Chemical Composition of Bones -- Arrangement of Factory -- Properties of Glue -- Glutin and Chondrin -- Skin Glue -- Liming of Skins -- Washing -- Boiling of Skins -- Clarification of Glue Liquors -- Glue-Boiling and Clarifying-House -- Specification of a Glue -- Size -- Uses and Preparation and Composition of Size -- Concentrated Size -- Properties of Gelatine -- Preparation of Skin Gelatine -- Drying -- Bone Gelatine -- Selecting Bones -- Crushing -- Dissolving -- Bleaching -- Boiling -- Properties of Glutin and Chondrin -- Testing of Glues and Gelatines -- The Uses of Glue, Gelatine and Size in Various Trades -- Soluble and Liquid Glues -- Steam and Waterproof Glues -- #Manures# -- Importation of Food Stuffs -- Soils -- Germination -- Plant Life -- #Natural Manures# -- Water and Nitrogen in Farmyard Manure -- Full Analysis of Farmyard Manure -- Action on Crops -- Water-Closet System -- Sewage Manure -- Green Manures -- #Artificial Manures# -- #Mineral Manures# -- Nitrogenous Matters -- Shoddy -- Hoofs and Horns -- Leather Waste -- Dried Meat -- Dried Blood -- Superphosphates -- Composition -- Manufacture -- Common Raw Bones -- Degreased Bones -- Crude Fat -- Refined Fat -- Degelatinised Bones -- Animal Charcoal -- Bone Superphosphates -- Guanos -- Dried Animal Products -- Potash Compounds -- Sulphate of Ammonia -- Extraction in Vacuo -- French and British Gelatines compared -- Index. CHEMICALS, WASTE PRODUCTS AND AGRICULTURAL CHEMISTRY. (p. c09) REISSUE OF #CHEMICAL ESSAYS OF C. W. SCHEELE#. First Published in English in 1786. Translated from the Academy of Sciences at Stockholm, with Additions. 300 pp. Demy 8vo, Price 5s. net. (Post free, 5s. 6d. home; 5s. 9d. abroad.) #Contents.# Memoir: C. W. Scheele and his work (written for this edition by J. G. McIntosh) -- On Fluor Mineral and its Acid -- On Fluor Mineral -- Chemical Investigation of Fluor Acid, with a View to the Earth which it Yields, by Mr. Wiegler -- Additional Information Concerning Fluor Minerals -- On Manganese, Magnesium, or Magnesia Vitrariorum -- On Arsenic and its Acid -- Remarks upon Salts of Benzoin--On Silex, Clay and Alum -- Analysis of the Calculus Vesical -- Method of Preparing Mercurius Dulcis Via Humida -- Cheaper and more Convenient Method of Preparing Pulvis Algarothi -- Experiments upon Molybdaena -- Experiments on Plumbago -- Method of Preparing a New Green Colour -- Of the Decomposition of Neutral Salts by Unslaked Lime and Iron -- On the Quantity of Pure Air which is Daily Present in our Atmosphere -- On Milk and its Acid -- On the Acid of Saccharum Lactis -- On the Constituent Parts of Lapis Ponderosus or Tungsten -- Experiments and Observations on Ether -- Index.