Author: Stull, O. G.
Title: Variations and relationships in the snakes of the genus Pituophis.
Description: Washington, DC, Smithsonian Institution, 1940. 8vo (23.3 x 14.8 cm). vi, 225 pp., 82 text figures. 20th century red blind half cloth over marbled boards. Original printed front wrapper bound in. = Rare bound copy of a very thorough taxonomical and phylogenetical study. This is the United States National Museum Bulletin 175. Stamp on title page verso below the "Advertisement", otherwise a very good, clean copy.

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