The Groups of the Artificial Colouring Matters--The Nature and Manipulation of Artificial Colours--Lake-forming Bodies for Acid Colours--Lake-forming Bodies' Basic Colours--Lake Bases--The Principles of Lake Formation--Red Lakes--Orange, Yellow, Green, Blue, Violet and Black Lakes--The Production of Insoluble Azo Colours in the Form of Pigments--The General Properties of Lakes Produced from Artificial Colours--Washing, Filtering and Finishing--Matching and Testing Lake Pigments--Index. =RECIPES FOR THE COLOUR, PAINT, VARNISH, OIL, SOAP AND DRYSALTERY TRADES.= Compiled by AN ANALYTICAL CHEMIST. 350 pp. 1902. Demy 8vo. Price 7s. 6d.; India and British Colonies, 8s.; Other Countries, 8s. 6d.; strictly net. Contents. Pigments or Colours for Paints, Lithographic and Letterpress Printing Inks, etc.--Mixed Paints and Preparations for Paint-making, Painting, Lime-washing, Paperhanging, etc.--Varnishes for Coach-builders, Cabinetmakers, Wood-workers, Metal-workers, Photographers, etc.--Soaps for Toilet, Cleansing, Polishing, etc.--Perfumes--Lubricating Greases, Oils, etc.--Cements, Pastes, Glues and Other Adhesive Preparations-- Writing, Marking, Endorsing and Other Inks--Sealing-wax and Office Requisites--Preparations for the Laundry, Kitchen, Stable and General Household Uses--Disinfectant Preparations--Miscellaneous Preparations --Index. =OIL COLOURS AND PRINTING INKS.= By LOUIS EDGAR ANDÉS. Translated from the German. 215 pp. Crown 8vo. 56 Illustrations. 1903. Price 5s.; India and British Colonies, 5s. 6d.; Other Countries, 6s.; strictly Net. Contents. Linseed Oil--Poppy Oil--Mechanical Purification of Linseed Oil-- Chemical Purification of Linseed Oil--Bleaching Linseed Oil--Oxidizing Agents for Boiling Linseed Oil--Theory of Oil Boiling--Manufacture of Boiled Oil--Adulterations of Boiled Oil--Chinese Drying Oil and Other Specialities--Pigments for House and Artistic Painting and Inks-- Pigment for Printers' Black Inks--Substitutes for Lampblack--Machinery for Colour Grinding and Rubbing--Machines for mixing Pigments with the Vehicle--Paint Mills--Manufacture of House Oil Paints--Ship Paints-- Luminous Paint--Artists' Colours--Printers' Inks:--VEHICLES--Printers' Inks:--PIGMENTS and MANUFACTURE--Index. (_See also Writing Inks, p. 11._) =SIMPLE METHODS FOR TESTING PAINTERS' MATERIALS.= By A. C. WRIGHT, M.A. (Oxon.), B.Sc. (Lond.). Crown 8vo. 160 pp. 1903. Price 5s.; India and British Colonies, 5s. 6d.; Other Countries, 6s.; strictly Net. Contents.