Color Standards and Nomenclature . By Robert Ridgway, M.S., C.M.Z.S., etc.; Curator of the Division of Birds, U. S. National Museum. Pp. iii + 44, with 53 plates containing illustrations of 1,115 named colors, and providing a system of nomenclature permitting the definite location and designation of over 4,000 colors. Published by the author, Washington, D. C. Press work by A. Hoen & Co., Baltimore.