468 PRACTICAL ZOOLOGY 



REFERENCES 



Wild Life Conservation, by W. T. Hornaday. — Yale University Press, New 



Haven, Conn. 

 The American Natural History, by W. T. Hornaday. — Charles Scribner's 



Sons, New York. 

 Our Vanishing Wild Life, by W. T. Hornaday. — Charles Scribner's Sons, 



New York. 

 Bulletins and Circulars prepared by the Bureau of the Biological Survey, 



U. S. Department of Agriculture. 



