692 



INDEX. 



Chords, II. 26r. 



Chords of a circle, I. 43, 



PI. 9. II. 33. 

 Choroid, II. .530. 

 Choroid coat.I. 448. II. 82. 

 Choroid of fishes, II. 000. 



606. 

 Christ, II. 474, 497. 

 Christian era, I. 539. 

 Christian!, II. 147, 160, 



1C2. 

 Chromatic aberration, I. 



482. II. 80. 

 Cliromatic corrections, II. 



286, 288. 

 Cliromatic scale, I. 393. 

 Chrouhyometer, II. 476. 

 Clironology,I.538. 11.349, 



376. 

 Chronology of acustics, I. 



407. 

 Chronology of astronomers, 



I. 604. 

 Chronology of authors on 



hydrodynamics, I. 3C6. 

 Clironology of mathema- 

 ticians and mechanics, I. 



S53. 

 Chronology of optical au- 

 , thors,T. 483. 

 Chronology of physical au- 

 thors. I. 756. 

 Chronometers, II. 96, 365. 

 Chronometer with a barrel, 



I. 190, PI. 15. 

 Churchman, I. PI. 41. II. 



442. 

 Churcol, II. 380. 

 Churns, II. 216. 

 Chyle, I. 739. 

 Cicero, I. 596. '' 



Cider mill, II. 214. 

 C<ider press, II. 204. 

 Cieling, I. 148. 

 Cielings, II. 176. 

 Ciliary processes, II. 82, 



530, 599, 605. 



Ciliary zone, II. 524. 

 Cimabue, I. 246, 253. B. 



1240, D. 1300. 

 Cimento. Academicians del 



Ciraento, I. 374, 638. 



Academy del Cimento, 



II. lor. 



Circle, II. 9, 121, 124. Grar 



duated circle, I. 105. 

 Circle in parspective,I.P1.8. 

 Circle revolving, II. 53. 

 Circles, I. 101, PI. 6. 11. 



15, 16, 118. 

 Circles with halos, II. 304. 

 Circular instrumeuts, II. 



350, 352. 

 Circular pendulum, I. 197. 



II. 35, 133, 216. 

 Circular slider, I. IH. 7. 

 Circulating decimals, II. 



115. 

 Circulation, II. 518. 

 Circulation of fluids, 11.405. 

 Circulation of the blood, I. 



291, 743, 

 Circumference of a circle, 



II. 17, 121. 

 Circumpolar ice, II. 343. 

 Cisalpiuiis, I. 748. 

 Ciscar, II. 128, 239. 

 Cisterns, I. 313.11.233,245. 

 Clairaut, I. 250, 253, 480, 



483, 513, 514, 522, 569, 



621. See corrections,754. 



II. 324,338,339,840, 341. 



359, 363, 557, 659, 661, 



669, 670. B. 1712. D. 



1765. 

 Clairaut's circle, I. 107. 

 Clarinet, I. 402. II. 567. 

 Clapp, IT. 500. 

 Clare, IF. 222. 

 Clark, II. 117, 130, 157. 

 Clarke, 1. 250, 253. 11.115, 



116, 231, 940, 519. B. 



1675. D. 1729. 



Classes of animals, I. 733. 

 Classes of plants, I. 730, 



731. 

 Clavelin, II. 412. 

 Clavering, II. 412. 

 Clavichord,!. 398. 11.275. 

 Clavicylinder, II. 275. 

 Clauberg, II. 124. 

 Clay, II. 308. 

 Cleaning cloths, II. 188. 

 Cleaning prints, II. 142. 

 Clearing canals, 11. 224. 

 Clearing harbours, II. 197. 

 Clearing roads, II. 204. 

 Clepsydras, I. 188, 353. II. 



196, 217, 245. 

 Clerk, II. 143, 593. 

 Climate, II. 450. 

 Climate ofAmcrica, II. 450. 

 Climates, I. 571, 696. II. 



Corrections. 

 Climbing up a steeple, II. 



199. 

 Clock, II. 217, 359. 

 Cloekmakers, II. 218. 

 Clocks, I. 189,246. 11.191, 



217. 

 Clods, II. 216. 

 Cloth, I. 186. n. 187. 

 Clothes, II. 189. 

 Clouds, II. 474. 

 C. L. ueber electrJcitaet,[I. 



416. 

 Cluster, I. 492. 

 Coach, I. PI. 18. n. 201. 

 Coaches, II. 218. 

 Coach springs, I. 148. II. 



168, 203. 

 Coal, 11. 410,412. 

 Coal borings, II. 4#5. 

 Coalescence of sounds, II. 



544. 

 Coal mines, II. 211, 212, 



259. 

 Coals, T. 124. n. 151, 167, 



202, 318. 



Coat, II. 189. 



Coats of the eye, 11. 311. 



Cobalt, I. 686. 



Cochcouking, I. 595, 604. 



Cochlea, I. 387. 



Cod rish, II. 606. 



Coexistence of vibrations, 



II. 139. 

 Coffee, II. 403. 

 CoflFee mill, 11.214. 

 Cogs, II. 183. 

 Cohesion, I. 616, 618, 655, 



PI. 39. 11.174,380,509, 



656. 

 Cohesion of fluids, I. 754. 



II. 228, 649. 

 Cohesion of liquids, I. 620. 

 Cohesion of mercury, I. 



622. 

 Cohciion of mercury and 



glass, I. 626. 

 Cohe-jon of solids, I. 626. 

 Cohesion of water, I. 622, 

 Cohesion of wet plates, I. 



625. 

 Cohesive strength, II. 49, 



169. 

 Coiuing, 1.224. 11. 206,217. 

 Coke, II. 4U. 

 Cold, I. 631, 638, 647. II. 



383, 396, 450, 452, 518. 

 Cold. Artificial cold, II. 



410. 



Coldjiis affecting the needle, 

 II. 440. 



Coldcn, II. 377. 



Cold water, II. 394. 



Cold winds, II. 458. 



Cole, I. 335. 



Colebrook Dale, II. 494i. 



Collecting heat by glasses, 

 II. 405. 



Collections, II. 105. 



Collections of single au- 

 thors, 11. 111. 



Collector, I. PI. 40, 



