(000160) Cunningham, Bert. Axial Bifurcation in Serpents: An Historical Survey of Serpent Monsters Having Part of the Axial Skeleton Duplicated. Durham: Duke Univ. Press, 1937. 1st Edition. Hardcover. Thin 8vo. 117 pages. Very Good in Very Good DJ. B&W Illustrations. Slight skinning to front endpaper where a sticker was remove. DJ rear panel has a slight stain where a sticker was removed. Introduction by Raymond L. Ditmars. Data on two-headed, two-tailed, and Siamese twin snakes. Very scarce title. (Nature) (Snakes, Reptiles, Axial Bifurcation)