North America 



REFERENCES 



CONANT, Roger 1958. A Field Guide to Rep- 

 tiles and Amphibians of the United States 

 and Canada East of the 100th Meridian. 

 Houghton Mifflin : Boston, xiii + 836 pp., pis. 

 1-10 (some color), figs. 1-62, Maps 1-248. 



FITCH, Henry S. 1960. Autecology of the 

 Copperhead. I'liiv. Kansas Publ. Mus. Xat. 

 Hist., vol. 13, pp. 85-288, pis. 13-20. figs. 

 1-26, tables 1-26. 



KLAUBER, LAURENCE M. 1956. Rattle- 

 snakes: Their Habits, Life Histories, and In- 

 fluence on Mankind. Univ. of California 



Press: Berkeley and Los Angeles. Vol. I, 

 xxix + 1-708 pp., figs., tables, maps, frontis. 

 (color). Vol. II, xvii + 709-1476 pp., figs., 

 tables, frontis., (color). 



STEBBIXS, Robert C. 1954. Amphibians and 

 Reptiles of Western Xorth America. Mc- 

 Graw-Hill : Xew York, xxii -I- 1-528 pp., pis. 

 1-104. 



WRIGHT. Albert II. and Anna A. AVRIGHT 

 1957. Handbook of Snakes of the L'nited 

 States and Canada. Comstock : Ithaca, X.Y., 

 2 vols., 1105 pp., 305 figs., 70 maps. 



NOTES 



45 



