36.5 



physics, 92. Benefits arising 

 from the analysis of, 94. 

 Axioms of, analogous to 

 those of geometry, 95. 

 Many of the new elements 

 of, detected in the investi- 

 gation of residual pheno- 

 mena, 158. The most ge- 

 neral law of, 209. Illus- 

 tration of, 210. Between 

 fifty and sixty elements in, 

 211. Objects of, 296. 

 General heads of the princi- 

 pal improvements in, 3O2. 

 Remarks on those general 

 heads, 304. 



Chemistry, Stahlian, cause of 

 the mistakes and confusions 

 of, 123. 



Chladni, experiments of, in 

 dynamical science, 181. 



Chlorine, disinfectant powers 

 of, 56. 



Clarke, Dr., his experiments 

 on the arseniate and phos- 

 phate of soda, 170. His 

 success in producing a new 

 phosphate of soda, 171. 



Climate, change of, in large 

 tracts of the globe, alleged 

 cause of, 145. 



Coals, power of a bushel of, 

 properly consumed, 59. 

 Quantity consumed in Lon- 

 don, 60. 



Cohesion, an ultimate pheno- 

 menon, 90. 



Cold, qualities of, 318. 



Compass, mariner's, 55. 



Condensation, a source of 

 heat, 313. 



Conduction of heat, laws of, 

 205. 



Copernicus, effect of his dis- 

 coveries on the Aristotelian 

 philosophy, 113. Objec- 



tions to his astronomical 

 doctrines, 269. 

 Crystallography, laws of, 1 23. 

 239. A determinate figure 

 supposed to be common to 

 all the particles of a crystal, 

 242. 



D' Alembert,hisimprovements 

 in hydrodynamics, 236. 



Dalton, his announcement of 

 the atomic theory, 305. His 

 examination of gases and 

 vapours, 319. 



Davy, Sir H., brings the vol- 

 taic pile to bear upon the 

 earths and alkalies, 339. 



Deduction, utility of, 174. 



De PIsle, Rome, his study of 

 crystalline bodies, 239. 



Dew, causes of, investigated, 

 159. Effects of, on differ- 

 ent substances, 160. Ob- 

 jects capable of contracting 

 it, 161. A cloudless sky 

 favourable to its produc- 

 tion, 162. General proxi- 

 mate cause of, 163. 



Drummond, lieutenant, his 

 improvement on lenses for 

 lamps of lighthouses, 56. 



Dynamics, importance of, 96. 

 223. 



Earth, the orbit of, diminu- 

 tion of its eccentricity round 

 the sun, 147. 



Economy, political, 73. 



Egypt, great pyramid of, 

 height, weight, and ground 

 occupied by it, 60. Accu- 

 racy of the astronomical re- 

 cords of, 265. 



Elasticity, an ultimate phono, 

 menon, 90. 



Electricity may be the cause 



