Anatomy of the Wood Rat 



By A. Brazier Howell 



A study in the comparative anatomy of the sub- 

 genera of the American wood rat (genus Neotoma), 

 illustrated with 37 figures, 8 in color, and 3 half-tones. 

 A study of great interest to the biologist, the zoologist, 

 etc. 



Monographs of the American Society of Mammalogists 

 Number One. $5.00 



The Beaver 



Its Work and Its Ways 

 By Edward R. Warren 



The first adequate study of the beaver in North 

 America produced in half-a-century. Based upon a 

 full knowledge of all past writings and a large personal 

 observation. Scientifically accurate, yet simple and 

 readable in style. 



Monographs of the American Society of Mammalogists 

 Number Two. $3.00 



THE WILLIAMS & WILKINS COMPANY 



Publishers of Scientific Books and Periodicals 

 BALTIMORE, U.S.A. 



