the_o loadstone_n unto_o b_o he_o will_v take_v it_o up_o very_o weak_o and_o c_o somewhat_o more_o strong_o but_o d_o strong_a of_o all_o these_o three_o yet_o not_o comparable_a to_o the_o strength_n wherewith_o he_o take_v up_o a._n again_o although_o the_o loadstone_n take_v up_o b_o but_o weak_o yet_o if_o you_o place_n b_o upon_o a_o he_o will_v take_v they_o both_o very_o strong_o yea_o more_o place_z b_o upon_o c_o these_o two_o upon_o d_o all_o three_o upon_o a_o apply_v the_o loadstone_n unto_o b_o be_v the_o uppermost_a and_o he_o 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it_o be_v two_o loose_a piece_n of_o iron_n hang_v in_o the_o air_n the_o two_o force_n of_o the_o loadstone_n north_n and_o south_n distinct_o and_o several_o pass_v through_o they_o downward_o into_o a_o which_o it_o can_v not_o do_v if_o it_o have_v be_v one_o entire_a piece_n of_o iron_n and_o so_o all_o those_o four_o piece_n be_v place_v one_o upon_o another_o so_o that_o a_o be_v undermost_a whether_o direct_o or_o sidewise_o the_o loadstone_n will_v easy_o lift_v they_o all_o up_o and_o not_o otherwise_o when_o a_o loadstone_n lift_v up_o iron_n at_o one_o end_n only_o the_o virtue_n of_o the_o stone_n be_v infuse_v into_o the_o whole_a body_n downward_o of_o that_o iron_n if_o it_o be_v not_o very_o long_o but_o when_o by_o the_o mean_n of_o the_o double_a cap_n both_o end_n do_v lift_v iron_n joint_o together_o he_o infuse_v very_o small_a force_n downward_o into_o the_o body_n of_o the_o iron_n that_o it_o lift_v up_o for_o the_o force_n of_o the_o both_o end_n be_v so_o 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as_o one_o and_o possible_o the_o worst_a will_v do_v more_o good_a alone_o where_o he_o may_v orderly_o and_o free_o use_v his_o own_o strength_n than_o he_o and_o all_o the_o many_o of_o they_o can_v do_v be_v join_v together_o in_o vicinity_n of_o body_n but_o extreme_o distract_v through_o contrariety_n of_o course_n the_o only_a way_n to_o perform_v such_o a_o matter_n if_o it_o be_v worth_a a_o do_v will_v be_v to_o prepare_v one_o mighty_a great_a loadstone_n of_o excellent_a goodness_n which_o have_v his_o due_a proportion_n after_o a_o extend_v oval_a form_n shall_v be_v sit_v with_o double_a cap_n and_o so_o place_v in_o the_o roof_n of_o a_o building_n that_o his_o axis_n be_v parallel_n to_o the_o horizon_n in_o this_o sort_n out_o of_o all_o doubt_n a_o fair_a large_a image_n may_v be_v hold_v up_o very_o strong_o by_o such_o a_o magnet_n let_v the_o stuff_n or_o substance_n thereof_o be_v whatsoever_o howbeit_o the_o light_a the_o better_o so_o that_o there_o be_v fasten_v unto_o the_o uppermost_a part_n of_o the_o image_n a_o small_a piece_n of_o iron_n according_o prepare_v and_o place_v for_o the_o two_o prominent_a end_n of_o the_o double_a cap_n of_o the_o stone_n to_o lay_v hold_v thereon_o but_o enough_o hereof_o in_o the_o cap_v of_o magnet_n this_o general_a rule_n be_v to_o be_v observe_v that_o they_o ought_v to_o be_v make_v of_o the_o fine_a and_o soft_a iron_n and_o not_o of_o steel_n the_o weight_n also_o which_o the_o magnet_n take_v up_o shall_v be_v of_o the_o like_a iron_n and_o not_o of_o steel_n as_o aforesaid_a for_o although_o steel_n retain_v at_o the_o least_o ten_o time_n as_o much_o virtue_n as_o iron_n when_o it_o be_v once_o separate_v from_o the_o stone_n can_v do_v yet_o as_o long_o as_o there_o be_v any_o contiguitie_n between_o the_o stone_n and_o they_o he_o hold_v iron_n more_o strong_o than_o steel_n both_o which_o difference_n in_o either_o of_o they_o by_o manifest_a experience_n be_v certain_a and_o seem_v to_o proceed_v of_o notable_a fastness_n or_o closeness_n in_o the_o steel_n above_o the_o iron_n by_o mean_n whereof_o the_o magnetical_a virtue_n do_v long_a and_o more_o forcible_o continue_v in_o that_o then_o in_o this_o even_o as_o fire_v more_o mighty_o possess_v and_o for_o a_o great_a space_n abide_v in_o stone_n or_o any_o such_o firm_a or_o solid_a matter_n then_o in_o wood_n or_o straw_n or_o the_o like_a thin_a and_o hollow_a substance_n and_o therefore_o those_o compasse-maker_n that_o make_v the_o wire_n of_o their_o fly_n for_o sail_a compass_n of_o mere_a iron_n ought_v not_o by_o any_o mean_n to_o be_v suffer_v for_o to_o gain_v two_o penny_n in_o a_o compass_n and_o
scarce_o that_o they_o intolerable_o abuse_v those_o that_o travel_n by_o sea_n to_o their_o great_a danger_n and_o mischief_n chap._n vi_o of_o cement_n and_o piece_n of_o lodestone_n for_o your_o simmon_n do_v thus_o take_v the_o fine_a powder_n of_o a_o loadstone_n half_o so_o much_o powder_n of_o new_a brick_n make_v very_o small_a and_o subtle_a one_o part_n of_o burgundy_n pitch_n half_o so_o much_o rossen_n a_o small_a portion_n of_o unwrought_a wax_n mingle_v all_o these_o together_o very_o well_o upon_o a_o soft_a fire_n and_o make_v the_o whole_a mass_n in_o little_a roll_n now_o when_o you_o will_v cement_v a_o stone_n do_v thus_o heat_n the_o two_o piece_n of_o the_o stone_n very_o hot_a and_o likewise_o the_o simmon_a than_o strike_v the_o place_n that_o you_o will_v solder_v over_o with_o the_o simmon_a very_o thin_o and_o join_v they_o somewhat_o hard_o together_o let_v they_o so_o stand_v until_o they_o be_v cold_a and_o you_o shall_v have_v it_o full_o as_o strong_a as_o if_o it_o be_v a_o entire_a stone_n of_o itself_o and_o not_o to_o be_v sever_v but_o by_o great_a heat_n of_o fire_n in_o piece_v of_o the_o lodestone_n there_o must_v diligent_a heed_n be_v take_v to_o the_o nature_n of_o the_o loadstone_n in_o general_a and_o also_o to_o those_o particular_a piece_n which_o you_o will_v join_v together_o the_o loadstone_n in_o general_n as_o it_o be_v show_v before_o that_o his_o force_n issue_v as_o it_o be_v from_o a_o centre_n in_o the_o middle_n of_o the_o stone_n to_o all_o the_o superficies_n thereof_o universal_o but_o most_o strong_o unto_o the_o pole_n from_o the_o middle_n one_o way_n the_o stone_n be_v all_o of_o a_o northerly_a nature_n and_o all_o of_o it_o southerly_a the_o other_o way_n for_o example_n a._n must_v be_v join_v upon_o a_o and_o b._n upon_o b_o but_o if_o you_o join_v the_o two_o so_o that_o a._n light_v upon_o b_o you_o mar_v the_o new_a magnet_n by_o confound_v his_o force_n notwithstanding_o if_o you_o like_v to_o join_v they_o in_o length_n only_o not_o in_o thickness_n than_o indeed_o must_v you_o combine_v b._n and_o a_o and_o not_o a._n and_o a_o nor_o b._n and_o b_o lest_o here_o also_o you_o incur_v the_o former_a inconvenience_n of_o confusion_n of_o force_n take_v another_o example_n suppose_v a_o loadstone_n to_o be_v long_o and_o somewhat_o round_o small_a at_o one_o end_n then_o at_o the_o other_o the_o small_a end_n to_o be_v north_n sign_v with_o a_o the_o other_o south_n sign_v with_o b_o let_v this_o magnet_n be_v divide_v long-waye_n into_o two_o equal_a part_n through_o both_o the_o pole_n a._n and_o b._n and_o let_v one_o of_o these_o half_n be_v place_v upon_o a_o piece_n of_o glass_n or_o a_o smooth_a table_n certain_a it_o be_v that_o if_o you_o do_v offer_v to_o touch_v a_o of_o this_o with_o a_o of_o the_o other_o this_o a_o will_v turn_v away_o from_o that_o which_o the_o stone_n be_v entire_a it_o do_v join_v with_o before_o or_o if_o you_o offer_v b_o unto_o b_o it_o will_v do_v the_o like_a and_o no_o marvel_n for_o in_o this_o case_n of_o touch_v a_o with_o a_o or_o b_o with_o b_o what_o else_o in_o effect_n do_v you_o but_o attempt_v to_o join_v the_o two_o half_n in_o length_n and_o that_o at_o like_a end_n a_o thing_n direct_o repugnant_a to_o the_o principle_n of_o magnetical_a philosophy_n but_o let_v i_o admonish_v you_o to_o put_v the_o round_a side_n of_o the_o stone_n downward_o next_o unto_o the_o glass_n that_o it_o may_v turn_v the_o quick_a yet_o if_o the_o stone_n be_v excellent_a it_o will_v do_v the_o same_o also_o upon_o the_o flat_a side_n moreover_o if_o you_o place_v this_o two_o half_n the_o one_o upon_o the_o other_o precise_o as_o they_o be_v at_o the_o first_o they_o will_v agree_v very_o well_o because_o they_o be_v as_o one_o and_o the_o self-same_a magnet_n but_o if_o you_o place_v they_o the_o one_o swerve_v from_o the_o other_o at_o either_o end_n then_o will_v a_o of_o the_o one_o turn_v about_o unto_o b_o of_o the_o other_o because_o they_o be_v now_o as_o two_o several_a and_o diverse_a magnet_n for_o the_o better_a conceive_v hereof_o you_o be_v to_o remember_v that_o every_o part_n of_o a_o loadstone_n be_v it_o a_o half_a or_o any_o other_o be_v once_o divide_v from_o the_o whole_a be_v as_o schoolman_n call_v it_o totum_fw-la integrale_fw-la a_o whole_a loadstone_n by_o itself_o utter_o diverse_a and_o estrange_v from_o that_o whole_a who_o part_n before_o it_o be_v and_o therefore_o retain_v distinct_o in_o itself_o all_o the_o property_n of_o a_o loadstone_n though_o not_o so_o strong_a as_o the_o whole_a have_v when_o this_o be_v join_v thereunto_o in_o lodestone_n there_o be_v a_o part_n true_o say_v to_o be_v divide_v from_o the_o whole_a when_o the_o point_n of_o that_o part_n or_o end_n or_o pole_n and_o so_o by_o necessary_a consequence_n the_o axis_n and_o aequator_fw-la in_o which_o the_o universal_a frame_n of_o magnetical_a power_n consist_v have_v a_o position_n diverse_a from_o the_o pole_n or_o point_n of_o the_o whole_a for_o this_o cause_n in_o the_o last_o example_n the_o one_o half_a a_o b_o be_v suppose_v to_o swerve_v from_o the_o other_o half_a b_o a_o at_o either_o end_n must_v needs_o present_o be_v divide_v from_o it_o and_o now_o can_v be_v pars_fw-la integri_fw-la but_o be_v of_o necessity_n totum_fw-la integrale_fw-la a_o several_a and_o absolute_a magnet_n of_o itself_o and_o so_o by_o a_o essential_a property_n common_a to_o all_o magnet_n covet_v with_o his_o point_n a_o the_o contrary_a b_o of_o that_o which_o be_v under_o it_o wherefore_o like_o as_o exact_v agreement_n be_v between_o two_o mathematical_a figure_n when_o be_v apply_v together_o the_o extreme_n of_o the_o one_o do_v precise_o fall_v upon_o the_o extreme_n of_o the_o other_o each_o upon_o his_o correspondent_a extreme_a and_o be_v make_v one_o therewith_o even_o such_o be_v the_o perfect_a composition_n or_o set_v together_o of_o the_o part_n of_o a_o magnetical_a body_n and_o namely_o of_o those_o two_o equal_a part_n before_o exemplify_v you_o must_v so_o join_v one_o upon_o another_o that_o the_o two_o extreme_n or_o end_n be_v always_o of_o the_o same_o nature_n northerly_a or_o southerly_a in_o both_o part_n and_o that_o by_o due_a application_n of_o the_o part_n the_o two_o northerly_a end_n be_v unite_v and_o become_v one_o as_o also_o the_o two_o southerly_a end_n after_o the_o same_o manner_n but_o if_o these_o part_n be_v of_o equal_a length_n be_v join_v longwise_o the_o north_n of_o the_o one_o unto_o the_o south_n of_o the_o other_o those_o two_o end_n that_o be_v be_v now_o no_o end_n but_o the_o just_a middle_n of_o one_o magnet_n have_v lose_v their_o property_n which_o they_o have_v when_o they_o be_v end_n for_o those_o property_n by_o this_o unition_n be_v abolish_v but_o their_o other_o end_n still_o reserve_v their_o former_a and_o strong_a virtue_n of_o north_n and_o south_n and_o so_o according_a unto_o magnetical_a nature_n one_o magnet_n shall_v have_v but_o two_o pole_n the_o one_o north_n the_o other_o south_n again_o if_o you_o will_v piece_n two_o lodestone_n together_o in_o thickness_n the_o one_o of_o they_o be_v long_o than_o the_o other_o than_o you_o must_v either_o cut_v the_o long_o that_o it_o may_v be_v fit_a in_o length_n unto_o the_o short_a or_o else_o piece_n the_o short_a in_o such_o sort_n as_o be_v afore_o describe_v that_o he_o be_v equal_a in_o length_n to_o the_o long_o &_o what_o soever_o disorderly_a part_n perhaps_o shall_v be_v in_o any_o of_o they_o they_o may_v even_o after_o they_o be_v cement_v very_o well_o be_v ground_n away_o also_o if_o there_o be_v hole_n or_o dent_n with_o little_a piece_n of_o lodestone_n cement_v their_o point_n be_v observe_v they_o may_v be_v fill_v up_o without_o any_o manner_n of_o damage_n or_o deformity_n no_o more_o than_o there_o have_v not_o be_v any_o such_o at_o all_o and_o after_o this_o method_n you_o may_v with_o labour_n and_o industry_n of_o many_o magnet_n make_v one_o as_o huge_a and_o of_o what_o form_n you_o please_v and_o although_o the_o magnet_n of_o this_o body_n magnetical_o compact_v as_o i_o have_v here_o show_v be_v never_o so_o many_o in_o number_n yet_o the_o whole_a will_v have_v but_o two_o principal_a point_n the_o one_o north_n the_o other_o south_n even_o as_o if_o it_o be_v one_o natural_a loadstone_n and_o all_o of_o they_o will_v contribute_v their_o force_n unto_o those_o two_o point_n so_o that_o if_o there_o be_v twenty_o of_o they_o be_v after_o this_o order_n cement_v together_o into_o one_o body_n the_o whole_a will_v have_v but_o two_o point_n but_o if_o you_o will_v place_v they_o in_o a_o vault_n according_a
to_o a_o mason_n trade_n they_o will_v have_v 40_o point_n twenty_o north_n and_o as_o many_o south_n and_o will_v work_v the_o like_a effect_n in_o draw_v iron_n as_o to_o use_v the_o former_a gross_a similitude_n if_o a_o team_n of_o horse_n be_v set_v in_o their_o trace_n contrary_a the_o one_o to_o the_o other_o the_o one_o to_o pull_v one_o way_n the_o other_o another_o as_o for_o the_o turk_n mahomet_n hang_v in_o the_o air_n with_o his_o iron_n chest_n it_o be_v a_o most_o gross_a untruth_n and_o utter_o impossible_a be_v it_o for_o any_o thing_n so_o to_o hang_v in_o the_o air_n by_o any_o magnetical_a power_n but_o that_o either_o it_o must_v touch_v the_o stone_n itself_o or_o else_o some_o intermediate_v body_n that_o hinder_v it_o from_o come_v to_o the_o stone_n like_a as_o before_o i_o have_v show_v or_o else_o some_o stay_v below_o to_o keep_v it_o from_o ascend_v as_o some_o small_a wire_n that_o may_v scant_o be_v see_v or_o perceive_v chap._n vii_o of_o the_o variation_n of_o the_o magnetical_a needle_n with_o the_o appurtenance_n thereunto_o belong_v the_o variation_n of_o the_o magnetical_a needle_n be_v apt_o fit_v and_o place_v upon_o his_o pin_n be_v nothing_o else_o but_o the_o swerve_a of_o the_o point_v thereof_o in_o the_o horizon_n from_o the_o meridian_n line_n there_o the_o portion_n of_o the_o horizon_n intercept_v between_o the_o true_a meridian_n line_n and_o this_o point_v show_v of_o what_o quantity_n the_o variation_n be_v and_o give_v it_o his_o name_n to_o wit_n which_o way_n it_o lie_v either_o easterly_a or_o westerly_n and_o it_o be_v observe_v by_o either_o end_n of_o the_o needle_n as_o you_o please_v in_o time_n past_o man_n observe_v only_o by_o the_o north_n end_n of_o the_o needle_n because_o they_o understand_v not_o that_o the_o loadstone_n have_v a_o south_n virtue_n as_o well_o as_o a_o north_n and_o therefore_o do_v touch_v their_o needle_n and_o wyar_n of_o their_o compass_n always_o for_o the_o north_n only_o leave_v those_o end_n of_o the_o wyar_n bare_a that_o they_o may_v be_v refresh_v with_o a_o new_a touch_n at_o any_o time_n afterward_o but_o the_o other_o end_v they_o cover_v not_o know_v that_o they_o be_v also_o apt_a to_o receive_v as_o forcible_a a_o virtue_n from_o the_o loadstone_n for_o the_o south_n as_o the_o other_o for_o the_o north._n for_o the_o right_a understanding_n of_o the_o variation_n with_o his_o necessary_a dependent_n we_o must_v use_v the_o mean_n of_o two_o circle_n the_o one_o of_o they_o i_o will_v call_v the_o magnetical_a almicanter_n the_o other_o be_v already_o know_v by_o the_o name_n of_o the_o magnetical_a meridian_n this_o magnetical_a almicanter_n be_v a_o circle_n parallel_n unto_o the_o horizon_n who_o centre_n be_v the_o vertical_a point_n and_o be_v describe_v by_o the_o distance_n between_o the_o vertical_a point_n and_o the_o near_a pole_n of_o the_o earth_n the_o true_a magnetical_a pole_n be_v the_o pole_n of_o the_o earth_n the_o magnetical_a respective_a pole_n or_o which_o be_v all_o one_o the_o pole_n of_o the_o magnetical_a meridian_n be_v a_o point_n in_o the_o magnetical_a almicanter_n distant_a easterly_n or_o westerly_a from_o the_o true_a pole_n as_o many_o degree_n in_o that_o almicanter_n as_o the_o variation_n of_o that_o place_n contain_v in_o the_o horizon_n but_o always_o it_o be_v in_o the_o contrary_a part_n of_o the_o true_a meridian_n that_o be_v if_o the_o variation_n of_o the_o south_n point_n of_o the_o needle_n be_v easterly_a the_o respective_a pole_n be_v westerly_a but_o if_o you_o observe_v with_o the_o north_n end_n of_o the_o needle_n the_o respective_a pole_n and_o the_o variation_n be_v both_o one_o way_n in_o all_o our_o northern_a climate_n if_o the_o variation_n of_o the_o south_n point_n of_o the_o needle_n be_v westerly_a then_o be_v the_o respective_a pole_n so_o many_o degree_n in_o the_o say_a almicanter_n easterly_n and_o therefore_o always_o of_o the_o same_o height_n with_o the_o true_a pole_n above_o the_o horizon_n for_o since_o all_o great_a circle_n of_o the_o globe_n do_v necessary_o cut_v one_o another_o in_o two_o point_n into_o two_o equal_a part_n these_o two_o therefore_o must_v needs_o do_v even_o so_o in_o the_o zenith_n and_o nadir_n by_o their_o very_a definition_n so_o that_o these_o two_o point_n the_o zenith_n and_o nadir_n be_v always_o alike_o common_a unto_o they_o both_o aswell_o unto_o the_o true_a as_o unto_o the_o magnetical_a meridian_n where-hence_a it_o follow_v necessary_o that_o always_o the_o one_o half_a of_o the_o magnetical_a meridian_n be_v on_o the_o east-side_n and_o the_o other_o on_o the_o west_n side_n of_o the_o true_a meridian_n the_o common_a zenith_n and_o nadir_n evermore_o keep_v their_o equal_a distance_n from_o the_o pole_n of_o the_o one_o of_o they_o as_o they_o do_v from_o the_o other_o for_o example_n suppose_v the_o common_a zenith_n to_o be_v in_o the_o aequator_fw-la you_o sail_a east_n or_o west_n as_o long_o as_o there_o be_v no_o variation_n there_o be_v no_o magnetical_a meridian_n there_o be_v no_o magnetical_a pole_n but_o those_o of_o the_o world_n but_o as_o soon_o as_o sail_v still_o under_o the_o line_n you_o do_v find_v a_o variation_n it_o be_v the_o magnetical_a meridian_n that_o by_o his_o swerve_v from_o the_o true_a meridian_n of_o the_o world_n in_o the_o horizon_n show_v the_o quantity_n of_o the_o variation_n and_o give_v it_o also_o the_o denomination_n of_o easterly_n or_o westerly_n and_o his_o axis_fw-la be_v the_o line_n of_o variation_n but_o suppose_v the_o common_a zenith_n to_o be_v in_o any_o parallel_n between_o the_o aequator_fw-la and_o the_o pole_n then_o be_v it_o not_o the_o axis_fw-la but_o some_o other_o diameter_n of_o the_o magnetical_a meridian_n which_o show_v the_o variation_n in_o the_o horizon_n and_o the_o magnetical_a meridian_n evermore_o cut_v just_a so_o many_o degree_n of_o the_o magnetical_a almicanter_n on_o the_o one_o side_n of_o the_o true_a meridian_n as_o the_o same_o magnetical_a pole_n be_v distant_a in_o the_o same_o almicanter_n on_o the_o other_o side_n of_o the_o true_a meridian_n from_o the_o pole_n of_o the_o world_n and_o this_o be_v to_o be_v understand_v in_o correspondent_a manner_n as_o well_o of_o the_o south_n hemisphere_n as_o of_o the_o north._n the_o respective_a magnetical_a meridian_n where_o any_o variation_n be_v be_v a_o circle_n that_o pass_v by_o the_o vertical_a point_n and_o the_o nadir_n and_o both_o the_o respective_a pole_n cross_v the_o horizon_n at_o right_a angle_n in_o the_o point_n of_o variation_n of_o which_o circle_n the_o line_n of_o variation_n be_v a_o diameter_n but_o where_o there_o be_v no_o variation_n the_o true_a and_o magnetical_a meridian_n be_v both_o one_o &_o the_o self_n same_o and_o so_o in_o like_a manner_n be_v their_o diameter_n those_o circle_n and_o pole_n be_v term_v respective_a because_o that_o in_o every_o place_n where_o any_o variation_n be_v the_o magnetical_a needle_n do_v respect_v they_o as_o well_o in_o the_o property_n of_o direction_n as_o in_o that_o of_o declination_n or_o inclination_n for_o thus_o also_o very_o well_o it_o may_v be_v term_v by_o the_o property_n of_o direction_n i_o do_v mean_a with_o doctor_n gilbert_n the_o horizontall_a motion_n of_o the_o magnetical_a needle_n by_o the_o declination_n or_o inclination_n i_o mean_v the_o descend_v and_o as_o it_o be_v the_o sink_a motion_n of_o the_o need_n under_o the_o horizon_n in_o his_o proper_a azimath_n or_o magnetical_a meridian_n but_o if_o there_o be_v no_o variation_n the_o needle_n always_o point_v unto_o the_o true_a meridian_n of_o the_o earth_n and_o towards_o the_o pole_n thereof_o in_o both_o those_o property_n the_o true_a pole_n of_o the_o earth_n which_o be_v those_o two_o point_n equal_o distant_a from_o each_o part_n of_o the_o aequinoctial_a of_o the_o earth_n be_v always_o the_o self_n same_o the_o respective_a pole_n alter_v with_o every_o horizon_n where_o there_o be_v any_o variation_n but_o never_o out_o of_o the_o aforenamed_a almicanter_n of_o that_o place_n the_o cause_n of_o the_o difference_n of_o the_o respective_a pole_n and_o meridian_n from_o the_o true_a pole_n and_o meridians_fw-la and_o so_o of_o all_o variation_n be_v only_o two_o the_o chief_a and_o most_o general_a be_v the_o vastenesse_n of_o the_o ocean_n sea_n by_o moistness_n whereof_o the_o magnetical_a collateral_a force_n of_o so_o much_o earth_n as_o it_o cover_v be_v much_o hinder_v and_o dull_v and_o by_o that_o mean_v the_o next_o great_a continent_n have_v more_o power_n over_o the_o correspondent_a end_n of_o the_o magnetical_a needle_n then_o otherwise_o it_o can_v have_v if_o all_o be_v alike_o one_o entire_a continent_n and_o therefore_o cause_v the_o directive_a property_n of_o the_o needle_n somewhat_o to_o swerve_v towards_o that_o way_n
from_o the_o stone_n with_o a_o stick_n and_o lay_v it_o upon_o the_o end_n of_o a_o needle_n not_o touch_v and_o they_o shall_v find_v in_o it_o no_o force_n at_o all_o nay_o it_o be_v a_o hurt_n unto_o the_o needle_n for_o it_o give_v a_o superfluous_a burden_n for_o a_o small_a time_n and_o can_v but_o encumber_v his_o action_n by_o reason_n that_o every_o one_o of_o those_o little_a parcel_n of_o dust_n though_o beat_v out_o at_o one_o end_n have_v also_o for_o his_o small_a quantity_n both_o a_o north_n and_o south_n virtue_n and_o therefore_o mar_v as_o much_o as_o it_o make_v at_o either_o end_n of_o the_o needle_n the_o proof_n hereof_o be_v manifest_a if_o you_o put_v off_o that_o dust_n or_o beard_n upon_o a_o paper_n and_o hold_v a_o magnet_n therunder_n for_o as_o you_o turn_v towards_o the_o paper_n the_o north_n or_o south_n of_o the_o stone_n so_o will_v every_o one_o of_o those_o particle_n in_o like_a sort_n turn_v itself_o show_v thereby_o a_o double_a nature_n chap._n x._o of_o the_o fashion_v of_o the_o compass_n needle_n the_o compass_n needle_n be_v the_o most_o admirable_a and_o useful_a instrument_n of_o the_o whole_a world_n be_v both_o among_o we_o and_o other_o nation_n for_o the_o most_o part_n so_o bunger_o and_o absurd_o contrive_v as_o nothing_o more_o and_o therefore_o entreat_v now_o of_o the_o nature_n and_o use_n of_o the_o magnet_n i_o have_v think_v good_a also_o to_o employ_v my_o best_a endeavour_n to_o advance_v this_o noblle_fw-fr instrument_n towards_o his_o high_a perfection_n be_v the_o principal_a thing_n by_o which_o the_o worthy_a effect_n of_o the_o magnet_n be_v make_v most_o profitable_a unto_o mankind_n herein_o five_o thing_n be_v to_o be_v consider_v the_o substance_n that_o it_o be_v make_v of_o the_o form_n the_o weight_n the_o capitell_a and_o the_o pin_n it_o stand_v upon_o the_o substance_n in_o any_o wise_a aught_o to_o be_v pure_a steel_n and_o not_o iron_n for_o most_o assure_o steel_n will_v take_v at_o the_o least_o ten_o time_n more_o virtue_n than_o iron_n can_v do_v but_o especial_o if_o it_o have_v his_o right_a temper_n and_o that_o be_v this_o heat_v it_o in_o the_o fire_n until_o it_o be_v pass_v red_a hot_a that_o it_o be_v whitish_a hot_a and_o qnench_v it_o in_o cold_a water_n sudden_o so_o be_v it_o brickle_z in_o a_o manner_n as_o glass_n itself_o and_o be_v at_o that_o time_n incapable_a of_o the_o virtue_n of_o the_o loadstone_n then_o must_v you_o lay_v it_o upon_o a_o plain_a table_n wary_o rub_v with_o fine_a sand_n all_o the_o black_a colour_n from_o it_o if_o before_o you_o put_v it_o into_o the_o fire_n you_o anoint_v it_o with_o soap_n it_o will_v scale_v white_a of_o itself_o than_o heat_n a_o bar_n of_o iron_n well_o near_o red_a hot_a and_o hold_v one_o end_n of_o the_o needle_n with_o a_o small_a pair_n of_o tong_n lay_v the_o other_o end_n upon_o the_o hot_a bar_n and_o present_o you_o shall_v see_v that_o end_n turn_v from_o white_a to_o a_o yellowish_a and_o after_o to_o a_o bluish_a colour_n then_o take_v that_o end_n with_o your_o tong_n and_o do_v thlike_a unto_o the_o other_o thrusting_z it_z forward_z upon_o the_o bar_n until_o the_o colour_n of_o the_o whole_a needle_n become_v bluish_a then_o throw_v it_o on_o a_o table_n and_o let_v cool_a of_o itself_o and_o so_o be_v he_o of_o the_o excellent_a temper_n and_o most_o capable_a to_o receive_v the_o great_a power_n from_o the_o magnet_n if_o this_o seem_v too_o curious_a especial_o for_o some_o fashion_n of_o needle_n then_o use_v but_o the_o hammer_n harden_v as_o workman_n call_v it_o which_o be_v well_o near_o as_o good_a as_o concern_v the_o form_n diverse_a man_n be_v of_o diverse_a mind_n some_o use_n a_o kind_n of_o square_a one_o other_o a_o loop_n i_o mean_v a_o extend_a oval_a form_n and_o this_o be_v most_o common_a but_o now_o a_o day_n a_o narrow_a straight_a place_n be_v somewhat_o broad_a in_o the_o middle_a be_v in_o great_a request_n of_o these_o three_o i_o hold_v the_o loop_n or_o oval_a form_n if_o it_o be_v well_o make_v to_o be_v the_o best_a which_o be_v that_o if_o it_o be_v of_o steel_n his_o end_n be_v wield_v together_o have_v a_o latin_n narrow_a plate_n issue_v from_o the_o capitell_a unto_o the_o middle_n of_o the_o two_o side_n of_o the_o loope_n and_o there_o rivet_v and_o rivet_v if_o it_o be_v handsome_o shoulder_v in_o by_o the_o workman_n be_v better_a than_o soader_v because_o have_v fit_v the_o lattin_a plate_n bear_v the_o capitell_a unto_o the_o loope_n you_o may_v first_o put_v your_o loope_n into_o his_o temper_n and_o then_o rivet_v this_o unto_o he_o afterward_o which_o otherwise_o will_v be_v mar_v in_o the_o fire_n and_o the_o wide_a loope_n be_v better_a than_o the_o narrow_a or_o the_o straight_a plate_n and_o that_o for_o two_o reason_n the_o one_o be_v hecause_fw-mi as_o in_o a_o magnet_n itself_o the_o force_n that_o be_v in_o the_o whole_a body_n show_v itself_o most_o strong_o in_o his_o two_o pole_n even_o so_o this_o be_v a_o magnetical_a body_n do_v the_o like_a in_o his_o end_n which_o be_v his_o pole_n and_o the_o side_n of_o a_o wide_a compass_a loope_n be_v long_a then_o of_o a_o narrow_a of_o the_o same_o length_n in_o the_o axis_n must_v needs_o contain_v so_o much_o the_o more_o virtue_n the_o other_o reason_n be_v because_o it_o suppose_v the_o fly_n in_o his_o circular_a motion_n more_o equal_o balance_v then_o the_o other_o and_o therefore_o be_v it_o not_o for_o some_o other_o inconvenience_n a_o true_a circle_n be_v best_a of_o all_o which_o be_v that_o except_o you_o mark_v the_o two_o place_n that_o you_o will_v have_v for_o the_o north_n and_o souch_n very_o curious_o you_o shall_v never_o give_v he_o the_o right_a touch_n yea_o very_o exceed_v hardly_o although_o you_o do_v mark_v they_o and_o also_o the_o lattin_a stay_n that_o hold_v the_o capitell_a will_v be_v exceed_o long_o and_o a_o superfluous_a burden_n but_o the_o very_o best_a form_n of_o all_o as_o i_o take_v it_o in_o all_o respect_n be_v this_o a_o true_a circle_n have_v his_o axis_n go_v out_o beyond_o the_o circle_n at_o each_o end_n narrow_a and_o narrow_a unto_o a_o reasonable_a sharp_a point_n and_o be_v pure_a steel_n as_o the_o circle_n itself_o be_v hane_v in_o the_o midst_n a_o convenient_a receptacle_n to_o place_v the_o capitell_a in_o this_o circle_n must_v have_v four_o very_a small_a hole_n drill_v through_o it_o equal_o distant_a each_o from_o other_o for_o the_o four_o cardinal_a point_n and_o in_o both_o the_o two_o point_n that_o issue_n without_o the_o circle_n be_v for_o north_n and_o south_n of_o equal_a distance_n between_o the_o circle_n and_o the_o end_n of_o the_o point_n two_o more_o if_o it_o be_v a_o large_a one_o otherwise_o one_o be_v enough_o according_a unto_o this_o picture_n follow_v and_o this_o needle_n be_v most_o fit_a to_o be_v use_v for_o the_o observation_n of_o the_o variation_n alone_o without_o any_o fly_n as_o i_o will_v show_v at_o the_o latter_a end_n of_o this_o treatise_n whensoever_o you_o will_v set_v this_o needle_n unto_o the_o fly_n you_o must_v put_v the_o capitell_a through_o the_o centre_n of_o the_o fly_n very_o precise_o and_o place_v the_o point_n of_o the_o diameter_n where_o you_o will_v have_v they_o thrust_v little_o small_a pin_n through_o the_o upper_a face_n of_o the_o fly_n and_o those_o small_a hole_n in_o the_o needle_n the_o head_n of_o the_o pin_n will_v show_v you_o if_o the_o fly_v be_v large_a than_o your_o needle_n at_o what_o point_n your_o needle_n stand_v and_o bow_v the_o body_n of_o your_o pin_n be_v thrust_v through_o those_o little_a hole_n close_o to_o the_o card_n below_o will_v keep_v it_o steady_a at_o that_o place_n and_o from_o warp_a also_o and_o so_o four_o pin_n at_o the_o four_o cardinal_a point_n will_v serve_v the_o turn_n again_o if_o you_o please_v for_o to_o place_v this_o needle_n upon_o the_o upper_a face_n of_o the_o card_n according_a unto_o stevinius_fw-la it_o be_v no_o more_o but_o to_o have_v the_o capitell_a loose_a thrust_v through_o the_o centre_n in_o the_o bottom_n of_o the_o fly_n and_o the_o needle_n place_v and_o fasten_v on_o the_o top_n or_o upper_a face_n of_o the_o card_n but_o if_o you_o will_v have_v a_o magnetical_a needle_n to_o serve_v only_o for_o one_o size_n of_o a_o fly_n the_o best_a way_n be_v instead_o of_o the_o two_o pin_n in_o the_o end_n of_o the_o axis_n to_o have_v a_o couple_n of_o little_a half_a staple_n and_o a_o flower_n de_fw-fr luce_fw-fr on_o one_o of_o they_o as_o you_o see_v in_o the_o loope_n rivet_v there_o that_o in_o turn_v about_o the_o needle_n they_o may_v
still_o keep_v the_o fly_n close_o unto_o it_o and_o so_o fasten_v it_o with_o a_o screw_n upon_o the_o capitell_a wheresoever_o you_o please_v as_o for_o his_o weight_n it_o must_v be_v according_a unto_o his_o largeness_n and_o the_o weight_n be_v one_o principal_a cause_n that_o very_o large_a compass_n be_v unprofitable_a for_o the_o weight_n of_o the_o large_a card_n and_o heavy_a needle_n press_v upon_o the_o pin_n will_v cause_v the_o motion_n of_o the_o fly_n to_o be_v dull_a and_o uncertain_a and_o therefore_o let_v the_o pasteboard_n be_v no_o heavy_a than_o you_o must_v needs_o and_o for_o the_o size_n of_o six_o inch_n diameter_n of_o your_o pasteboard_n and_o a_o needle_n of_o that_o length_n i_o know_v that_o a_o needle_n of_o half_a a_o ounce_n weight_n and_o half_o a_o quartern_a at_o the_o uttermost_a if_o a_o good_a workman_n have_v it_o in_o hand_n will_v be_v very_o full_o sufficient_a of_o what_o form_n soever_o the_o capitell_a aught_o to_o be_v latin_n and_o hammer_v harden_v well_o and_o true_o bore_v not_o too_o shallow_a but_o of_o a_o good_a convenient_a depth_n and_o wideness_n at_o the_o bottom_n fit_v the_o pin_n it_o stand_v upon_o at_o the_o top_n the_o pin_n ought_v to_o be_v either_o of_o lattin_a or_o copper_n and_o not_o of_o iron_n or_o steel_n as_o some_o use_n for_o they_o be_v very_o subject_a to_o rust_v and_o the_o steel_n especial_o by_o long_a use_n will_v wear_v a_o little_a hole_n in_o the_o top_n of_o the_o capitell_a and_o by_o that_o mean_v the_o compass_n become_v dull_a and_o they_o hardly_o if_o ever_o will_v find_v the_o reason_n of_o it_o for_o the_o hole_n will_v be_v pass_o small_a and_o enter_v a_o exceed_a little_a way_n in_o and_o yet_o disturb_v all_o moreover_o in_o any_o wise_a there_o must_v be_v always_o a_o especial_a diligent_a care_n have_v of_o fitness_n between_o the_o capitell_a and_o the_o pin_n oteerwise_o all_o thing_n else_o appertain_v unto_o the_o compass_n be_v nothing_o worth_a this_o pin_n must_v be_v very_o firm_o fix_v in_o the_o just_a centre_n of_o the_o box_n and_o the_o bottom_n mark_v that_o whensoever_o you_o take_v it_o off_o to_o sharpen_v the_o pin_n which_o use_n will_v make_v blunt_a you_o may_v set_v he_o in_o the_o same_o place_n again_o as_o i_o have_v say_v that_o in_o a_o magnet_n itself_o the_o virtue_n be_v in_o the_o whole_a body_n and_o show_v itself_o most_o forcible_a in_o his_o pole_n even_o so_o likewise_o our_o compasse-needle_n be_v a_o magnetical_a body_n show_v his_o force_n in_o his_o end_n which_o be_v his_o pole_n although_o that_o force_n do_v proceed_v out_o of_o the_o whole_a body_n of_o the_o needle_n which_o now_o i_o think_v good_a to_o make_v apparent_a by_o a_o evident_a demonstration_n i_o cause_v my_o workman_n to_o make_v a_o needle_n of_o a_o loop_n fashion_n 8._o inch_n long_o or_o oval_a form_n in_o all_o respect_v fit_v to_o be_v set_v unto_o a_o fly_n save_v that_o there_o be_v but_o one_o inch_n or_o a_o little_a more_o at_o each_o end_n of_o steel_n all_o the_o intermediate_v part_n between_o the_o two_o end_n be_v of_o brass_n these_o two_o end_n i_o do_v touch_v with_o the_o north_n and_o south_n end_v of_o a_o very_a good_a magnet_n and_o whereas_o in_o a_o true_a magnetical_a needle_n i_o shall_v have_v have_v but_o two_o point_n the_o one_o north_n and_o the_o other_o south_n this_o mongrel_n yield_v i_o six_o the_o two_o end_n adjoin_v unto_o the_o brass_n of_o contrary_a nature_n unto_o the_o sharp_a point_n &_o will_v no_o more_o do_v the_o office_n of_o a_o magnetical_a needle_n than_o a_o wooden_a stick_n because_o the_o virtue_n be_v not_o in_o the_o whole_a and_o so_o communicate_v unto_o the_o two_o end_n but_o each_o end_n be_v a_o total_a of_o himself_o be_v separate_v and_o as_o it_o be_v divorce_v the_o one_o from_o all_o community_n with_o the_o other_o by_o that_o intermediate_v brass_n the_o which_o be_v take_v away_o and_o the_o two_o fork_n join_v together_o for_o that_o 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near_a vicinity_n of_o iron_n but_o especial_o of_o any_o loadstone_n no_o better_o keep_v from_o rust_n then_o by_o varnish_v he_o although_o it_o be_v but_o with_o a_o drop_n or_o two_o of_o linseed_n oil_n alone_o the_o needle_n that_o be_v continual_o upon_o his_o pin_n be_v still_o strengthen_v by_o the_o magnetical_a power_n of_o the_o earth_n set_v himself_o always_o towards_o the_o pole_n thereof_o which_o the_o other_o can_v do_v and_o need_v only_o to_o have_v his_o pin_n sharpen_v now_o and_o then_o the_o which_o of_o all_o the_o fault_n incident_a unto_o the_o compass_n be_v most_o easy_o and_o safe_o amend_v and_o yet_o if_o it_o be_v not_o very_o well_o look_v unto_o it_o disturb_v all_o the_o operation_n of_o the_o compass_n more_o than_o any_o other_o and_o diverse_a wrong_v themselves_o in_o be_v too_o busy_a in_o often_o touch_v of_o their_o compass_n the_o fault_n be_v in_o this_o which_o no_o touch_v can_v amend_v chap._n xi_o a_o sail_a compass_n fit_v for_o observe_v at_o sea_n the_o variation_n amplitude_n of_o either_o sun_n or_o star_n cape_n or_o trending_n etc._n etc._n i_o have_v think_v good_a to_o conclude_v this_o short_a treatise_n of_o magnetical_a advertisement_n with_o a_o little_a additament_n unto_o the_o ordinary_a sail_a compass_n fit_v he_o thereby_o to_o be_v answerable_a unto_o the_o title_n here_o prefix_v as_o also_o with_o a_o comparison_n of_o the_o several_a use_n of_o the_o horizontall_a and_o inclinatory_a needle_n let_v the_o glass_n of_o the_o inner_a box_n of_o the_o compass_n be_v of_o good_a thickness_n and_o strength_n but_o yet_o clear_a and_o even_o those_o that_o come_v from_o venice_n for_o look_v glass_n before_o the_o foil_n be_v set_v on_o be_v the_o best_a if_o a_o man_n may_v have_v they_o large_a enough_o let_v this_o glass_n be_v very_o well_o fit_v unto_o the_o box_n and_o simmond_v underneath_o upon_o the_o shoulder_n that_o bear_v up_o the_o glass_n with_o a_o mixture_n of_o wax_n 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end_n of_o the_o loop_n be_v precise_o in_o that_o line_n last_o of_o all_o you_o must_v have_v a_o movable_a ruler_n with_o two_o long_a fould_a sight_n of_o about_o the_o length_n of_o the_o semidiameter_n of_o the_o circle_n in_o breadth_n about_o half_a a_o inch_n the_o one_o of_o they_o must_v have_v a_o slit_n through_o the_o length_n thereof_o of_o about_o a_o quarter_n of_o a_o inch_n broad_a as_o you_o shall_v think_v convenient_a and_o two_o little_a hole_n the_o one_o in_o the_o top_n and_o the_o orhe_a in_o the_o bottom_n just_a in_o the_o middle_n of_o it_o to_o fasten_v a_o string_n have_v a_o very_a little_a bead_n to_o slide_v up_o and_o down_o upon_o it_o and_o this_o sight_n must_v be_v of_o the_o
labour_n to_o clear_v some_o think_v &c._n &c._n in_o his_o book_n mean_v i_o be_v not_o content_v only_o to_o usurp_v that_o which_o be_v proper_o i_o for_o his_o own_o as_o aforesaid_a but_o also_o he_o take_v upon_o he_o although_o very_o ignorant_o to_o confute_v some_o of_o i_o under_o these_o term_n and_o this_o only_a out_o of_o a_o steal_a manuscript_n whereas_o all_o man_n know_v that_o manu-script_n ought_v to_o be_v uncontrolled_a until_o the_o author_n have_v publish_v they_o who_o may_v alter_v and_o change_v thing_n in_o the_o mean_a space_n as_o he_o think_v good_a he_o style_v himself_o principal_a physician_n unto_o the_o emperor_n of_o russia_n the_o which_o many_o man_n wonder_v at_o be_v so_o young_a as_o he_o than_o be_v and_o suppose_v that_o he_o go_v over_o only_o as_o physician_n unto_o our_o merchant_n there_o that_o he_o shall_v in_o so_o short_a a_o time_n become_v that_o emperor_n principal_a physician_n if_o he_o be_v he_o speed_v better_a than_o bomelius_n do_v who_o be_v say_v to_o have_v die_v there_o in_o that_o cold_a climate_n of_o the_o extreme_a hot_a kind_n of_o calenture_n out_o of_o all_o question_n somewhat_o it_o be_v more_o than_o ordinary_a that_o make_v he_o of_o so_o haughty_a a_o spirit_n so_o to_o brave_v the_o world_n with_o such_o prodigious_a assertion_n of_o his_o magnetical_n in_o and_o above_o the_o moon_n the_o earth_n magnetical_a circular_a motion_n and_o his_o paltry_a abuse_n of_o the_o holy_a scripture_n to_o support_v his_o lunatic_n fiction_n under_o the_o name_n of_o magnetical_a philosophy_n there_o be_v yet_o two_o text_n of_o scripture_n which_o it_o be_v a_o wonder_n how_o they_o escape_v he_o the_o one_o be_v in_o josuah_n 10._o ver_n 12._o and_o the_o other_o be_v in_o isaiah_n 38._o ver_n 8._o in_o the_o one_o that_o the_o sun_n and_o the_o moon_n stand_v still_o the_o space_n of_o a_o whole_a day_n the_o other_o that_o the_o shadow_n in_o achas_n dial_n go_v back_o 10_o degree_n and_o the_o sun_n in_o the_o sky_n return_v 10_o degree_n by_o the_o which_o he_o be_v descend_v for_o it_o be_v his_o guise_n to_o make_v contrary_a conclusion_n unto_o that_o which_o the_o scripture_n affirm_v and_o therefore_o blame_v he_o not_o if_o he_o do_v so_o despise_v aristotle_n who_o never_o teach_v any_o such_o logic_n now_o therefore_o that_o you_o may_v in_o few_o word_n understand_v the_o untruth_n of_o the_o earth_n magnetical_a motion_n that_o be_v so_o main_o emblazon_v by_o he_o and_o the_o weakness_n of_o my_o animaduersor_n magnetical_a skill_n you_o must_v know_v that_o the_o magnetical_a motion_n be_v a_o natural_a inclination_n of_o two_o magnet_n or_o magnetical_a body_n that_o may_v free_o move_v respect_v the_o one_o the_o other_o within_o the_o orb_n of_o their_o force_n with_o their_o convenient_a end_n that_o be_v to_o say_v the_o north_n end_n of_o the_o one_o always_o respect_v the_o south_n of_o the_o other_o if_o the_o two_o magnet_n or_o magnetical_a body_n be_v of_o like_a quantity_n form_n and_o goodness_n their_o motion_n will_v be_v of_o like_a quickness_n of_o the_o one_o towards_o the_o other_o but_o if_o they_o differ_v in_o any_o of_o these_o their_o motion_n will_v be_v so_o much_o the_o slow_a now_o forasmuch_o as_o all_o magnetical_a motion_n be_v always_o respective_a of_o the_o one_o magnet_n or_o magnetical_a body_n towards_o another_o it_o follow_v by_o necessary_a consequent_a that_o no_o magnet_n or_o magnetical_a body_n can_v either_o move_v or_o be_v move_v of_o itself_o but_o be_v utter_o void_a of_o all_o intrinsical_n or_o selfe-motion_n the_o true_a and_o only_a cause_n of_o his_o motion_n be_v evermore_o without_o itself_o and_o therefore_o my_o animaduersor_n selfe-motion_n of_o the_o globe_n of_o the_o earth_n circular_o by_o magnetical_a vigour_n in_o the_o which_o he_o do_v so_o gallant_o triumph_v be_v but_o a_o idle_a figment_n and_o a_o mere_a chimaera_n but_o his_o definition_n of_o magnetical_a body_n be_v very_o suitable_a unto_o it_o viz._n very_o monstrous_a namely_o that_o we_o define_v to_o be_v a_o magnetical_a body_n which_o do_v remain_v and_o place_n itself_o in_o one_o place_n or_o kind_n of_o situation_n natural_a not_o alterable_a as_o all_o star_n do_v and_o the_o great_a regent_n globe_n of_o saturn_n mars_n jupiter_n the_o sun_n and_o the_o earth_n do_v or_o such_o as_o with_o respect_n and_o attendance_n follow_v other_o globe_n as_o the_o two_o star_n which_o support_v saturn_n the_o four_o attendant_n upon_o jupiter_n late_o discover_v by_o the_o truncke-spectacle_n the_o two_o traverser_n about_o the_o sun_n call_v venus_n and_o mercury_n and_o the_o moon_n which_o do_v follow_v or_o go_v about_o the_o earth_n and_o respect_v the_o same_o always_o with_o one_o pole_n and_o therefore_o have_v a_o peculiar_a magnetical_a virtue_n that_o guide_v she_o in_o this_o kind_n of_o situation_n auditum_fw-la admissi_fw-la risum_fw-la teneatis_fw-la amici_fw-la any_o man_n that_o consider_v this_o goodly_a definition_n be_v the_o foundation_n and_o ground_n of_o his_o magnetical_a discourse_n and_o the_o very_a first_o sentence_n of_o his_o book_n and_o many_o the_o like_a fancy_n in_o his_o motion_n and_o and_o animaduesion_n will_v easy_o discern_v what_o his_o magnetical_a skill_n be_v and_o what_o a_o vanity_n it_o be_v for_o i_o to_o spend_v any_o precious_a time_n to_o confute_v in_o particular_a such_o unreasonable_a and_o senseless_a opinion_n which_o have_v more_o need_n of_o helleborus_fw-la to_o purge_v they_o out_o of_o his_o head_n than_o argument_n to_o confute_v they_o in_o his_o book_n and_o in_o his_o frivolous_a animadversion_n seek_v to_o maintain_v his_o former_a error_n and_o he_o be_v so_o snappish_a to_o have_v they_o amend_v he_o make_v they_o ten_o time_n worse_o than_o they_o be_v before_o and_o far_o more_o palpable_a but_o my_o tetrical_a animaduersor_n must_v be_v rule_v by_o reason_n and_o afford_v all_o those_o his_o patience_n that_o do_v believe_v the_o holy_a scripture_n which_o flat_o do_v deny_v the_o earth_n motion_n and_o affirm_v the_o motion_n of_o the_o sun_n moon_n &_o star_n in_o the_o whole_a current_n thereof_o as_o psal._n 19_o 6._o 104._o 5._o josua_n 10._o 12._o 13._o 14._o isaiah_n 38._o 8._o etc._n etc._n also_o that_o he_o will_v give_v man_n leave_v to_o credit_v their_o sense_n in_o matter_n subject_a unto_o sense_n and_o not_o repugnant_a unto_o reason_n and_o that_o he_o will_v not_o be_v offend_v with_o those_o who_o do_v pitiful_o laugh_v at_o his_o magnetical_a astronomy_n with_o those_o topsy-turvy_o motion_n like_o voluitur_fw-la lxion_n &_o se_fw-la sequiturque_fw-la fugitque_fw-la for_o although_o some_o great_a learned_a man_n in_o those_o science_n have_v use_v the_o suppose_a motion_n of_o the_o earth_n for_o a_o hypothesis_n serve_v their_o ready_a calculation_n as_o they_o have_v do_v also_o their_o suppose_a epicycle_n for_o the_o motion_n of_o the_o planet_n and_o their_o course_n yet_o that_o be_v no_o reason_n for_o to_o avouch_v they_o for_o to_o be_v in_o themselves_o true_a and_o real_a thing_n according_a unto_o some_o man_n vain_a fancy_n who_o do_v argue_v after_o this_o sort_n it_o be_v a_o easy_a matter_n and_o more_o as_o they_o say_v agreeable_a unto_o nature_n for_o so_o small_a a_o body_n as_o the_o globe_n of_o the_o earth_n be_v in_o comparison_n of_o the_o heaven_n to_o move_v circular_o in_o the_o space_n of_o four_o and_o twenty_o hour_n than_o it_o be_v for_o the_o huge_a universe_n so_o to_o do_v and_o that_o which_o be_v do_v with_o less_o hazard_n be_v to_o be_v prefer_v before_o the_o like_a which_o may_v not_o be_v perform_v without_o fear_n of_o a_o great_a danger_n with_o diverse_a other_o reason_n like_v unto_o these_o but_o although_o such_o as_o these_o be_v may_v go_v current_n in_o a_o mechanical_a tradesman_n shop_n yet_o they_o be_v very_o insufficient_a to_o be_v allow_v for_o good_a by_o man_n of_o learning_n and_o christian_n by_o profession_n who_o know_v right_a well_o that_o it_o be_v great_a folly_n for_o to_o oppose_v that_o which_o we_o call_v difficult_a unto_o a_o omnipotent_a power_n who_o stretch_v out_o the_o heaven_n like_o a_o curtain_n and_o spread_v they_o out_o as_o a_o tent_n to_o dwell_v in_o isaiah_n 40._o ve_fw-la 22._o he_o stretch_v out_o the_o north_n over_o the_o empty_a and_o hang_v the_o earth_n upon_o nothing_o etc._n etc._n job_n 26._o ver_n 7._o and_o that_o which_o we_o call_v nature_n it_o be_v nothing_o else_o but_o god_n ordinance_n there_o can_v be_v nothing_o contrary_a but_o all_o thing_n agreeable_a unto_o nature_n which_o god_n have_v ordain_v but_o god_n have_v ordain_v the_o motion_n of_o the_o sun_n moon_n and_o star_n as_o aforesaid_a and_o the_o unmooveablenesse_n of_o the_o earth_n therefore_o this_o be_v more_o easy_a and_o more_o
chief_a point_n of_o this_o most_o necessary_a skill_n and_o the_o use_n of_o they_o in_o this_o short_a treatise_n not_o meaning_n to_o translate_v doctor_n gilbert_n book_n but_o to_o take_v those_o thing_n out_o of_o it_o which_o i_o shall_v think_v fit_a for_o this_o purpose_n which_o be_v only_o the_o magnetisme_n of_o the_o whole_a earth_n and_o some_o of_o the_o consequent_n thereof_o and_o to_o add_v the_o rest_n of_o my_o own_o industry_n wherein_o i_o may_v be_v bold_a after_o asort_v to_o challenge_v a_o right_n as_o have_v endeavour_v to_o get_v some_o insight_n in_o this_o argument_n a_o matter_n well_o know_v to_o diverse_a above_o the_o space_n of_o twenty_o year_n ere_o doctor_n gilbert_n book_n see_v light_a and_o in_o very_a deed_n i_o communicate_v many_o of_o my_o observation_n with_o he_o above_o one_o whole_a year_n before_o he_o put_v it_o out_o in_o print_n to_o be_v short_a of_o all_o that_o i_o shall_v set_v down_o in_o this_o treatise_n my_o request_n be_v that_o the_o reader_n will_v admit_v nothing_o but_o that_o which_o shall_v be_v confirm_v by_o good_a reason_n or_o undoubted_a experiment_n and_o i_o purpose_v god_n will_v to_o tie_v myself_o as_o strict_o unto_o this_o rule_n as_o ever_o any_o man_n do_v that_o have_v write_v of_o the_o like_a argument_n make_v it_o even_o a_o matter_n of_o conscienae_fw-la to_o deliver_v any_o thing_n herein_o for_o certainty_n that_o myself_o shall_v not_o know_v to_o be_v sound_a and_o so_o by_o this_o mean_n shall_v i_o neither_o abuse_v the_o reader_n with_o any_o untrue_a assertion_n nor_o injury_n so_o certain_a and_o so_o excellent_a a_o knowledge_n with_o any_o doubtful_a or_o unapproveable_a conclusion_n content_n of_o this_o treatise_n chap._n i._o of_o the_o magnetical_a power_n of_o the_o whole_a globe_n of_o the_o earth_n chap._n ii_o of_o the_o ambiguity_n of_o the_o north_n and_o sooth_n end_v of_o magnet_n and_o magnetical_a body_n explain_v and_o doctor_n gilbert_n therein_o defend_v chap._n iii_o certain_a general_a observation_n of_o the_o nature_n and_o property_n of_o the_o loadstone_n chap._n four_o by_o what_o mean_v the_o chief_a point_n of_o any_o magnet_n of_o what_o form_n soever_o may_v easy_o be_v find_v out_o chap._n v._o the_o manner_n of_o cap_v both_o with_o single_a and_o double_a cap_n and_o the_o nature_n of_o they_o chap._n vi_o of_o cement_n and_o peice_v of_o lodestone_n chap._n vii_o of_o the_o variation_n of_o the_o magnetical_a needle_n with_o the_o appurtenance_n thereto_o belong_v chap._n viii_o a_o discovery_n of_o error_n commit_v in_o the_o make_n and_o touch_v magnetical_a needs_o and_o wiar_z of_o sail_v compass_n with_o a_o advice_n for_o the_o true_a and_o right_o make_v and_o touch_v of_o they_o chap._n ix_o of_o the_o touch_n with_o a_o loadstone_n cap_a and_o without_o the_o cap_n chap._n x._o of_o the_o fashion_v of_o the_o compass_n needle_n chap._n xi_o a_o sail_a compass_n fit_v for_o observe_v at_o sea_n the_o variation_n amplitude_n of_o either_o sun_n or_o star_n cape_n or_o trending_n etc._n etc._n chap._n xii_o a_o comparison_n of_o the_o several_a use_n of_o the_o horizontall_a and_o inclinatory_a magnetical_a needle_n a_o true_a copy_n of_o one_o of_o d._n gilbert_n letter_n write_v to_o the_o author_n concern_v his_o magnetical_a experiment_n magnetical_a advertisement_n chap._n i._o of_o the_o magnetical_a power_n and_o force_v of_o the_o whole_a globe_n of_o the_o earth_n concern_v the_o magnetical_a force_n of_o the_o whole_a body_n of_o the_o earth_n i_o have_v select_v these_o experiment_n to_o prove_v it_o take_v any_o piece_n of_o solid_a earth_n that_o have_v some_o toughness_n to_o hold_v together_o and_o will_v abide_v the_o fire_n as_o any_o sort_n of_o clay_n or_o brick_n which_o sometime_o be_v clay_n fashion_v it_o in_o such_o manner_n that_o it_o be_v uniform_o extend_v towards_o both_o end_n the_o ouall_n or_o long_a figure_n be_v fit_a for_o our_o purpose_n put_v it_o into_o a_o fire_n of_o charcole_n increase_v the_o heat_n by_o little_a and_o little_a and_o at_o the_o length_n with_o often_o blow_v make_v it_o thorough_o as_o red_a hot_a as_o you_o can_v let_v it_o remain_v so_o for_o the_o space_n of_o half_a a_o hour_n or_o more_o that_o thereby_o all_o superfluous_a moisture_n may_v be_v consume_v and_o adverse_a quality_n separate_v from_o it_o then_o take_v it_o forth_o and_o let_v it_o cool_v of_o itself_o be_v first_o set_v north_n and_o south_n with_o either_o end_n answerable_a to_o the_o variation_n of_o the_o place_n not_o parallel_n unto_o the_o horizon_n but_o elevate_v answerable_a to_o the_o latitude_n as_o never_o as_o you_o can_v certain_a it_o be_v that_o this_o piece_n of_o earth_n thus_o order_v will_v sensible_o show_v you_o that_o it_o have_v true_a magnetical_a virtue_n but_o here_o before_o i_o proceed_v any_o far_o i_o must_v deliver_v unto_o you_o a_o necessary_a observation_n there_o be_v two_o kind_n of_o attraction_n as_o they_o be_v common_o call_v the_o one_o magnetical_a the_o other_o electricall_a the_o magnetical_a have_v always_o special_a respect_n unto_o the_o north_n &_o south_n point_v of_o the_o magnete_n or_o magnetical_a body_n the_o electricall_a body_n have_v no_o manner_n of_o respect_n unto_o any_o one_o point_n of_o the_o electricall_a body_n more_o than_o another_o and_o by_o this_o difference_n these_o two_o kind_n of_o attraction_n be_v easy_o discern_v as_o also_o by_o this_o look_v what_o end_n of_o the_o magnetical_a needle_n the_o one_o end_n of_o the_o magnet_n do_v draw_v the_o other_o will_v chase_v away_o but_o the_o electricall_a body_n draw_v alike_o at_o all_o end_n and_o three_o after_o this_o sort_n lap_n this_o electricall_a body_n in_o a_o paper_n and_o it_o will_v draw_v nothing_o at_o all_o but_o interposition_n of_o brass_n or_o of_o a_o stone_n wall_n within_o the_o orb_n of_o the_o magnet_n virtue_n do_v nothing_o weaken_v the_o same_o or_o hinder_v his_o effect_n towards_o his_o peculiar_a object_n notwithstanding_o to_o speak_v proper_o attraction_n pertain_v only_o to_o electricall_a body_n because_o the_o whole_a attractive_a virtue_n be_v only_o in_o the_o electricall_a body_n itself_o and_o nothing_o at_o all_o in_o the_o thing_n that_o be_v attract_v the_o attraction_n common_o so_o call_v of_o the_o loadstone_n be_v right_o to_o be_v term_v concursion_n confluence_n or_o coition_n because_o it_o be_v the_o run_v or_o vigorous_a meeting_n together_o of_o two_o magnetical_a body_n have_v a_o mutual_a inclination_n the_o one_o to_o join_v with_o the_o other_o or_o by_o any_o other_o name_n bear_v like_o sense_n for_o the_o true_a knowledge_n thereof_o be_v but_o late_o as_o a_o stranger_n arrive_v among_o we_o common_a use_n quempenes_n arbitrium_fw-la est_fw-la &_o ius_fw-la &_o normal_a loquendi_fw-la have_v as_o yet_o scant_o suit_v it_o with_o a_o convenient_a name_n to_o express_v this_o property_n so_o that_o magnetical_a concursion_n be_v never_o but_o between_o two_o body_n such_o as_o both_o of_o they_o be_v magnetical_a as_o of_o one_o loadstone_n with_o another_o or_o of_o a_o loadstone_n with_o iron_n or_o steel_n or_o iron_n oar_n if_o it_o be_v prepare_v or_o between_o two_o piece_n of_o iron_n or_o steel_n that_o be_v reviue_v with_o a_o loadstone_n for_o indeed_o the_o loadstone_n can_v but_o revive_v and_o multiply_v magnetical_a force_n in_o a_o body_n that_o natural_o have_v it_o in_o some_o measure_n before_o but_o can_v infuse_v it_o into_o any_o thing_n that_o before_o be_v utter_o void_a of_o it_o as_o of_o metal_n in_o iron_n or_o steel_n and_o not_o in_o gold_n silver_n brass_n etc._n etc._n electrum_n in_o this_o argument_n be_v name_v that_o which_o be_v either_o amber_n in_o substance_n or_o at_o the_o least_o of_o the_o quality_n and_o that_o amber_n be_v rub_v have_v to_o take_v up_o moat_n feather_n straw_n stick_n and_o other_o small_a thing_n the_o which_o property_n be_v also_o in_o ieate_n brimstome_n hard_a wax_n if_o it_o be_v smooth_a and_o in_o infinite_a other_o thing_n both_o natural_a and_o compound_v all_o which_o because_o of_o that_o quality_n in_o this_o argument_n be_v term_v electricall_a body_n and_o their_o take_n up_o of_o thing_n be_v call_v electricall_a attraction_n have_v only_o a_o slender_a resemblance_n and_o no_o truth_n of_o the_o magnetical_a quality_n but_o that_o abovementioned_n piece_n of_o earth_n prepare_v in_o such_o sort_n as_o be_v before_o prescribe_v will_v by_o magnetical_a concursion_n show_v itself_o to_o be_v a_o true_a magnetical_a body_n for_o the_o one_o end_n of_o the_o magnetical_a needle_n will_v covet_v towards_o the_o one_o of_o the_o prepare_a masle_n and_o fly_v from_o the_o other_o and_o contrariwise_o also_o though_o it_o will_v do_v both_o but_o weak_o not_o with_o power_n comparable_a to_o a_o natural_a loadstone_n
and_o find_v diverse_a good_a secret_n i_o pray_v proceed_v with_o double_a cap_v your_o loadstone_n you_o speak_v of_o i_o shall_v be_v glad_a to_o see_v you_o as_o you_o write_v as_o any_o man_n i_o will_v have_v any_o leisure_n if_o it_o be_v a_o month_n to_o confer_v with_o you_o you_o have_v show_v i_o more_o and_o bring_v more_o light_a than_o any_o man_n have_v do_v sir_n i_o will_v commend_v you_o to_o my_o l._n of_o effingham_n there_o be_v here_o a_o wise_a learned_a man_n a_o secretary_n of_o venice_n he_o come_v send_v by_o that_o state_n and_o be_v honourable_o receive_v by_o her_o majesty_n he_o bring_v i_o a_o lattin_a letter_n from_o a_o gentleman_n of_o venice_n that_o be_v very_o well_o learned_a who_o name_n be_v johannes_n franciscus_n sagredus_fw-la he_o be_v a_o great_a magnetical_a man_n and_o write_v that_o he_o have_v conser_v with_o diverse_a learned_a man_n of_o venice_n and_o with_o the_o reader_n of_o padua_n and_o report_v wonderful_a like_n of_o my_o book_n you_o shall_v have_v a_o copy_n of_o he_o letter_n sir_n i_o purpose_v to_o adjoine_v a_o appeudix_n of_o tx_fw-la or_o eight_o sheet_n of_o paper_n tu_o my_o book_n after_o a_o while_o i_o be_o in_o hand_n with_o it_o of_o some_o new_a invention_n and_o i_o will_v have_v some_o of_o your_o experiment_n in_o your_o name_n and_o invention_n put_v into_o it_o if_o you_o please_v that_o you_o may_v be_v know_v for_o a_o augmenter_n of_o that_o act_n so_o for_o this_o time_n in_o haste_n i_o take_v my_o leave_n the_o xiiijth_z of_o february_n your_o very_a love_a friend_n w._n cilbert_n fault_n escape_v in_o the_o preface_n speak_v of_o claudianus_n serediticall_a for_o sideriticall_a fol._n 12._o lin_v 22._o reciprocate_v for_o riciprocal_o fol._n 50._o lin_v 21._o hang_n for_o hugeness_n fol._n 53._o lin_v 16._o as_o may_v be_v for_o as_o many_o be_v fol._n 57_o lin_v 10._o but_o this_o be_v not_o for_o this_o be_v not_o fol._n 68_o lin_v 19_o suppose_v the_o fly_n for_o support_v the_o fly_n fol_n 79._o lin_v 11._o set_v the_o same_o for_o set_v the_o sun_n item_n lin_v 27._o the_o difference_n be_v then_o for_o the_o difference_n be_v ten_o fol._n 82._o lin_v 8._o high_a for_o hevier_n fol._n 84._o lin_v 26._o three_o in_o diameter_n for_o three_o inch_n in_o diameter_n fol._n 85._o lin_v 10._o little_n circle_n for_o little_a circle_n the_o last_o line_n save_o one_o of_o d._n gilbert_n letter_n act_n for_o art_n a_o brief_a discovery_n of_o the_o idle_a animadversion_n of_o mark_n ridley_n doctor_n in_o physic_n upon_o a_o treatise_n entitle_v magnetical_a advertisement_n moveat_fw-la cornicula_fw-la risum_fw-la furtivis_fw-la nudata_fw-la coloribus_fw-la london_n print_v by_o edward_n griffin_n for_o timothy_n barlow_n at_o the_o sign_n of_o time_n in_o paul_n churchyard_n 1618._o to_o the_o right_n noble_a and_o worthy_a mind_a industrious_a gentleman_n and_o other_o who_o be_v any_o way_n addict_v unto_o magnetical_a knowledge_n so_o it_o be_v that_o for_o a_o long_a time_n i_o have_v be_v great_o delight_v in_o the_o contemplation_n of_o the_o property_n and_o virtue_n of_o this_o admirable_a creature_n of_o god_n which_o we_o call_v the_o magnet_n or_o loadstone_n and_o as_o my_o leisure_n and_o occasion_n have_v serve_v by_o conference_n from_o time_n to_o time_n with_o the_o skilful_a navigator_n of_o our_o age_n by_o read_v all_o the_o treatise_n as_o come_v unto_o my_o knowledge_n of_o such_o as_o have_v write_v thereof_o and_o therewithal_o try_v by_o practice_v the_o truth_n of_o those_o thing_n which_o i_o doubt_v of_o and_o last_o find_v some_o thing_n by_o my_o own_o experience_n of_o good_a importance_n by_o other_o not_o at_o all_o mention_v the_o chief_a of_o these_o which_o i_o judge_v profitable_a for_o common_a use_n i_o do_v set_v forth_o in_o a_o small_a treatise_n entitle_v magnetical_a advertisement_n and_o although_o of_o my_o own_o love_a affection_n towards_o such_o as_o you_o be_v i_o have_v be_v always_o ready_a to_o further_o you_o in_o these_o knowledge_n the_o best_a i_o can_v yet_o i_o do_v assure_v you_o faithful_o that_o diverse_a of_o good_a judgement_n learning_n and_o eminent_a place_n unto_o who_o i_o communicate_v my_o experiment_n very_o vehement_o urge_v my_o publish_n of_o they_o a_o copy_n of_o this_o treatise_n be_v by_o stealth_n write_v out_o of_o my_o manuscript_n by_o one_o that_o understand_v it_o not_o and_o by_o that_o mean_v commit_v diverse_a error_n this_o doctor_n ridley_n devour_v some_o of_o they_o and_o by_o his_o endeavour_v to_o square_v my_o proposition_n according_a to_o his_o own_o conceit_n and_o so_o supercilious_o to_o control_v and_o censure_v the_o thing_n which_o he_o understand_v not_o he_o have_v miss_v of_o the_o truth_n very_o far_o and_o wide_a and_o have_v herein_o wrong_v both_o himself_o and_o i_o and_o his_o reader_n but_o most_o of_o all_o his_o believer_n and_o yet_o such_o be_v his_o kind_a disposition_n that_o he_o have_v purloin_v out_o of_o the_o scamble_v copy_n of_o my_o treatise_n for_o to_o adorn_v his_o own_o treatise_n of_o magnetical_a body_n and_o motion_n all_o these_o that_o follow_v as_o in_o his_o treatise_n fol._n 7._o the_o hilly_a knob_n and_o angulous_a part_n etc._n etc._n for_o 17_o line_n fol._n 8._o the_o great_a stone_n &c._n &c._n 5_o line_n fol._n 9_o steel_n and_o iron_n etc._n etc._n 4_o line_n fol._n 10._o the_o 14._o 17._o 18._o 19_o figure_n be_v i_o fol._n 18._o 19_o the_o 1._o 2._o 3._o 7._o way_n be_v i_o the_o 4._o doctor_n gilbert_n fol._n 22._o every_o part_n and_o piece_n of_o a_o loadstone_n etc._n etc._n 7_o line_n fol._n 27._o if_o a_o wire_n be_v touch_v etc._n etc._n 5_o line_n fol._n 30._o &_o 31._o it_o be_v to_o be_v observe_v in_o the_o fashion_n of_o a_o magnet_n etc._n etc._n 16_o line_n fol._n 36._o for_o although_o that_o natural_o &c._n &c._n 9_o line_n fol._n 51._o &_o 52._o also_o if_o a_o magnet_n be_v fasten_v etc._n etc._n 4_o line_n this_o practice_n be_v profitable_a for_o traveller_n etc._n etc._n 14_o line_n more_o fol._n 63._o 64._o the_o best_a way_n to_o touch_v etc._n etc._n 11_o line_n and_o some_o have_v think_v it_o better_a etc._n etc._n 14_o line_n fol._n 66._o set_a two_o lodestone_n etc._n etc._n 3_o line_n fol._n 71._o a_o adamant_n do_v loose_a much_o of_o his_o virtue_n etc._n etc._n 3_o line_n fol._n 72._o that_o 20._o chapter_n only_o a_o few_o word_n chap_v and_o change_v be_v whole_a i_o fol._n 83._o and_o for_o this_o cause_n the_o adamant_n etc._n etc._n 3_o line_n fol._n 89._o a_o piece_n of_o steel_n well_o temper_v etc._n etc._n 2_o line_n the_o two_o next_o be_v his_o own_o and_o very_o absurd_a fol._n 90._o now_o it_o be_v to_o be_v observe_v etc._n etc._n 10_o line_n fol._n 95._o the_o needle_n and_o compass_n etc._n etc._n 14._o line_n so_o that_o it_o can_v but_o seem_v to_o any_o indifferent_a person_n very_o strange_a that_o doctor_n ridley_n will_v public_o so_o traduce_v i_o and_o that_o by_o name_n 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inclinatory_a needle_n with_o the_o one_o end_n heavy_a than_o the_o other_o and_o some_o other_o but_o these_o two_o especial_o for_o because_o they_o do_v draw_v on_o many_o other_o as_o they_o do_v both_o in_o his_o book_n and_o wheresoever_o they_o shall_v be_v admit_v they_o will_v increase_v like_o a_o snowball_n wax_v still_o great_a as_o they_o go_v and_o all_o his_o daub_v of_o they_o with_o his_o untempered_a mortar_n in_o his_o silly_a animadversion_n do_v amend_v the_o matter_n nothing_o at_o all_o but_o make_v it_o far_o worse_o than_o before_o for_o the_o common_a good_a i_o may_v not_o let_v they_o pass_v unreproved_a and_o yet_o i_o will_v not_o public_o name_v he_o but_o use_v this_o word_n somebody_o the_o like_o himself_o have_v viz._n some_o say_v some_o