Light and Colour Theories, and their relation to light and colour standardization

Tintometer. Form of Instrument for Opaque Observation.

Reproductions of some Medals awarded to JOSEPH W. LOVIBOND’S Method of Colour Analysis FOR Scientific and Commercial Purposes.
By JOSEPH W. LOVIBOND
ILLUSTRATED BY 11 PLATES COLOURED BY HAND
London E. & F. N. SPON, Limited, 57 HAYMARKET New York SPON & CHAMBERLAIN, 123 LIBERTY STREET 1915

Plate I. Newton’s Theory. The Indigo line is erroneously placed between the Violet and the Red; it should be between the Blue and the Violet. Page 40.— Fifth line from the bottom, for Fraunhoper read Fraunhofer.


The purpose of this work is to demonstrate that colour is a determinable property of matter, and to make generally known methods of colour analysis and synthesis which have proved of great practical value in establishing standards of purity in some industries.
The purpose is also to show that the methods are thoroughly scientific in theory and practice, and that the results are not likely to be changed by further discoveries. Also that out of the work done a new law has been developed, which the writer calls the Law of Specific Colour Development, meaning that every substance has its own rate of colour development for regularly increasing thicknesses.