CONTENTS. 



PAGE 



Vigorous combustion by mixing hot liquids : precau- 

 tions, ....... 156 



Separation of liquids from solutions : fatty acids from 



soap, . . .. . . . . 157 



Mercury precipitated from solution, . . . 158 



Preparation of dilute acetic and hydrochloric acids, . 159 



5. CHEMICAL ACTIONS PRODUCING CHANGE OF STATE WITHOUT 



THE EMPLOYMENT OF SOLVENTS, . . . 160-231 



CHAPTER XIII. Chemical Actions of Decomposition or Break- 

 ing up, ...... 160-185 



Burning limestone to quicklime, . . . 161 



Preparation of oxygen, . . . ... 162 



Collection of gases at pneumatic trough. Storage of gases, 164 



Preparation of chlorine : precautions, . . . 169 



Do. cyanogen, .... 170 



Do. nitrogen, . . . . 170 



Air produced by mixing nitrogen and oxygen, . . 171 



Preparation of nitrous oxide (laughing gas), . . 172 

 Decomposition of sugar into carbon dioxide and alcohol : 



fermentation, . . . . . . 173 



Ginger beer and nettle beer, .... 175 



Alcohol from starch, calico, sawdust, &c., . . 176 



Vinegar and acetic acid, . . . . . 179 



Carbon dioxide decomposed by living plants in sunlight, 180 



Action of light on silver compounds : marking ink, . 180 



Silvering hollow glass vessels, .... 181 



Spongy platinum, . . . . . 182 



Coal gas, ....... 182 



Destructive distillation of wood, bones, &c. , . . 183 



Test for nitrogenous organic matter, . . . 184 



CHAPTER XIV. Chemical Actions of Combination, . . 185-211 



Development of heat during chemical combination, . 185 



Combination of sulphur with iron and copper, . . 187 



Combination of gases to form liquid or solid products, . 188 



Water produced by burning hydrogen in air, . . 188 



Hydrogen and air form an explosive mixture, . . 189 



Musical hydrogen flames, .... 190 



Hydrogen flame rendered luminous : albocarbon light, . 191 



Great heat of oxy hydrogen flame : lime light, . . 191 



