736 



INDEX. 



Vestibule, I. 387. 

 Vesuvius, I. 718, 719,11. 



493, 494. 

 Viallon, II. 250. 

 Vibrating chord, I. PI. 25. 

 Vibrations, I. 379, PI. 25, 

 II. 132, 377, 653, 554, 

 615. 

 Vibrations from elasticity, 



n. 268. 

 Vibrations making musical 



notes, II. 67. 

 Vibrations of a board, II. 



S26. 

 Vibrations of a choid, II. 



65, 66. 

 Vibrations of a cylinder, II. 



85. 

 Vibrations of an elastic rod, 



II. 84. 

 .Vibrations of chords,I.381. 

 Vibrations of different 



fluids, II. 541. 

 Vibrations of fluids, I. 287, 



II. 266. 

 Vibrations ofheat, 1.6*1. 

 Vibrations of magnets, II. 



442. 

 Vibrations of pendulums, 



II. 572. 

 Vibrations of plates, II. 



268. 

 Vibrations of rods, II. 67, 



266. 

 Vibrations of solids, II. 267. 

 Vibrations of sounding 



bodies, I. 191. 

 Vibrations of sounds, II. 



264. 

 Vibrations of springs, II. 



139. 

 Vibrations of the air, II. 



536. 

 Vices, I. 222, II. 204. 

 Vielle, I. 399, II. 274. 

 Vienna weights, II. 161. 

 Vignettes, II. 158. 



Vilette's mirror, II. 282. 

 Villeliuet, II. 239. 

 Vince, I. 65, 152,481, II, 

 121, 128, 229, 325, 347, 

 •672. 

 Vinci. Da Vinci, I. 247, 

 253,11.142,217,218, B. 

 1445, D. 1520. 

 Viola di gamba, I, 399. 

 Violin, I. 399. 

 Violins, II. 274. 

 Violoncello, I, 399. 

 Viper, I. 735. 

 Virgo, I. 497, II. 504. 

 Virtual focus, I. 414. 

 Virtual image, I. 422, PI. 



97. 

 Virtual velocities, I. 73, 11. 



45, 57, 140. 

 Viscosity,!. 629. 

 Visible interval, II. 575. 

 Vision, I. 447, II. 280, 310, 



523, 574. 

 Vision of infants, II. 312. 

 Vitality, II. 518. 

 Vital principle, II. 518. 

 Vitellio, I. 473, 483. Fl. 



1269. 

 Vitreous electricty, I. 670. 

 Vitreous humour, 1. 448, II. 



82,311,315,530. 

 Vitriolated tartar, II. 



293. 

 Vitruve, II. 141. • 

 Vitruvius, 1. 188, 243, 253, 

 352, 353, 366, PI. 22, II. 

 141. Fl. 15. B. C. 

 Vitruvius Britonnicus, II. 



172. 

 Vivenzio, II. 492. 

 Viviani, II. 122. 

 Vliessingen, II. 109. 

 Voice, I. 400, PI. 26,11. 



275. 

 Voices of animals, II. 279. 

 Voigt, II. 384. 

 Volatilisation, II. 396. 



Volcanic inundations, II, 



494. 

 Volcanos, II. 716, II. 493, 

 Volcanos in the moon, I. 



533, II. 336. 

 Volcanos in the sun, II. 33 1. 

 Vohtion, II. 725. 

 Volney, II. 452. . 

 Volta, I. 674, 677, 678, 

 683, 706, 720, 751 , . 

 753, PI. 40. 

 Voltaire, I. 253,11. 126, B. 



1694, D. 1778. 

 Voluntaries, II. 279. 

 Vortex,II. 221, 226. 

 Vortex of fire, II. 483. 

 Vortices, II. 338," 340, 376, 



377, 379. 

 Vossius, II. 112. 

 Vowels, 1. 400, II. 276, 550. 

 Vox humana pipe, I. 401, 



PI. 26. 

 Vox oculis subjecta, II. 



278. 

 Voyage pour ^prouver les 

 montres de Leroy, II. 

 192. 

 Vulcanian theory, I. 720. 

 Waggon, II. 201, 202. 

 Waggon mill, II. 182. 

 Waggon overturning,T.P1.3. 

 Walking, I. PI. 9. 

 Wain, I. 496. 

 Wail, II. 415. 

 Wales, II. 365,367. 

 Walker, II. 121, 128, 437. 

 Walking,!. 129,11. 164. 

 Walking wheels, I. 208,336, 



11.181,199. 

 Wall, 1. 159. 

 Waller, II. 107. 

 Wallerius, II. 480, 496. 

 Wallingford, I. 189, 246, 



253. Fl. 1326.' 

 Walli5,1.36, 248, 253, 405, 

 407, II. 112, 124, 549, 

 558, B. 1616, D. 1713. 



Wallot, II. 834. 



Walls, II. 173. 



Walter of Coventry, I. 245 

 253. Fl. 1213. 



Ware, II. 592, 593. 



Waring, I. 350, 253, II. 

 113, 114, 122,557,558, 

 681. 



Warlike machines, II. 207. 



Warm baths, II. 518. 



Warming by steam, II. 



410. 

 Warming rooms, II. 411, 



Warping, II. 187. 



Warren, II. 601, 



Washing machine, II. 216. 



Washing mill, II. 213. 



Washing trees, II. 519. 



Waste of light, II. 321. 



Waste water, II. 252. 



Watch, II. 244. 



Watches, I. 251, II. 191, 

 217,218,370. 



Watchman, II. 192. 



Watch'scapements, I.P1.26. 



Watcli springs, II. 207. 



Water, I; 276, 372, 412, 

 619, 622, II. 479, 496, 

 509, 673. Decomposi- 

 tion of water, II. 423. 

 Force of water, II. 236. 



Water bellows, II. 254, 



Watercock, II. 246. 



Water colours, I. 95. 



Water courses, II. 225. 



Water in air, I. 710. 



Watering, II. 249. 



Watering gardens, II. SSI- 

 Water lens, II. 284. 



Water level, II. 353. 



Water mill, I. 133. 



Water mills, II. 167, 236. 



Water pipes, I. 316, PI. 21, 

 II. 245, 480. 



Waterpoise, II. 231. 



Waterproof cloth, XL 188, 

 383. 



