Calendar: 1885-1886 Page 203

APPLIED SCIENCES 199 Natural Forms of Water Rain Spring Saline and Mineral Waters Hard and Soft Waters Sea Water Boiler incrus- tations Formation of Calcareous Deposits in Nature Pro- cesses for softening Waters Action of Water upon Lead 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 Su phur Preparation of Carbonic Oxide Oxalic Acid Hydrocarbons Manufacture of Coal-gas Relative values of its constituents Chemical valuation of Gas Explosions in Coal-mines Safety-lamps Illuminating Flames Gas- burners Petroleums and Paraffin Oils Use of the Blow- pipe Ammonia Valuation of Nitrogenized Manures Formation of Saltpetre Nitric Distillation of Aquafortis Uses of Nitric Acid in assaying aid 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