[43] Shufeldt, R. W. "Osteology of Birds," Education Dept. Bull. No. 447, Albany, N. Y., May 15, 1909. N. Y. State Mus. Bull. 130, pp. 222-224; based upon a former contribution which appeared in The Journal of Comparative Medicine and Surgery, July, 1887, entitled "A Critical Comparison of a Series of Skulls of the Wild and Domesticated Turkeys." (Meleagris gallopavo silvestris and M. domestica.)