Chapters I., Chemical Composition of Bones--Arrangement of Factory--Crushing of Bones --Treatment with Benzene--Benzene in Crude Fat--Analyses of Clarified Fats--Mechanical Cleansing of Bones--Animal Charcoal--Tar and Ammoniacal Liquor, Char and Gases, from good quality Bones--Method of Retorting the Bones--Analyses of Chars--"Spent" Chars--Cooling of Tar and Ammoniacal Vapours--Value of Nitrogen for Cyanide of Potash--Bone Oil--Marrow Bones--Composition of Marrow Fat--Premier Juice--Buttons.--II., Properties of Glue--Glutin and Chondrin--Skin Glue--Liming of Skins--Washing--Boiling of Skins--Clarification of Glue Liquors--Acid Steeping of Bones--Water System of Boiling Bones--Steam Method of Treating Bones--Nitrogen in the Treated Bones--Glue-Boiling and Clarifying-House--Plan showing Arrangement of Clarifying Vats--Plan showing Position of Evaporators--Description of Evaporators--Sulphurous Acid Generator--Clarification of Liquors--Section of Drying-House--Specification of a Glue--Size--Uses and Preparation and Composition of Size--Concentrated Size.--III., Properties of Gelatine--Preparation of Skin Gelatine --Washing--Bleaching--Boiling--Clarification--Evaporation--Drying--Bone Gelatine--Selecting Bones--Crushing--Dissolving--Bleaching--Boiling--Properties of Glutin and Chondrin --Testing of Glues and Gelatines.--IV., The Uses of Glue, Gelatine and Size in Various Trades--Soluble and Liquid Glues--Steam and Waterproof Glues.--V., Manures--Importation of Food Stuffs--Soils--Germination--Plant Life.--VI., Natural Manures--Water and Nitrogen in Farmyard Manure--Full Analysis of Farmyard Manure--Action on Crops--Water-Closet. System--Sewage Manure--Green Manures.--VII., Artificial Manures--Bones--Boiled and Steamed Bones--Mineral Phosphates--English Coprolites--French and Spanish Phosphorites--German and Belgian Phosphates--Basic Slag--Guanos Proper--Guano Phosphates.--VIII., Mineral Manures--Common Salt--Potash Salts--Calcareous Manures--Prepared Nitrogenous Manures--Ammoniacal Compounds--Sodium Nitrate--Potassium Nitrate--Organic Nitrogenous Matters--Shoddy--Hoofs and Horns--Leather Waste--Dried Meat--Dried Blood--Superphosphates--Composition--Manufacture--Section of Manure-Shed--First and Ground Floor Plans of Manure-Shed--Quality of Acid Used--Mixings--Special Manures--Potato Manure--Dissolved Bones--Dissolved Bone Compound--Enriched Peruvian Guano--Special Manure for Garden Stuffs, etc.--Special Manure for Grass Lands--Special Tobacco Manures--Sugar-Cane Manure--Compounding of Manures--Valuation of Manures.--IX., Analyses of Raw and Finished Products--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--Description of a Vacuum Pan--French and British Gelatines compared.--Index. =Press Opinion.=