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it_o bring_v to_o the_o life_n of_o man._n clandian_a a_o famous_a poet_n well_o near_a twelve-hundred_n year_n since_o say_v as_o much_o commendation_n of_o the_o magnet_n when_o as_o yet_o the_o sereditical_a or_o iron_n draw_v property_n be_v only_o know_v lapis_fw-la est_fw-la cognomine_fw-la mâ—gnes_fw-la decolor_fw-la obscurus_fw-la nilis_fw-la etc._n etc._n and_o again_o sed_fw-la novasi_fw-la nigri_fw-la videas_fw-la miracula_fw-la suxi_fw-la tuno_n superat_fw-la pulchros_fw-la cultus_fw-la et_fw-la quicquid_fw-la eâ—iâ—_n indus_n littoribus_fw-la rubra_fw-la scrutatur_fw-la in_o alga_n but_o what_o will_v he_o not_o have_v say_v have_v he_o see_v the_o closet_n indeed_o of_o all_o magnetical_a miracle_n unlock_v and_o in_o so_o glorious_a a_o manner_n set_v wide_o open_a as_o now_o it_o be_v at_o this_o day_n have_v he_o have_v loadstone_n of_o divers_a form_n but_o especial_o round_a one_o also_o such_o versory_a needle_n fit_o frame_v and_o artificial_o place_v upon_o their_o pin_n and_o other_o implement_n as_o be_v prescribe_v wherewith_o be_v furnish_v he_o may_v still_o see_v the_o truth_n of_o they_o in_o thing_n themselves_o for_o these_o skill_n must_v be_v learned_a ex_fw-la rebus_fw-la ipsis_fw-la non_fw-la solum_fw-la ex_fw-la libris_fw-la and_o withal_o there_o be_v several_a figure_n and_o diagram_n which_o can_v be_v understand_v but_o by_o the_o help_n of_o the_o mathematics_n and_o good_a travel_v in_o the_o magnetical_a practice_n to_o be_v short_a of_o all_o that_o i_o have_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 experience_n and_o i_o purpose_v god_n willing_a 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 conscience_n 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_v i_o shall_v neither_o abuse_v the_o reader_n with_o any_o untrue_a assertion_n nor_o injure_v so_o certain_a and_o so_o excellent_a a_o knowledge_n with_o any_o doubtful_a or_o reprovable_a conclusion_n it_o be_v a_o common_a proverb_n that_o in_o stone_n wood_n and_o herb_n consist_v great_a virtue_n which_o say_v be_v doubtless_o most_o manifest_a by_o the_o daily_a experience_n of_o the_o loadstone_n find_v in_o sundry_a part_n of_o india_n some_o will_v have_v it_o to_o be_v find_v in_o spain_n by_o one_o name_v heraeleon_n as_o hicander_n say_v where_o in_o the_o time_n of_o his_o keep_n of_o cattle_n the_o iron_n nail_n of_o his_o shoe_n and_o pike_n of_o his_o staff_n cleave_v fast_o to_o the_o stone_n of_o these_o magnet_n be_v five_o sort_n or_o kind_n as_o soracus_n write_v one_o of_o aetheopiâ—_n another_o of_o macedonia_n a_o three_o in_o echio_n of_o boecia_fw-la the_o four_o 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the_o bye_n
if_o there_o be_v great_a virtue_n in_o stone_n wood_n and_o herb_n it_o have_v also_o be_v prove_v that_o the_o ship_n compact_v with_o iron_n nails_o sail_v by_o the_o sea_n of_o aethiope_n and_o by_o a_o tempest_n drive_v to_o land_n to_o certain_a cape_n or_o land_n end_n have_v by_o these_o stona_n either_o be_v draw_v to_o the_o bottom_n of_o the_o sea_n or_o else_o the_o nail_n be_v draw_v out_o by_o the_o virtue_n of_o the_o stone_n the_o ship_n have_v fall_v in_o a_o thousand_o piece_n and_o therefore_o the_o discreet_a and_o wary_a cantabrian_o expert_a mariner_n sail_v by_o the_o aethiopian_a sea_n frame_v their_o ship_n with_o pin_n and_o hoop_n of_o wood_n to_o prevent_v the_o danger_n that_o may_v chance_v on_o the_o same_o occasion_n this_o stone_n be_v know_v by_o colour_n virtue_n weight_n and_o equality_n the_o best_a colour_n be_v say_v to_o be_v like_o pure_a iron_n shine_v mix_v with_o indian_a or_o heavenly_a colour_n and_o be_v in_o a_o manner_n like_o iron_n 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exact_o appear_v part_n of_o the_o break_a needle_n must_v be_v lay_v upon_o the_o sin_n and_o be_v so_o often_o by_o little_a and_o little_o transpose_v until_o the_o style_n or_o â—in_a be_v perpendicler_n or_o plummet_n do_v direct_o fall_v upon_o the_o stone_n for_o there_o on_o the_o contrary_a part_n by_o like_a manner_n shall_v be_v find_v the_o other_o pole_n a._n shall_v be_v the_o true_a point_n and_o b._n the_o false_a loadstone_n let_v they_o be_v of_o what_o part_n soever_o of_o the_o world_n have_v the_o self_n same_o general_a directive_n property_n i_o mean_v of_o show_v the_o north_n and_o south_n and_o also_o the_o self_n same_o point_n respective_a decline_a or_o dip_v under_o the_o horizon_n they_o do_v likewise_o agree_v in_o their_o variation_n and_o each_o one_o will_v draw_v iron_n and_o likewise_o one_o another_o every_o loadstone_n of_o what_o form_n soever_o it_o be_v have_v either_o actual_o or_o potential_o two_o point_n the_o one_o northern_a the_o other_o 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for_o the_o general_a form_n of_o a_o stone_n be_v good_a every_o concavity_n be_v a_o diminish_n of_o his_o force_n and_o every_o bunch_n be_v a_o superfluous_a burden_n insomuch_o that_o myself_o have_v have_v experience_n of_o a_o stone_n that_o of_o substance_n be_v very_o good_a and_o of_o weight_n be_v three_o and_o twenty_o ounce_n but_o of_o disorder_a form_n it_o therefore_o take_v away_o twelve_o ounce_n from_o he_o and_o yet_o diminish_v not_o one_o jote_n of_o his_o force_n and_o this_o i_o do_v in_o a_o stone_n that_o be_v all_o of_o like_a force_n but_o if_o it_o be_v one_o that_o be_v intermix_v of_o divers_a substance_n as_o many_o such_o there_o be_v and_o those_o easy_o discover_v by_o their_o colour_n you_o may_v sometime_o take_v away_o three_o quarter_n or_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 we_o have_v already_o say_v the_o iron_n colour_n be_v best_a very_o black_a or_o white_a seldom_o prove_v good_a gray_a indifferent_a the_o moâ—â—_n white_a be_v in_o any_o stone_n so_o much_o the_o â—â—rse_n thâ—â—e_o be_v certain_a that_o be_v of_o a_o iron_n colour_n mâ—â—glâ—â—_n 〈…〉_o of_o which_o 〈◊〉_d be_v good_a and_o some_o buâ—_n 〈…〉_o 〈◊〉_d wâ—y_n you_o may_v prove_v whether_o a_o magnet_n be_v goâ—â—â—_n 〈◊〉_d the_o 〈◊〉_d be_v by_o 〈◊〉_d aâ—_n iron_n with_o the_o bare_a stâ—â—e_n that_o other_o by_o give_v more_o or_o less_o virtue_n to_o a_o knife_n on_o any_o thing_n to_o lift_v iron_n the_o three_o be_v if_o it_o will_v with_o good_a strength_n move_v a_o magnetical_a needle_n a_o pretty_a good_a distance_n off_o and_o ready_o alter_v the_o end_n of_o the_o needle_n without_o touch_v they_o make_v the_o north_n south_n and_o the_o south_n north_n the_o two_o latter_a do_v never_o fail_v but_o the_o first_o do_v divers_a time_n and_o very_o certain_a it_o be_v that_o whatsoever_o stone_n do_v most_o stron_o impart_v his_o force_n to_o a_o knife_n or_o move_v a_o needle_n with_o quickness_n the_o power_n and_o lift_v up_o of_o iron_n be_v such_o a_o one_o will_v mighty_o be_v increase_v with_o a_o cap._n for_o this_o be_v general_o the_o nature_n of_o all_o magnet_n that_o if_o there_o be_v two_o of_o different_a quantity_n and_o of_o equal_a strength_n in_o lift_v up_o iron_n the_o great_a will_v give_v the_o strong_a touch_n and_o move_v a_o magnetical_a needle_n far_o off_o although_o the_o lesser_a will_v take_v as_o much_o iron_n or_o something_o more_o than_o the_o great_a and_o again_o suppose_v there_o be_v a_o loadstone_n of_o a_o pound_n weight_n that_o be_v fit_o arm_v will_v take_v up_o four_o pound_n of_o iron_n and_o not_o above_o if_o you_o divide_v he_o into_o very_o small_a piece_n you_o shall_v find_v of_o they_o be_v orderly_o use_v that_o will_v lift_v up_o twenty_o time_n his_o own_o weight_n and_o a_o great_a deal_n more_o if_o they_o be_v very_o small_a as_o of_o three_o or_o four_o grain_n weight_n and_o yet_o where_o the_o great_a one_o will_v give_v a_o touch_n unto_o a_o knife_n for_o to_o take_v up_o four_o ounce_n of_o iron_n and_o will_v move_v a_o magnetical_a needle_n three_o foot_n off_o this_o little_a one_o will_v not_o give_v a_o touch_n to_o a_o knife_n to_o take_v up_o a_o needle_n nor_o move_v a_o magnetical_a needle_n four_o inch_n off_o that_o as_o a_o magnet_n be_v diminish_v in_o substance_n i_o mean_v a_o magnet_n of_o a_o regular_a for_o it_o so_o do_v he_o loose_v in_o his_o virtue_n and_o touch_v and_o increase_v in_o his_o small_a 〈◊〉_d for_o lift_v â—p_a iron_n â—hereby_o it_o be_v manifest_a that_o these_o two_o property_n 〈…〉_o joint_o together_o in_o the_o 〈…〉_o â—nd_v here_o hence_o it_o be_v that_o many_o 〈…〉_o ally_n set_v in_o
â—ings_n 〈…〉_o he_o great_a piece_n 〈…〉_o â—he_v great_a one_o who_o parâ—icieâ—â—_n they_o be_v 〈…〉_o great_a one_o shall_v do_v the_o 〈◊〉_d namely_o to_o take_v in_o so_o many_o time_n their_o own_o weight_n also_o very_o often_o it_o be_v see_v that_o magnet_n be_v of_o like_a form_n and_o weight_n but_o of_o divers_a kind_n the_o one_o will_v take_v up_o more_o iron_n of_o himself_o without_o the_o cap_n and_o yet_o the_o other_o give_v a_o far_o strong_a touch_n but_o then_o if_o you_o do_v fit_a both_o of_o they_o accordingly_z with_o cap_n he_o which_o give_v the_o strong_a touch_n will_v take_v up_o more_o iron_n than_o the_o other_o the_o principal_a â—orce_n of_o the_o loadstone_n well_o proportion_v pass_v in_o 〈◊〉_d direct_a line_n from_o the_o middle_n of_o his_o substance_n be_v as_o it_o be_v a_o centre_n through_o his_o two_o end_n or_o point_n which_o be_v the_o imaginary_a like_v of_o his_o chief_a force_n from_o which_o centre_n there_o isse_fw-la infinite_a other_o also_o through_o all_o part_n of_o the_o superficies_n of_o the_o stone_n on_o either_o side_n between_o the_o two_o extreme_a point_n of_o the_o middle_n all_o which_o on_o either_o side_n of_o the_o middle_n be_v of_o one_o nature_n and_o property_n in_o respect_n of_o their_o touch_n be_v exceed_o different_a in_o strength_n for_o that_o still_o wax_v less_o and_o less_o as_o it_o approach_v continual_o near_a and_o near_o the_o middle_n where_o at_o length_n in_o the_o middle_n between_o the_o two_o end_n it_o utter_o faint_v and_o come_v to_o nothing_o the_o loadstone_n communicate_v his_o property_n to_o the_o iron_n or_o steel_n that_o be_v touch_v with_o it_o so_o far_o forth_o as_o the_o iron_n or_o steel_n which_o be_v touch_v have_v the_o ability_n to_o receive_v and_o so_o that_o good_a skill_n in_o the_o touch_n be_v observe_v steel_n be_v far_o better_a than_o iron_n and_o receive_v a_o far_a strongen_fw-mi touch_n and_o much_o more_o effectual_a the_o pure_a steel_n so_o 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ability_n also_o for_o the_o touch_n like_v in_o kind_n though_o not_o of_o equal_a power_n according_a to_o the_o quantity_n and_o proportion_n of_o the_o piece_n and_o the_o part_n of_o the_o stone_n that_o it_o be_v take_v from_o and_o this_o property_n in_o a_o mean_a sort_n have_v touch_v the_o needle_n and_o the_o wyar_n of_o a_o compass_n also_o that_o one_o stone_n may_v draw_v another_o lay_v the_o one_o upon_o a_o board_n or_o box_n in_o the_o water_n that_o it_o may_v free_o float_v and_o hold_v another_o in_o your_o hand_n if_o then_o the_o north_n part_n of_o the_o stone_n which_o you_o hold_v in_o your_o hand_n you_o turn_v towards_o the_o south_n part_n of_o that_o which_o float_v in_o the_o box_n or_o otherwise_o the_o south_n part_n to_o the_o north_n the_o float_a stone_n shall_v turn_v towards_o your_o hand_n and_o if_o contrariwise_o you_o turn_v the_o like_a part_n to_o his_o like_a that_o be_v to_o say_v the_o south_n part_n to_o the_o south_n etc._n etc._n the_o float_a stone_n shall_v fly_v from_o you_o by_o this_o experiment_n certain_a physician_n be_v confute_v who_o dispute_n on_o this_o manner_n if_o scemmonea_n draw_v unto_o it_o choler_n by_o similitude_n or_o likeness_n of_o nature_n ergo_fw-la much_o more_o shall_v one_o magnet_n draw_v another_o rather_o than_o iron_n so_o that_o what_o they_o assume_v false_o we_o have_v now_o teach_v to_o be_v true_a the_o like_a judgement_n be_v of_o the_o long_a slender_a iron_n which_o be_v rub_v with_o the_o stone_n for_o if_o in_o the_o water_n it_o be_v lay_v on_o a_o light_a piece_n of_o wood_n or_o a_o straw_n or_o such_o like_a so_o that_o it_o may_v free_o float_v upon_o the_o water_n the_o one_o end_n of_o it_o shall_v turn_v to_o the_o north_n and_o the_o other_o to_o the_o south_n and_o if_o hold_v the_o stone_n in_o your_o hand_n you_o turn_v his_o north_n point_n to_o the_o south_n extremity_n or_o end_n or_o contrariwise_o the_o stone_n shall_v then_o draw_v iron_n but_o contrary_o if_o you_o turn_v the_o like_a part_n to_o the_o like_a as_o be_v aforesaid_a it_o shall_v fly_v from_o the_o iron_n and_o drive_v it_o away_o impossible_a impossible_a natural_a the_o reason_n be_v that_o the_o agent_n do_v not_o only_o endeavour_v to_o make_v the_o patient_a like_o itself_o but_o also_o in_o such_o a_o manner_n to_o unite_v it_o with_o himself_o that_o of_o they_o two_o be_v make_v one_o as_o may_v appear_v by_o this_o reason_n take_v the_o same_o magnes_fw-la a_o d._n of_o which_o a._n signify_v the_o north_n point_n and_o d._n the_o south_n divide_v the_o stone_n into_o two_o part_n a_o b._n and_o c._n d_o put_z a_o b._n to_o the_o water_n as_o be_v say_v and_o by_o this_o mean_v you_o shall_v see_v a._n turn_n to_o the_o north_n and_o b._n to_o the_o south_n for_o the_o break_n or_o divide_v of_o the_o stone_n as_o we_o say_v diminish_v not_o the_o virtue_n thereof_o so_o that_o it_o be_v homogenie_n that_o be_v all_o part_n alike_o take_v therefore_o a_o b._n for_o the_o patient_a and_o c_o d._n for_o the_o agent_n then_o whereas_o the_o agent_n in_o the_o best_a manner_n it_o may_v work_v to_o conserve_v the_o order_n of_o nature_n â—t_a be_v manifest_v that_o d._n can_v draw_v c_z the_o south_n for_o although_o they_o can_v by_o that_o mean_n be_v join_v yet_o shall_v not_o so_o be_v make_v one_o of_o they_o two_o the_o part_n remain_v in_o their_o virtue_n for_o if_o a._n shall_v remain_v north_n then_o d._n shall_v be_v south_n which_o be_v certain_a to_o have_v the_o power_n of_o the_o north._n neither_o contrariwise_o shall_v c._n draw_v a._n for_o both_o be_v northly_a and_o so_o shall_v b._n be_v the_o north_n which_o first_o be_v south_n and_o d._n in_o like_a manner_n for_o so_o shall_v the_o order_n of_o nature_n be_v invert_v it_o remain_v therefore_o that_o a._n shall_v natural_o draw_v d._n and_o b._n shall_v draw_v c._n for_o so_o every_o way_n shall_v remain_v of_o equal_a strength_n some_o ignorant_a man_n be_v of_o opinion_n that_o the_o virtue_n of_o the_o loadstone_n be_v not_o derive_v from_o heaven_n but_o rather_o of_o the_o nature_n of_o the_o place_n where_o it_o be_v engender_v say_v that_o the_o mine_n thereof_o be_v find_v in_o the_o north_n and_o that_o therefore_o ever_o one_o part_n of_o the_o stone_n extend_v towards_o the_o north._n but_o they_o sure_o be_v ignorant_a that_o this_o stone_n be_v find_v in_o other_o place_n whereof_o it_o shall_v as_o well_o follow_v that_o it_o shall_v extend_v itself_o to_o other_o and_o divers_a part_n as_o to_o the_o north_n which_o thing_n be_v false_a as_o be_v well_o know_v by_o common_a experience_n for_o it_o ever_o move_v to_o the_o north_n in_o whatsoever_o place_n â—it_n be_v neither_o be_v it_o to_o be_v believe_v that_o the_o northstar_n of_o the_o mariner_n be_v the_o pole_n for_o as_o much_o as_o that_o star_n be_v without_o the_o meridian_n line_n and_o but_o twice_o within_o one_o revolution_n of_o the_o firmament_n but_o whereas_o the_o marvellous_a virtue_n of_o this_o stone_n depend_v of_o heaven_n who_o will_v believe_v that_o only_o two_o point_n thereof_o shall_v so_o turn_v themselves_o and_o that_o rather_o every_o part_n of_o it_o shall_v not_o incline_v to_o some_o like_a part_n in_o heaven_n as_o may_v thus_o be_v prove_v let_v the_o stone_n be_v bring_v into_o a_o spherical_a round_a form_n as_o be_v say_v and_o the_o pole_n be_v find_v let_v it_o be_v turn_v upon_o two_o pin_n or_o turner_n instrument_n and_o there_o be_v pullysh_v until_o it_o be_v on_o every_o part_n of_o equal_a heaviness_n which_o you_o may_v well_o find_v by_o often_o prove_v for_o that_o part_n that_o fall_v down_o be_v heavy_a which_o do_v frame_v in_o
a_o teem_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 and_o the_o other_o anorhe_a 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 it_o be_v for_o any_o thing_n to_o hang_v so_o 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 as_o we_o have_v say_v some_o intermediate_v hoby_a that_o hinder_v it_o from_o come_v to_o the_o stone_n 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 can_v scarce_o be_v see_v or_o perceive_v 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 â—o_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 oral_a 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 charcoal_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 as_o thorough_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 the_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 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 to_o the_o horizon_n but_o elevate_v answerable_a to_o the_o latitude_n as_o near_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_a i_o must_v deliver_v unto_o you_o a_o necessary_a observation_n there_o be_v two_o sort_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 electrical_a the_o magnetical_a have_v always_o a_o special_a respect_n to_o the_o north_n and_o south_n point_v as_o we_o have_v often_o say_v of_o the_o magnet_n or_o magnetical_a body_n the_o electrical_a body_n have_v no_o manner_n of_o respect_n to_o any_o one_o point_n of_o the_o electrical_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_n 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 electrical_a body_n draw_v alike_o at_o all_o end_n and_o three_o after_o this_o manner_n lap_v this_o electrical_a body_n in_o a_o paper_n and_o it_o will_v draw_v nothing_o to_o it_o at_o all_o but_o interposition_n of_o brass_n or_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 appertain_v only_o to_o electrical_a body_n because_o the_o whole_a attractive_a virtue_n be_v only_o in_o the_o electrical_a body_n itself_o and_o nothing_o as_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 with_o the_o other_o or_o by_o any_o other_o name_n bear_v the_o like_a 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 for_o common_a use_n quem_fw-la penes_fw-la arbitrium_fw-la est_fw-la et_fw-la jus_o et_fw-la norma_n 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 conclusion_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 oare_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 thac_fw-la be_v revive_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 and_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 least_o of_o the_o quality_n and_o that_o amber_n be_v â—ubed_v have_v a_o attraction_n to_o take_v up_o moat_n feather_n straw_n and_o other_o small_a thing_n the_o which_o property_n be_v also_o in_o â—eate_v brimstone_n hard-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_a all_o which_o because_o of_o that_o quality_n in_o this_o argument_n be_v term_v electrical_a body_n and_o their_o take_n up_o of_o thing_n be_v call_v electrical_a attraction_n have_v only_o a_o slender_a resemblance_n â—ut_v no_o truth_n of_o the_o magnetical_a quality_n but_o that_o above_o mention_v piece_n of_o earth_n prepare_v in_o such_o a_o manner_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 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to_o draw_v towards_o a_o end_n of_o this_o matter_n albeit_o that_o the_o magnetical_a virtue_n be_v most_o eminent_a in_o the_o magnet_n as_o in_o the_o precise_a and_o perfect_a subject_n thereof_o yet_o it_o be_v the_o self_n same_o quality_n in_o a_o mean_a degree_n evident_o to_o be_v perceive_v in_o every_o piece_n of_o earth_n prepare_v and_o order_v as_o be_v aforesaid_a yea_o although_o it_o be_v not_o cool_v with_o his_o end_n north_n and_o south_n that_o it_o may_v take_v its_o magnetical_a force_n from_o the_o virtue_n of_o the_o earth_n for_o if_o you_o cool_v it_o with_o his_o end_n but_o east_n and_o west_n and_o set_v two_o loadstone_n in_o the_o cool_a the_o one_o at_o one_o end_n and_o the_o other_o at_o the_o other_o end_n it_o will_v receive_v a_o sensible_a and_o apparent_a magnetical_a virtue_n according_a to_o those_o point_n of_o the_o loadstone_n that_o be_v apply_v unto_o it_o namely_o that_o end_n which_o be_v next_o to_o the_o south_n point_n of_o the_o 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the_o compass_n needle_n be_v the_o most_o admirable_a and_o useful_a instrument_n in_o the_o world_n be_v both_o among_o â—urs_n and_o other_o nation_n for_o the_o most_o part_n so_o bunger_o â—nd_v absurd_o contrive_v as_o nothing_o more_o and_o therefore_o as_o i_o have_v treat_v 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 noble_a instrument_n towards_o its_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 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 â—ron_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 its_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 quench_v it_o in_o cold_a water_n sudden_o so_o be_v it_o brick_n in_o a_o manner_n or_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 into_o the_o fire_n you_o anoint_v it_o with_o black_a soap_n it_o will_v scale_v white_a itself_o theâ—_n 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 tongue_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 a_o white_a to_o a_o yellowish_a and_o afterward_o to_o a_o bluish_a colour_n then_o take_v that_o end_n with_o your_o tongue_n and_o do_v the_o like_a to_o the_o other_o thrust_v it_o forward_o 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 it_o cool_v 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 loadstone_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 divers_a man_n be_v of_o divers_a mind_n some_o use_n a_o kind_n of_o a_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 plate_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 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 steel_n his_o end_n be_v wield_v together_o have_v a_o latin_a 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 loop_n and_o there_o rivet_v and_o rivit_v if_o it_o be_v handsome_o shoulered_a in_o by_o the_o workman_n be_v better_a than_o soader_v because_o have_v fit_v the_o latin_a plate_n bear_v the_o capitell_a unto_o the_o loop_n you_o may_v first_o put_v your_o loop_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 spoil_v in_o the_o fire_n and_o the_o wide_a loop_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 because_o 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 end_n of_o a_o wide_a compass_a loop_n be_v long_a than_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 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 south_n very_o curious_o you_o shall_v never_o give_v he_o the_o right_a touch_n yea_o very_a exceed_v hardly_o although_o that_o you_o do_v mark_v they_o and_o also_o the_o latin_a stay_n that_o hold_v the_o capital_a will_v be_v exceed_v long_o and_o a_o superfluous_a burden_n but_o the_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 have_v in_o the_o midst_n a_o convenient_a receptacle_n to_o place_v the_o capital_a fit_o 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 the_o other_o for_o the_o four_o cardinal_n 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 to_o the_o follow_a figure_n 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 without_o any_o fly_n as_o i_o will_v hereafter_o show_v whensoever_o you_o will_v set_v this_o needle_n unto_o the_o fly_n you_o 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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-de-luce_n on_o one_o of_o they_o as_o you_o see_v in_o the_o loop_n revit_v there_o that_o â—in_a turn_n 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 upon_o a_o skrew_n upon_o the_o capital_a wheresoever_o you_o please_v as_o for_o his_o weight_n it_o must_v be_v according_a to_o his_o largeness_n and_o the_o weight_n be_v one_o principal_a cause_n the_o very_a large_a compass_n be_v unprofitable_a for_o the_o weight_n of_o the_o weight_n of_o the_o large_a card_n and_o the_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 paste-board_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_a 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 full_o sufficient_a of_o what_o form_n soever_o the_o capital_a aught_o to_o be_v latin_a and_o hammer-hardned_n 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
move_v the_o load_n one_o jote_n from_o the_o place_n insomuch_o 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 contrarity_n of_o course_n the_o only_a way_n to_o perform_v such_o a_o design_n if_o it_o be_v worth_a â—he_n 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 fit_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 manner_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 to_o the_o uppermost_a part_n of_o the_o image_n a_o small_a piece_n of_o iron_n according_a 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 cape_n of_o the_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 at_o the_o least_o retain_v 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 contignity_n between_o the_o stone_n and_o they_o he_o hold_v iron_n more_o strong_a 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 from_o notable_a fastness_n and_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 than_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 compass_n maker_n that_o make_v the_o wire_n of_o their_o fly_n for_o sail_v 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 twopence_n in_o a_o compass_n and_o scarce_o that_o they_o intolerable_o abuse_v those_o that_o travel_v by_o sea_n to_o their_o great_a danger_n and_o mischief_n to_o cement_v and_o piece_n loadstone_n for_o your_o simmon_n do_v thus_o take_v the_o fine_a powder_n of_o loadstone_n half_o so_o much_o powder_n of_o new-brick_n make_v very_o small_a and_o subtle_a one_o part_n of_o burgundy-pitch_n half_o so_o much_o of_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_n then_o strike_v the_o place_n as_o you_o will_v solder_v over_o with_o the_o simmon_n 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 itself_o and_o not_o to_o be_v sever_v by_o great_a heat_n of_o fire_n in_o piece_v of_o the_o loadstone_n there_o must_v be_v great_a care_n take_v to_o the_o nature_n of_o the_o loadstone_n in_o general_n 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 whereof_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 northly_a nature_n and_o all_o of_o it_o southly_a the_o other_o way_n for_o example_n in_o loadstone_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 world_n for_o this_o cause_n in_o the_o last_o example_n the_o one_o half_a a_o b._n be_v suppose_v to_o swarve_v from_o the_o 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