Ladd-Franklin, Christine, 1847-1930 Colour and colour theories / by Christine Ladd-Franklin - London : Kegan Paul, Trench, Trubner , 1929 - xv, 287 p. : col. port., ill.us., viii col. pl., diagr. ; 23 cm. - International library of psychology, philosophy and scientific method . Includes index "List of dates and original sources": p. 281 Subjects--Topical Terms: Color visionColorLight Dewey Class. No.: 535.6