Vlll CONTENTS. 



Page. 



Chemical equivalents, 164 



Appendix to Attraction, 172 



Rules of Philosophizing, - 173 



Apparatus and Operations, - 174 



Specific gravity, method of ascertaining, - 177 



Pneumatic Cisterns, - 181 



Gazometers, - 183 



PART II. PONDERABLE BODIES. 



Sec. I. OXYGEN, 



Action on Combustibles, - 187 



Relation to animal life, 190 



Sec. II. NITROGEN OR AZOTE, - r - 193 



Atmosphere, - 195 



Sec. III. HYDROGEN, - 201 



Properties, &c. 202 



Water synthesis, - - 207 



" analysis, 209 



" its properties, - 211 



Deutoxide of Hydrogen, 215 



Eudiometry by Hydrogen, - 217 



" " spongy Platinum, 221 



Hare's Oxy-Hydrogen Blowpipe, - - 224 



ALKALIES. 



Preliminary Remarks and Statement, - 228 



Sec. I. AMMONIA, - - 230 



Composition, - 233 



Sec. II. POTASSA, - - 238 



Properties, 240 



Uses, &c. - 



Potassium, - . 



Decomposition of Potassa and Soda, - 244 



Properties of Potassium, 247 



Sec. III. SODA, - 251 



Sodium, 253 



Sec. IV. LITHIA, - - 257 



EARTHS. Introductory Remarks, 259 



EARTHS. 



I. LIME, ... - 261 



Calcium, 264 



II. BARYTA, - - 267 



Barium, 268 



HI. STRONTIA, 270 



Strontium, .... 271 



