Carotinoids and Related Pigments, the Chromolipoids.

This is one of the valuable series of monographs the American Chemical Society is promoting, in order to make available concise but complete statements of the existing knowledge in many fields of chemistry. This is among the several projected or published monographs that have value for medicine, since the carotinoid pigments occur in man and occasionally show modifications in disease. We may mention, for example, the fact that a condition resembling jaundice has been observed following a diet containing excessive quantities of carrots and other vegetable foods rich in these pigments, especially in children. The yellow skin of diabetics, described by von Noorden as xanthosis diabetica, seems also to depend on the vegetarian diet of these patients. The yellow color of the corpus luteum, of the fat tissues, and probably the animal pigments called lipochrome, in general, are merely stored vegetable pigments of the carotinoid group. As a complete and