Calendar: 1878-1879 Page 160

158 APPLIED SCIENCES Organic Matter in Waters how to decide upon the character of Water-supply Purification of Water Distillation Nitrogen -Its functions in the Atmosphere Determination of the proportions of Nitrogen and Oxygen in Air Carbon -Diamond and Graphite or Plumbago-their uses Lamp Black Charcoal Distillation of Wood Animal Char- coal or Bone-black-its use in Sugar-refining Coal and its varieties-their applications for Heating and Lighting Carbonic Acid Respiration Fermentation Accidents from Carbonic Acid in Wells &c Testing state of Air in Dwelling-rooms Ventilation Soda-water Importance of Carbonic Acid in Agriculture Salts of Carbonic Acid Pearl- ash Alkali Lime-stones White Lead &c Carbonic Oxide Its value in Metallurgic operations Roasting of Copper-ores Manufacture of Gas free from Sul- phur Preparation of Carbonic Oxide Oxalic Acid Hydrocarbons -Manufacture of Coal-gas Relative values of its constituents Chemical valuation of Gas Explosions in Coalmines Safety-lamps Illuminating Flames Gas- burners Petroleums and Paraffine Oils Use of the Blow- pipe Ammonia -Valuation of Nitrogenized Manures Formation of Saltpetre Nitric Acid Distillation of Aquafortis Uses of Nitric Acid in assaying and analysis of metallic alloys Preparation of Gun Cotton Fulminate of Mercury Nitroglycerine Nitrobenzole Picric Acid Nitrates Gunpowder Chlorine -Extraction from Salt Bleaching Disinfecting Action of Chlorine on Metals and on organic substances Chloroform Chloral Chloride of Lime Hydrochloric Acid -Manufacture of Alkali Chlorate of Potash -Detonating Fuzes Use of Chlorates in Fireworks Aqua Regia -Mode of Dissolving and Testing Gold Bromine -Iodine -Iodide of Potassium Iodine-scarlet Fluorine -Fluor Spar Etching on Glass