CONTENTS. Xiil 



251. Specific heats of minerals and rocks 229 



252. " (true and mean) of silicates, o to 1400 C 229 



253. of gases and vapors, also cp/c v 230 



LATENT HEATS 



254. Latent heats of vaporization 231 



255. formulae 232 



256. ammonia 232 



257. " Latent heat of pressure variation " of liquid ammonia 232 



258. Latent and total heats of vaporization of elements, theoretical . . 233 



259. Properties of saturated steam 234 



260. Latent heats of fusion 240 



HEATS OF COMBUSTION, FORMATION, ETC. 



261. Heats of combustion of some carbon compounds 241 



262. " " " miscellaneous compounds 241 



263. Heat values and analyses of various fuels: (a) coals and coke .... 242 



(b) peats and woods . . . 242 



(c) liquid fuels 242 



(d) gases 242 



264. Chemical and physical properties of explosives 243 



265. Additional data on explosives " 244 



266. Ignition temperatures of gaseous mixtures 244 



267. Explosive decomposition, ignition temperatures 244 



268. Flame temperatures 244 



269. Thermochemical data: heats of formation from elements 245 



270. " " " " " of ions 246 



271. " " " neutralization 246 



272. " . " dilution of sulphuric acid ..... 246 



RADIATION 



273. Radiation formulae and constants for perfect (black-body) radiator . 247 



274. in calories for perfect radiator, various temperatures . . . 247 



275. distribution in spectrum for various temperatures .... 247 



276. Black-body spectrum intensities, 50 to 20000 K 248 



277. Relative emissive powers of various bodies for total radiation .... 249 



278. Emissivities of metals and oxides 249 



279. " " " " " 249 



280. Temperature scale for tungsten, color, black-body and true tem- 



peratures 250 



281. Color minus brightness temperature for carbon 250 



COOLING BY RADIATION, CONDUCTION, AND CONVECTION 



282. Cooling by radiation and convection: ordinary pressures 251 



283. different pressures 251 



