Metal pickling 152 OTHER INDUSTRIES 153 Treatment of stone and earths; lime burning, glass 153 Treatment of animal products 154 Preparation of vegetable foodstuffs 154 Poisonous woods 154 Textile industry 156 Part II.—Pathology and treatment of industrial poisoning INDUSTRIAL POISONS IN GENERAL 157 Channels of absorption, classification, susceptibility, immunity 158 Fate of poisons in the body—absorption, cumulative action, excretion 162 General remarks on treatment 163 INDUSTRIAL POISONS IN PARTICULAR 169 Group: mineral acids, halogens, inorganic halogen compounds, alkalis 169 Hydrochloric acid 170 Hydrofluoric and silico-fluoric acids 171 Sulphur dioxide and sulphuric acid 171 Nitrous fumes, nitric acid 172 Chlorine, bromine, iodine 173 Chlorides of phosphorus, sulphur and zinc 174 Ammonia 175 Alkalis 176 Group: Metals and metal-compounds 176 Lead and its compounds 177 Zinc and its alloys 182 Mercury and its compounds 183 Manganese and its compounds 184 Chromium and its compounds 185 Nickel salts (nickel carbonyl) 186 Copper 188 Silver and its compounds 188 Group: Arsenic, Phosphorus 189 Arsenic and its oxides 189 Phosphorus 190 Phosphoretted hydrogen 191 Group: Sulphuretted hydrogen, carbon bisulphide, and cyanogen (nerve poisons) 192