6io 



INDEX. 



Spark, electric, discovered, 431, 494. 



Sparkling phenomena of human 

 body and apparel, 503, 504. 



Speaking trumpet, inv'n of, 430. 



Spence, Dr., elec. exp'ts of, 538. 



Spider, Franklin's elec., 545. 



Spindle, ancient use of amber as, 18. 



Spontaneous combustion, 503. 



Sprat, T. , on learning in Elizabethan 

 age, 334; on Royal Society exp'ts, 

 412. 



St. Aldhelm on magnet, 115. 



St. Amand, discoveries of, 192. 



St. Ambrose on attraction, 90; mag. 

 mountains, 98. 



St. Augustine on mag. attraction, 

 87; on mag. suspension, 45; dis- 

 tinguishes between mag. and elec. 

 effects, 89. 



St. Brandaen, journey of, 99. 



St. Elmo's fire, 567. 



St. Gregory Nazianzenus on attrac- 

 tion, 90. 



St. Gregory Nyssenus on magnet, 90. 



St. Isidore, Etymologies of, 91; on 

 magnet, 91; on mag. suspension, 



45- 

 St. Jerome on attraction of magnet 



and amber, 90. 

 St. Paul's, Bacon's exp't at, 324; 



Gray proposes exp't at, 474. 

 St. Thomas Aquinas on Form, 283; 



on lightning protection, 592; on 



magnetic attraction, 281. 

 Statue, suspended by magnetism, 



45- 



Steam engine, inv'n of, by Hero, 44. 



Stone of Heraclea, 27. 



Stones, Theophrastus' hist'y of, 39. 



Strada, Prolusiones of, 383. 



Stubbe attacks R. Society, 41 V 



Stukely, Dr., notices Franklin's 

 theories, 583. 



Sun, name of amber derived from 

 that of, 1 6. 



Suspension, magnetic, 45. 



Swift, Dean, parodies Boyle, 424. 



Sympathy and Antipathy, 124. 



Syrian women, observe amber at- 

 traction, 17. 



T. 



Taisnier, John, Gilbert on, 280; on 

 mag. rocks, 101; plagiarisms of, 



n, 192 ' 

 Tartars, 59. 



Tchoii dynasty in China, 68. 

 Telegraph, beginnings of, 239, 400; 



Browne's exp'ts on, 386; mag. de- 

 scribed by Strada, 383; by Addi- 

 son, Akenside, Cabaeus, Galileo, 

 Hakewill, 384, 385; disputed by 

 de Boodt, 383; predictions of, by 

 Bealand Glanvil, 387; Schwenter's 

 compass, 382. 



Temple, alleged lightning protec- 

 tion of, 564. 



Terrella, Gilbert's lodestone, 277; 

 Guericke's elec., 395 ; sent to 

 Pepys, 407. 



Tertullian on magnet, 90. 



Thales of Miletus, 32; contrasted 

 with Hero, 44; Grote on phil'y of, 

 37; L,aertiuson, 34; Theophrastus 

 differs from, 41. 



Theamedes, 5 i. 



Theodoritus on magnet, 90. 



Theophrastus, 38 et seq. 



Thermometer, elec., 515. 



Thevenot, 378. 



Timaeus of Locri, 37; Plato's, 35, 36. 



Timochares. 44. 



Tourmaline, 41. 



Torpedo, shock of, noted by Bacon, 

 401. 



Tubal Cain, 29. 



Turanian family, 61. 



Typhon, iron called bone of, 28. 



u. 



Ugric family, 61. 

 Umbrians, 59. 



University of Alexandria, 44. 

 Universities, English in time of 

 James I., 333. 



V. 



Vacuum, amber attraction due to, 

 50; Hauksbee's light in, 460. 



Van Drebbel, see Drebbel. 



Van Helmont, see Helmont. 



Van Musschenbroack, see Mus- 

 schenbrceck. 



Variation of compass, 196; alleged 

 record of, by Andrea Blanco, 197; 

 Burrowes, Bond, Gellibrand and 

 Gunter on, 446; discovered by 

 Chinese, 76; discovered by Colum- 

 bus, 200; Gilbert's errors as to, 

 273; Halley on, 447; line of no, 

 200; time changes in, obs'd by 

 Sagredo, 367. 



Vasco da Gama, voyages of, 105, 

 205. 



Vault, lodestone, 45. 



