INDEX. 



609 



Pyramid, iron in great, 28; orienta- 

 tion of, 57. 



Q- 



Quakers, refuse to defend Phila, 

 546. 



Queen Elizabeth, relations to Gil- 

 bert, 262-4. 



Quelmalz, elec. theory of, 503. 



R. 



Races, peculiarities of, 61. 

 Reaumur, Musschenbrceck's letter 



to, 517. 

 Repulsion, electric, obs'd by Cabaeus, 



351; Guericke on, 397; laws of, 



485; magnetic, 48, 51, 285. 

 Resinous electricity, Dufay on, 484. 

 Resistance, 363. 



Respective point, Norman's, 216. 

 Rhea, 22. 



Rhodes, mag. suspension at, 46. 

 Ridley, Mark, 338. 

 Ridotti, Italian, 342. 

 Rings, Samothracian, see Samothra- 



cian rings. 

 Roberval, 378. 

 Rocks, magnetic, 96. 

 Rolli, on spontaneous combustion, 



503, 504- 



Rose of the winds, 60, 187, 188, 191. 



Rosicrucians, the, 371. 



Royal Academy of Sciences, foun- 

 dation of, 450; reorganized by de 

 Pon char train, 452. 



Royal Society, Berlin, founded by 

 Frederick I., 490. 



Royal Society, English, early exp'ts 

 of, 410; first notice of elec'y, 402. 

 foundation of, 406; influence on 

 newphil'y, 409; insists on original 

 research, 411; its opponents, 413; 

 rejects Franklin's papers, 583; 

 repeats Newton's exp'ts, 445. 



Ruffinus, on magnet, 92; magnetic 

 suspension, 45. 



Runes, Finn, 138. 



Rupert, Prince, inventions of, 406. 



S. 



Sagredo, Gian Francesco, 342-343; 

 observes time changes in varia- 

 tion, 367. 



Samothrace, Cabiri in, 23. 



Samothracian rings, 23, 47, 87. 



Sanconiathon, 56. 



Saracens in Spain, 108. 



39 



Sarpi, Fra Paolo, 224; and Porta, 

 232; writes to Galileo about Gil- 

 bert, 343. 



Saturation, magnetic, 290. 



Sauveur, invents gambling system', 



451- 



Scaliger, on Laertms, 35; on Gil- 

 bert, 341. 



Schilling, J. J., exp'ts of, 491. 



Scholastic philosophy, 118. 



Schott, Gasper, describes Guericke 's 

 air-pump, 414. 



Schwenter, Daniel, compass tele- 

 graph, 382. 



Sellers, produces artificial magnets, 

 446. 



Semites, characteristics of, 61. 



Septuagint, ligure disc'd in, 42. 



Serapis, magnetic suspension in 

 temple of, 45, 92. 



Series, connection of elec. gener- 

 ators in, 557. 



Sewall, Madam, sparkling frock of, 



425- 



S'Gravesande, W. J., 488, 516. 



Shakespeare, William, on nature 

 of lightning, 569; on St. Elmo's 

 fire, 568; references to magnetism, 

 370. 



Shoo King, the, 66. 



Short circuiting, Descartes on, 361. 



Siderites, 25. 



Silk, filament suspension, 312; Gil- 

 bert's use of, for insulation, 308; 

 Gray's use of, for insulation, 475. 



Silver, attraction of, by lodestone, 

 281. 



Similitudes, Neckam on, 123. 



Simpson, Dr., on elec. sparkling, 

 503. 



Sing, Philip, 540-544. 



Siphon recorder, principle of, sug- 

 gested, 499. 



Societies, learned, in France, 378; 

 names of Italian, 232. 



Society, English Scientific in 1660, 

 404; Royal See Royal Society. 



Socrates, philosophy in time of, 37. 



Solomon, voyages of, 55. 



Somers, Lord, 463. 



Sorcery, Finn, 138. 



So-soung on mag. rocks, 98. 



Soul in lodestone, Thales on, 33. 



Sound due to electrification, 402. 



South-pointing carts See Carts, 

 south-pointing. 



Spain, compass in mediaeval, in; 

 in time of Saracens, 107. 



