INDEX. 



69» 



CoUinl, II 494. 

 Collins, 11. 124. 

 Collision, I. 75. PI. 5, 11. 



51, 5'2, 136, 140,385. 

 Colorific rays, II. 296. 

 Colour, II. 500. 

 Coloured autlielia, II. 308. 

 Coloured bodies, II. 406. 

 Coloured fringes, I. PI. 



30. 

 Coloured gllsses, II. 314. 

 Coloured rin!;s, II. 316. 

 Coloured slmdows, I. 455, 



PI. 30. II. 314. 

 Colour grinders, II. 214. 

 Colouring, II. 143. 

 Colour mill, II. 215. 

 Colour of the air, II. 320. 

 Colours, I. 457, PI. 29, .SO, 



11.70,214,280,295,312, 



314,318,319, 543,613, 



616, 617,637,642,671. 

 Colours in telescopes, II. 



236. 

 Colours of diffiacttd light, 



I. 464. 

 Colours of double lights, 



IL 316. 

 Colours of fibres, II. 633, 



680. 

 Colours of mirrors, I. PI. 



30. 

 Colours of mixed plates, I. 



470, 11. 635, 680. 

 Colours of natural bodies, 



I. 469. II. 646. 

 Colours of opaque bodies, 



II. 321. 



Colours of the stars, I. 456, 

 490. II. 326. 



Colours of thin plates, I. 

 468,611. 



Colours produced by fric- 

 tion, 11.316. 



Colours round a candle, II. 

 316. 



Columbium, II. 671. 

 VOL. II. 



Column, I. 157, PI. 11, II. 

 46. 



Columnaria, I. 316, II. 

 246. 



Column compressed, ex- 

 tended, and bent, I. PI. 9. 



Column crushed, I. PI. 10. 



Column of mercury, I. 

 626. 



Columns, I. 139, II. 173. 

 Bending of columns, II. 

 452. 



.Combination of undula- 

 tions, II. 624. 



Combination of vibrations, 



I. PI. 25. 

 Combinations, II. 117. 510. 

 Combinations of sounds, I. 



389, II. 553. 

 Combinations of tides, I. 



584. 

 Combined levers, I. PI. 3. 

 Comb pots, II. 185. 

 Combs, II. 210. 

 Combs of looms, II. 187. 

 Combustion, I. 434, 634, 



II. 290, 385, 408. 

 Comets, I. 512, 531, 721, 



PI. 32, 33, II. 337, 341, 



346. 

 Comma scapement, I. 196. 

 Commensurable quantities, 



II. 2. 

 Commentarii Bononiensea, 



II. 108. 

 Comraentat. Gott. II. 103. 

 Commercial magaziije, II. 



111. 

 Comraercium cpi»toliculh, 



II. 124. 

 Comraercium Norimber- 



geuse, II. 108. 

 Committee of the Royal 



Society, II. 390. 

 Common measure, II. 13. 

 Communication of electri- 

 city, II. 421. 



4 



Communication of heat, 



I. 635, II. 404, 465. 

 Communication of motion, 



II. 136. 

 Communications to the 



Board of Agriculture, 



II. 519. 

 Companion of a trochoid, 



II. 558. 

 Comparative anatomy of 



the eye, II. 311. 

 Comparative physiology, II. 



517. 

 Comparative table of phy- 

 sical properties, 11. 509. 

 Comparer of scales, II, 



149. 

 Comparetti, I. 480, II. 271, 



311,317. 

 Comparison of heat and 



electricity, II. 404. 

 Comparison of measurc- 



mentsof degrees, II. 362. 

 Comparison of measures, 



II. 147. 

 Comparison of the English 



and French measures, II. 



149. 

 Comparison of variable 



quantities, K. 119. 

 Compass, I. 689, 743, PI. 



6, II. 414, 489, 519. 

 Ct>mpasses,1.101, II. 144, 



145. 

 Compass for wheelwork, 



II. 183. 

 Compensation balances, I. 



PI. 16, II. 195. 

 Compensations in time- 

 keepers, II. 194. 

 Composite column, I. PI. 



12. 

 Composition, I. 392. 

 Composition of force, I. PJ. 



3, II. 134. 

 Composition of motion, I. 



23, PI. 1, II. 28, 131. 

 U 



Compound agitations, II. 



273. 

 Compound bodies, II. 136. 

 Compound capstan, II. 197. 

 Compound confined nio-> 



tion, II. 139. ,„,f„o.> 

 Compound interest, II. 1 17.- 

 Compound microscopes, II. 



78. 

 Compound pendultjms, II. 



189. 

 Compound rotations, II. 



554. 

 Compound sounds, II, 273.< 

 Compound tides, I. PI. 



38. 

 Compound vibrations,I. PI. 



2, II. 343. 

 Compressibility, 1.370, II, 



378. 

 Compressibility of Hfater, 



II. 64, 372. 

 Compressibility of water 



and mercury, I. 276. 

 Compression, I. 135, 136, 



220, II. 204, 385. 

 Compression of a columnj 



I. PI. 9. 

 Compression of the air, II, 



220,408. '; 



Concave lens. If. 72. 

 Concave mirror, I, 416, 



471, 11.72, 282,406. 

 Concavoconvex lens, I. 



416. 

 Conchoidal epitrochoids, 



II. 561. 

 Concords I. 391. 

 Condamine. , See Lacon- 



damine. 

 Contjensation, I, 619, 632, 



640, II. 385. 

 Condensation of mixtures, 



II. 610. 

 Condensation of the air, I. 



715, 11. 220,408. 

 Condensed air, II. 265, 



