INDEX. 



603 



Gilbert (continued.) 



Compared by Bacon to Xeno- 

 phanes, 328; comparison of the 

 poles, 277; conception of gravity, 

 437; condemns mag. fallacies, 

 281; continued as court physician 

 by James I., 315; copied by Van 

 Helmout, 373; correlation of elec. 

 with other motions, 309; correla- 

 tion of gravity and magnetism, 

 293; cosmical philosophy, 269; 

 cosmical system, 294; cosmical 

 theory accepted by Kepler, 354; 

 cosmical theory compared with 

 Newton's, 435, 438; criticised by 

 Bacon, 321-322-327; death and 

 burial place, 315; declares earth 

 a magnet, 276; De Magnete, his 

 treatise, 260; De Magnete rec'd 

 in Italy, 343; De Mundo Novo, 

 his treatise, 260, 316, 318; dis- 

 coveries recapitulated, 312-313. 



Education of, 259; elec. effect 

 of atmospheric conditions noted, 

 305; elec. and mag. motions com- 

 pared, 311; electroscope, 303; em- 

 bellishments in De Magnete, 268; 

 errors as to variation, 273; fail- 

 ures in observation, 312; field of 

 force discussed, 272, 291; form 

 and matter theory, 276; free phil- 

 osophizing of, 310; generation of 

 lodestone, 287; inductive method 

 of, prior to Bacon, 330; influence 

 of Aristotle on, 282; insulation, 

 308-310; list of electrics, 299; list 

 of non-electrics, 305. 



Magnetic discoveries of, 288; 

 magnetic repulsion, 285; mag- 

 netic theory of, 276; disputed by 

 Boyle, 417; Matter and Form, 

 284; Meteorologia of, 329; methods 

 of thought of, 266; ''nature'' dis- 

 cussed, 285; nature of electric, 

 307; negative conclusions regard- 

 ing elec'y, 306; nomenclature, 

 301; orb of virtue, 272; compared 

 with obs'ns of Porta and Pere- 

 grinus, 351; Owen's epigram on, 

 341; predecessors referred to, 287; 

 portraits and works, 260; post- 

 humous volume, 316, 318; pro- 

 posed addition to De Magnete, 

 316; referred to by Bacon, 318; 

 residence and society, 263; rela- 

 tions to Queen Elizabeth, 262, 

 264; relations to Sarpi, 344. 



Scaliger's criticism, 341; ter- 



rella of, 277; terrestrial attraction 

 of moon, 292; theory of elec. at^ 

 traction, 308; theories, cosmical, 

 269, 294; theories compared with 

 those of Peregrinus, 278; con- 

 demned by Kircher, 366. 



Gioja, Flavio, 187. 



Glanvil, encyclopaedia of, 160; tele- 

 graphic predictions, 387. 



Gnomes of Middle Ages, 25. 



Goddard, Jonathan, 404. 



Goose, Kircher's genesis of solan, 



365- 

 Gordon, Andrew, elec. inventions, 



506 et seq. 

 Gottland, 134. 

 Gralath, Daniel, exp'ts on Leyden 



jar and elec. measuring inst's, 



522 et seq. 

 Grandamicus, mag. theory of earth, 



405- 



Graunt, John, refused admission to 

 R. Society, 409. 



Gravity, and magnetism, Gilbert 

 on, 293 ; Newton co-ordinates 

 elec'y and mag'n with, 442. 



Gray, Stephen, 470; and Dufay, 486; 

 Dufay's tribute to, 487; his friends, 

 Godfrey and Wheler, 473; exp'ts 

 on brush discharge, 486; on charge 

 resident on surface, 476; on con- 

 duction, 474; on elec. induction, 

 477; on glass tube, 472; on hair, 

 etc., 471; on similarity of elec. 

 discharge to thunder and light- 

 ning, 486; planetary theory and 

 death, 487. 



Greeks, amber in literature of, 16; 

 amber trade of, 16; compass at- 

 tributed to, 54; emigration to 

 Egypt, 30; iron working of, 23; 

 nature worship of, 31. 



Greene, Robert, literary references 

 to mag'n and elec'y, 369. 



Grote, on philosophy of Aristotle, 

 39; of Thales, 37. 



Grummert, utilization of elec. light, 

 5c8. 



Guericke, Otto von, 388; and Gil- 

 bert compared, 393; believes earth 

 to be animate, 393; discovers dis- 

 charging effect of points, 398; 

 elec. conduction, ,"99; elec. light, 

 402; sound due to electrification, 

 402; elec. repulsion obs'd by, 397; 

 elec. terrella of, 395; forgotten in 

 i8th cent'y, 491; hypothesis of 

 virtues, 392 ; invents air-pump, 



