2<H Index. 



Caloric, the basis of fluidity, i. 6l. 



Caloric, or elementary fire, a simple substance in chemistry, 

 ii. 35 chemical account of, 36 to 38 lecture on its 

 chemical effects, 57 its power of expansion, ib. its 

 distribution, 62 its operation in causing fluidity, 66 

 in the formation of vapour, 74 its power of combus- 

 tion, 83. 



Camera obscura, principle of explained, i. 158. 



Camphor, nature and properties of, ii. 220. 



Caoutchouc, or Indian rubber, nature of, ii. 283. 



Capillary attraction, phenomenon of, i. 11. 16. 19. 



Carbon, or diamond, a simple substance in chemistry, ii. 

 36 chemical account of, 52. 207 to 209. 



Carbonic acid, nature and properties of, ii. 53. l6l, 162. 



Cataract, an affection of the eye, explained, i. 183 ope- 

 ration of couching for, ib. 



Catoptrics. See Reflection. 



Cementation, vessels used in the chemical process of, ii. 

 110, ill. 



Central eclipses, phenomena of explained, ii. 28. 



Centre of gravity, account of the, i. 228. 



Centrifugal force, nature of the, i. 225. 



Ceres, some particulars concerning the newly discovered 

 planet, called, i. 2QO, 2Q1. 304 to 306. 



Chemical analysis, the perfection of chemical science, its 

 nature explained, ii. 101. 



Chemical apparatus. See Apparatus. 



Chemical attraction, phenomenon of, i. 12, 13 further 

 explained, ii. 33 when analogous to that of cohesion, 

 98. 



Chemistry, lecture on the general principles of, ii. 32 

 general illustrations of the effects of heat and mixture, 

 32, 33 plan of the lectures on, 34 list of simple sub- 

 stances, and remarks on each, 35, 36 canons of che- 

 mistry, 38. 44, 45 distinctions of the terminations 

 ous, ite, ic, at, and uret, 43, 168. 232. See also Ani- 

 mal substances, Apparatus, Caloric, Combustible sub- 

 stances, Earths, Metals, Mixture, Salts, Vegetable sub- 

 stances, and Water. 



Chimneys, want of draught in, ii. 118. 



Chlorine, what now called, ii. 54 how obtained, 157 

 properties of, 158. 



Choke damp, what known under the name of, ii, 53. 



Circles, great and secondary, i. 266. 



