Chloride--From Fermented Urine, Process of the Lesage Company, Kuentz's Process; From Gas Liquor, English Process, Kuentz's Process; From the Dry Distillation of Animal Matter; From Ammonium Sulphate, Sublimation; 3. Ammonium Phosphates; 4. Carbonates of Ammonium--Sesquicarbonate from Animal Matter, English Process. Uses. VI., =Recovery of Ammonia from the Ammonia-Soda Mother Liquors=: Sections 1. General Considerations; 2. Apparatus of Schloesing and Rolland; 3. Apparatus of the Societe Anonyme de l'Est.--=Index.= * * * * * =THE MANUFACTURE OF VARNISHES, OIL REFINING AND BOILING, AND KINDRED INDUSTRIES.= Describing the Manufacture of Spirit Varnishes and Oil Varnishes; Raw Materials: Resins, Solvents and Colouring Principles; Drying Oils: their Properties, Applications and Preparation by both Hot and Cold Processes; Manufacture, Employment and Testing of Different Varnishes. Translated from the French of ACH. LIVACHE, Ingenieur Civil des Mines. Greatly Extended and Adapted to English Practice, with numerous Original Recipes. By JOHN GEDDES MCINTOSH, Lecturer on Oils, Colours and Varnishes, Regent Street Polytechnic. Twenty-seven Illustrations. 400 pp. Demy 8vo. 1899. Price 12s. 6d.; India and Colonies, 13s. 6d.; Other Countries, 15s.; strictly net. =Contents.= I. Resins: Gum Resins, Oleo Resins and Balsams, Commercial Varieties, Source, Collection, Characteristics, Chemical Properties, Physical Properties, Hardness, Adulterations. Appropriate Solvents, Special Treatment, Special Use.--II. Solvents: Natural, Artificial, Manufacture, Storage, Special Use.--III. Colouring: Principles, (1) Vegetable, (2) Coal Tar, (3) Coloured Resinates, (4) Coloured Oleates and Linoleates.--Gum Running: Furnaces, Bridges, Flues, Chimney Shafts, Melting Pots, Condensers, Boiling or Mixing Pans, Copper Vessels, Iron Vessels (Cast), Iron Vessels (Wrought), Iron Vessels (Silvered), Iron Vessels (Enamelled), Steam Superheated Plant, Hot-air Plant.--Spirit Varnish Manufacture: Cold Solution Plant, Mechanical Agitators, Hot Solution Plant, Jacketted Pans, Mechanical Agitators, Clarification and Filtration, Bleaching Plant, Storage Plant.--Manufacture, Characteristics and Uses of the Spirit Varnishes yielded by: Amber, Copal, Dammar, Shellac, Mastic, Sandarac, Rosin, Asphalt, India Rubber, Gutta Percha, Collodion, Celluloid, Resinates, Oleates.--Manufacture of Varnish Stains.--Manufacture of Lacquers.--Manufacture of Spirit Enamels.--Analysis of Spirit Varnishes.--Physical and Chemical Constants of Resins. --Table of Solubility of Resins in different Menstrua.--Systematic qualitative Analysis of Resins, Hirschop's tables.--Drying Oils: Oil Crushing Plant, Oil Extraction Plant, Individual Oils, Special Treatment of Linseed Oil, Poppyseed Oil, Walnut Oil, Hempseed Oil, Llamantia Oil, Japanese Wood Oil, Gurjun Balsam, Climatic Influence on Seed and Oil.--Oil Refining: Processes, Thenard's,