Yellozvstone Beaver 221 



of long excursions into the wilderness, — how they fell trees for food 

 and habitation, their marvelous engineering skill in damming streams 

 and constructing lodges, their family life, and their relation to their 

 surroundings. It is worth while to know these interesting facts at 

 first hand rather than solely from pictures and books. 



References to Literature 



Dugmore, A. Radclyffe. 



1914. The Romance of the Beaver. Pp. 1-225. Phila. 



Johnson, Charles E. 



. 1922. An Investigation of the Beaver in Hamilton and Herki- 

 mer Counties of the Adirondacks. Roosevelt Wild 

 Life Bull., Vol. 1, No. 2, pp. 1 17-186. 



Mills, Enos A. 



1913. In Beaver World. Pp. 1-228. Boston. 



Morgan, 

 1868 



Seton, E 

 1909 



1913 

 Warren, 



1905 



Lewis H. 

 American Beaver and His W^orks. Pp. 1-330. Phila. 

 T. 

 Life Histories of Northern Animals. Vol. 1, pp. 1-673; 



Vol. 2, pp. 674-1267. New York. 

 Wild Animals at Home. Pp. 1-226. New York. 

 E. R. 

 Some Interesting Beaver Dams in Colorado. Proc. 

 Wash. Acad. Sci. Vol. 6, pp. 429-437. 



