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	1.		Principles of animal taxonomy / G.G. Simpson by Simpson, George Gaylord, 1902- Series: Columbia biological series ; no. 20 Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York : Columbia University Press, 1961 Availability: Items available for loan: Main Library - Open Shelves (1). Place hold Save to lists Add to cart (remove)
	2.		Quantitative zoology : numerical concepts and methods in the stud y of recent and fossil animals / by George Gaylord Simpson and Anne Roe by Simpson, George Gaylord, 1902- Roe, Anne, 1904- Series: McGraw-Hill publications in the zoological sciences Edition: 1st ed. Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York : McGraw-Hill Book Company, Inc., 1939 Availability: Items available for loan: Main Library - Open Shelves (1). Place hold Save to lists Add to cart (remove)
	3.		Tempo and mode in evolution / George Gaylord Simpson. by Simpson, George Gaylord, 1902- Series: Columbia biological series ; no. 15. Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York : Hafner Pub, Co., 1965. [c1944] Availability: Items available for loan: Main Library - Open Shelves (1). Place hold Save to lists Add to cart (remove)
	4.		Evolution and geography: an essay on historical biogeography, wit h special reference to mammals. by Simpson, George Gaylord, 1902- Series: ( Condon lectures) Material type: Text; Format: print ; Literary form: Not fiction Publication details: Eugene : Oregon State System of Higher Education, 1953 Availability: Items available for loan: Main Library - Open Shelves (1). Place hold Save to lists Add to cart (remove)
	5.		Life of the past : an introduction to paleontology / G. G. Sim pson by Simpson, George Gaylord, 1902- Material type: Text Publication details: New Haven : Yale University Press, 1953 Availability: Items available for loan: Main Library - Open Shelves (1)Call number: 560 SIM. Place hold Save to lists Add to cart (remove)
	6.		Behavior and evolution / edited by Anne Roe and George Gaylord S impson. by Roe, Anne, 1904- Simpson, George Gaylord, 1902- Material type: Text Publication details: New Haven : Yale University Press, 1958 Availability: Items available for loan: Main Library - Open Shelves (1). Place hold Save to lists Add to cart (remove)
	7.		Behavior and evolution / edited by Anne Roe and George Gaylord S impson. by Roe, Anne, 1904- Simpson, George Gaylord, 1902- Material type: Text Publication details: New Haven : Yale University Press, 1958 Availability: No items available. Save to lists Add to cart (remove)
	8.		The principles of classification and a classification of mammals / by George Gaylord Simpson. by Simpson, George Gaylord, 1902- American Museum of Natural History Series: Bulletin of the American Museum of Natural History ; v. 85. 1945 Material type: Text Publication details: New York : American Museum of Natural History, [ n.d.] Availability: Items available for loan: Albert Cook Medical Library - ACM (1). Place hold Save to lists Add to cart (remove)
	9.		Life : an introduction to biology / [by] George Gaylord Simpso n, Colin S. Pittendrigh [and] Lewis H. Tiffany; drawings by CARU studio s. by Simpson, George Gaylord, 1902- Material type: Text Publication details: New York : Harcout, Brace , [1957] Availability: Items available for loan: Albert Cook Medical Library - ACM (1)Call number: QH 308 Si58l. Place hold Save to lists Add to cart (remove)
	10.		The meaning of evolution : a study of the history of life and of its significance for man / G. G. Simpson. by Simpson, George Gaylord, 1902- Material type: Text Publication details: New Haven : Yale University Press, 1949 Availability: Items available for loan: Main Library - Open Shelves (1)Call number: 575 SIM. Place hold Save to lists Add to cart (remove)
	11.		Notes on the nature of science / George Gaylord Simpson ...[et al .]. by Simpson, George Gaylord, 1902- Material type: Text Publication details: New York : Harcourt, Brace & World, Inc., 1962 Availability: Items available for loan: Main Library - Open Shelves (1)Call number: P 500 N69. Place hold Save to lists Add to cart (remove)