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Lancaster, PA: The American Ornithologist's Union, 1940 467-616pp, [[9], bound in illustrated stiff paper covers, with the binding and hinges tight. NO LABELS, INSCRIPTIONS, NOR MARKINGS. With PLates 8, 9 & 10. Contents include **Mating Performance of the Sage Grouse **Social Nesting Habits of Guira Guira **Light and Molt in Weaver Finches **Factors Affecting Length of Incubation **Sarcocystis in Birds **Anting By the Song Sparrow **Wintering of the Greater Snow Geese **A Collection of Seventeenth-Century Drawings **Canadian Status of the Long-Tailed Chickadee **New Birds From Southern Mexico **Oriental Forms of Picus Canus, and more. Back cover shows a partial corner tear, front cover shows light staining.