CHAP. IX. Alkaline and Earthy Chlorides 191 CHAP. X. Lime 192 CHAP. XI. Ammonia and its salts 193 CHAP. XII. Alkaline Sulphurets 196 CHAP. XIII. Arsenic 197 SECTION 1. Tests for its compounds 198 Fly-powder 199 Oxide of Arsenic 200 Tests in its solid state 203 —— a pure solution 206 —— when in organic mixtures 215 Arsenite of Copper 223 —— of Potass 223 Arseniate of Potass 224 Sulphurets of Arsenic 224 Arseniuretted-hydrogen 227 SECTION 2. Action and Symptoms in Man 227 Mode of Action 227 Symptoms in ordinary cases 234 —— very short cases 241 —— tedious cases 244 Effects through other channels besides the Stomach 251 Force of the evidence from Symptoms 259 SECTION 3. Morbid Appearances 262 SECTION 4. Treatment 283 CHAP. XIV. Mercury 289 SECTION 1. Tests for its preparations 289 Red Precipitate 290 Cinnabar 290 Turbith Mineral 290 Calomel 291 Corrosive Sublimate 291 —— Tests in the solid state 292 —— solution 292 —— organic mixtures 296 Bicyanide of Mercury 303 Nitrates of Mercury 303 SECTION 2. Mode of Action and Symptoms 303 Mode of Action 303