Calendar: 1884-1885 Page 203

AFPLIED SCIENCES 197 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 ד 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 β 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 Metaliurgic operations ί Roasting of Copper-ores Manufacture oi Gas free from Sul- Iphur 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 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