Chapters I., =Colour and Its Production.= Light, Colour, Dispersion of White Light Methods of Producing the Spectrum, Glass Prism and Diffraction Grating Spectroscopes, The Spectrum, Wave Motion of Light, Recomposition of White Light, Hue, Luminosity, Purity of Colours, The Polariscope, Phosphorescence, Fluorescence, Interference.--II., =Cause of Colour in Coloured Bodies.= Transmitted Colours, Absorption Spectra of Colouring Matters.--III., =Colour Phenomena and Theories.= Mixing Colours, White Light from Coloured Lights, Effect of Coloured Light on Colours, Complementary Colours, Young-Helmholtz Theory, Brewster Theory, Supplementary Colours, Maxwell's Theory, Colour Photography.--IV., =The Physiology of Light.= Structure of the Eye, Persistence of Vision, Subjective Colour Phenomena, Colour Blindness.--V., =Contrast.= Contrast, Simultaneous Contrast, Successive Contrast, Contrast of Tone. Contrast of Colours, Modification of Colours by Contrast, Colour Contrast in Decorative Design.--VI., =Colour in Decoration and Design.= Colour Harmonies, Colour Equivalents, Illumination and Colour, Colour and Textile Fabrics, Surface Structure and Colour.--VII., =Measurement of Colour.= Colour Patch Method, The Tintometer, Chromometer. =Press Opinions.= "This useful little book possesses considerable merit, and will be of great utility to those for whom it is primarily intended."--_Birmingham Post._ "It will be found to be of direct service to the majority of dyers, calico printers and colour mixers, to whom we confidently recommend it."--_Chemical Trade Journal._ "It is thoroughly practical, and gives in simple language the why and wherefore of the many colour phenomena which perplex the dyer and the colourist."--_Dyer and Calico Printer._ "We have found the book very interesting, and can recommend it to all who wish to master the different aspects of colour theory, with a view to a practical application of the knowledge so gained."--_Chemist and Druggist._ "Mr. Hurst's _Handbook on the Theory of Colour_ will be found extremely useful, not only to the art student, but also to the craftsman, whose business it is to manipulate pigments and dyes."--_Nottingham Daily Guardian._ * * * * * =TEXTILE RAW MATERIALS AND THEIR CONVERSION INTO YARNS.= (The Study of the Raw Materials and the Technology of the Spinning Process.) Text-book for Textile, Trade and Higher Technical Schools. By JULIUS ZIPSER. Translated from German by CHARLES SALTER. 302 Illustrations. 480 pp. Demy 8vo. 1901. Price 10s. 6d.; India and Colonies, 11s.; Other Countries, 12s.; strictly net. =Contents.=