Index. 829 



GALVANIC influence iii, 350. 



Gay-Lussac and Thdnard, analysis of wood ii, 465. 



Glaciers of Chamouny, phenomenon observed on. . ii, 251-257. 



Glass, ground, not opaque iv, 108. 



usefulness for windows . iv, 176. 



resistance of, to light iv, 27. 



Glazing of earthenware iii, 340, 345. 



Gold, reduced by charcoal . . iv, 82. 



essential oils iv, 90. 



heat iv, 78. 



light i, 380, 382 ; iv, 80. 



Grates, various ii, 519 ; iii, 35, 129, 462. 



Ground glass, usefulness for windows iv, 176. 



Gunpowder, account of experiments upon i, 1-97. 



attempts to increase force of (with plates) . . i, 92. 

 force of fired ... i, 98-172 (with plates) } ii, 189. 



Lavoisier's theory of i, 109. 



Robins's theory of . . . . i, 108,109. 



manner of inflammation i, 376. 



method of proving i, 67. 



source of heat in combustion of ii, 189. 



specific gravity of i, 91. 



theories of mode of combustion of i, 43. 



HARMONY of colours iv, 63-71. 



Hasty pudding, cost of iv, 454. 



manner of eating iv, 451. 



preparation of iv, 450. 



Heat accompanies chemical change ii, 408. 



acquired by guns upon being fired i, 31-39. 



effect of, on force of powder . . . i, 28. 



action of, in reducing gold iv, 76. 



a mode of motion . i, 490; ii, 104, 114, 124, 170-184, 214. 



combined ii, 497 ; iii, 39. 



capacity of various liquids for ii, 425-434. 



compared to light ii, 109. 



sound ... ii, 104, 114, 124, 179, 214, 222. 



developed in combustion ii, 370-417. 



of alcohol ii, 387. 



charcoal ii, 403. 



