The Biochemistry of the Carotenoids: Volume II Animals

des Plantes (Hermann, Paris), and in 1935 by Lederer's Les Carotenoides des Animaux (Hermann, Paris). Since then a survey such as the present one has not appeared. In order to present a full picture, much of the pre-1934 work has been reconsidered and, as far as is known, every important contribution which has appeared since that date has been discussed. Two peripheral aspects of the subject have, however, been omitted, namely (a) the qualita­ tive and quantitative changes which the caroten...