WOOD, A. E. 1935. Evolution and relationship of the heteromyid rodents. Ann. Carnegie Mus., 24:73-262, May 13. 1936. Geomyid rodents from the Middle Tertiary. Amer. Mus. Novit., 866:1-31, July 2. 1950. A new geomyid rodent from the Miocene of Montana. Ann. Carnegie Mus., 31:335-338, 1 fig. 1955. A Revised classification of rodents. Jour. Mamm., 36:165-187, May 26. WOOD, A. E., and WILSON, R. W. 1936. A suggested nomenclature for the cusps of the cheek teeth of rodents. Jour. Paleo., 10:388-391, 2 figs., July. _Transmitted May 29, 1967._ [] * * * * * Transcriber's note: All obvious typographical errors were corrected. Minor changes were made to standardize the text to match the most prevalent form used. Typographical Corrections Page Correction ==== ============ 477 cumberlandicus => cumberlandius 535 breath => breadth End of the Project Gutenberg EBook of Evolution and Classification of the Pocket Gophers of the Subfamily Geomyinae, by Robert J. Russell