INDEX. 



6S9 



Born, ir. 111. 



Boscovich, 1. 457,461, 480, 



615, 751, 756. II. 126, 



280, 281, 288, 294,316, 



336, 346, 362. B. 1711. 



D. 1787. 

 Bossi, II. 448. 

 Bossut, 1. 363, II. 118, 130, 



219, 227, 229, 233, 338, 



377. 

 Bostock, II. 519. 

 Botany, I. 750. II. 511. 

 Bottom of a cistern, I. 



PI. 19. 

 Bottom of the sea, II. 496. 

 Bottom winds, II. 458. 

 Bouguer, I. 358, 366, 437, 



478, 480, 483, 531, 697, 



II. 239, 340, 280, 300, 



344, 362, 363, 367, 370. 



B. 1698. D. 1758. 

 Boulanger, II. 415. 

 Boulard, II. 233. 

 Boulton, I. 133, 245, 338, 



349, II. 259. 

 Bourde de Villchuet,II.239. 

 Bourdelot, II. 525. 

 Bourguet, II. 495. 

 Bournon. Count de Bour- 



non, II. 674, 676. 

 Bourrit, II. 450, 451. 

 Bovillus, II. 558. 

 Bow, I. 226. 

 Bows, II. 208, 218. 

 Bowstrings, II. 186. 

 Bowycr, II. 217. 

 Box, II. 86, 509. 

 Boyle, I. 7, 355, 356, 366, 



475, 483, 749, 756. PI. 



19. II. 112, 317, 660. B. 



1627. D. 1691. 

 Boyle's lamp, II. 245. 

 Bnzc, II. 415. 

 Braccio, II. 153 . . 155. 

 Braces, I. 169. PI. 13. 

 Bracliistochronous curves, 



II. 133. 

 VOL, II. 



Braftenridgo, II. 118. 

 Bradley, I. 436, 477, 478, 



483, 506, 519, 524, 602. 



604, II. 300, 329, 371) 



393, 512. B. 1622. D. 



1762. 

 Brahe. See Tyclio. 

 Brahmins, II. 376. 

 Eraidwood, II. 278. 

 Bramah, I. 222, 33.5. 

 Bramah's press, I. 263, 332, 



PI. 23. 

 Brander, II. 159. 

 Brandes, II. 500. 

 Brass, I. 694. II. 86, 438, 



509. 

 Brasso, II. 154. 

 Brass work, II. 206. 

 Braun, II. 394, 496. 

 Brazilian stone, 11. 583. 

 Breaking clods, II. 216. 

 Breaking ice, 11. 216. 

 Breast pump, II. 250. 

 Breast wheel, I. 322. PI. 



22. 

 Breathing, II. 253. 

 Brehm, II. 128. 

 Brcuiisches magazln, II. 



109. 

 Brereton, I. 714. 

 Brewster, II. 201. 

 Brice, II. 366. 

 Bricks, II. 174, 218. 

 Bricks of Babylon, II. 



158. 

 Bridge, I. 162. PI. 11. 

 Bridge of Mantes, II. 177. 

 Bridge of Ncuilly, II. 176. 

 Bridge of Orleans, II. 176. 

 Bridge of ropes, II. 178. 

 Bridges, I. PI. 14. 11.175, 



234. 

 Bridges of boats, IT. 242. 

 Bridgwater. Duke of Bridg- 

 water, I. 205,207.P1. 17. 

 Briefe uebcr die elcctrici- 



taet, II. 416. 



4 



Briggs,!. 248, 253.B. 1561. 



D. 1631. 

 Briggs's logarithms, II. 8. 

 Brightness of stars, II. 326. 

 Brighton, II, 481, 497. 

 Brillat, II. 148. 

 Brine, II. 388. 

 Brisson, II. 128, 129, 503. 

 Bristol channel, II. 459. 

 Britain, II. 365. 

 British magazinSj 11. 123. 

 British manufactures,1.244. 

 Brittle bottles, II. 403. 

 Brittlencss, I. 142. 

 Broad wheels, II. 201. 

 Brocken, II. 319. 

 Bronzing, II. 157. 

 Brook, II. 417. 

 Brookes, II. 160,360. 

 Broom, II. 184. 

 Brossos, n. 275. 

 Brougham, II. 296,625. 

 Browallius, II. 496. 

 Bruchhauscn, II. 127. 

 Bruehl, II. 192, 350. 

 Bruenings, II. 225. 

 Brugman, II. 437, 514. 

 Brugna1el!i,II.110,267,293. 

 Brunau, I. 356. 

 Brushes, II. 142, 189. 

 Brussels, II. 109, 269. 

 Buat. Chevalier du Buat. 



I. 292, 294, 317, 318, 



361, 365, 366, II. 222, 



225, 245. 

 Bubble, I. 621. II. 316. 

 Bubbles, II. 226, 655. 

 Buchanan, I. 131. U. 166. 

 Bucket revolving, I. 261. 

 Bnckets, II. 180, 2.36, 248. 

 Buckets on a rope, II. 200. 

 Bucket wheel, I. 327. 

 Buckles, II. 189. 

 Bueclmcr, II. 107. 

 Buerja, II. 134, 219, 279. 

 Buesch, II. 129, 173, 301, 



446. 



T 



Buesching, II. 366. 



Buettner, II. 495. 



BuBFon, I. 473, 637, 750, 



II. 324, ,338, 503, 631. B 



1707. D. 1788. 

 Buffon's mirror, II. 282. 

 Bugge, II. 371. 

 Building in water, 11. 23?. 

 Buildings, II. 174. 

 Bulfinger, II. 126. 

 Bull, I. 497. 

 Bullet, II. 136. 

 Bullet piercing a board, IT. 



206. 

 Bulletin de la socidte philo- 



raatique, [I. 111. , 

 Bullets, I. 351. 

 BuUialdus, II. 330. 

 Buoyancy, I. 267. 

 Buoyancy of cork, II. 244 

 Buoyancy of the air, 11. 



159. 

 Buoyant machine, IT. 196 

 ■ 237. 



Burdach, II. 264. 

 Burg, I. 602. 

 Burnet, II. 405. 

 Burnoy, II. 280. 

 Burning glasses, I. 423, 472 



II. 284,406. 

 Burning island, II. 493. 

 Burning mirror, I. 478. II. 



282, 406. 

 Burning rocks, I. 235. 

 Burning wire, II. 430. 

 Burnisher, I. ll'O. 

 Burrani pooler, II. 367. 

 Burroughs'smachine,lI.281 

 Burrow, II. 118. 

 Burrows, I. 7iT. 

 Bushel, n. 151,155. 

 Busse, II. 117, 547. 

 Butschanz, II. 481. 

 Button moulds, II. 189. 

 Buttons, II. 378. 

 Buttress vibrating, IT. 270. 

 Byron, II. 143. 



