I'rofessor Iluxley, Henri LeCourt, W. T. Hornaday, Dr. 

 Theodore Gill, R. Ramsey Wright, W. H. Blundell and 

 W. N. Lockington ; and the Government reports issued by 

 the United States Department of Agriculture, and the 

 Bureau of Fisheries of the Department of Commerce. 



The helpful co-operation of my wife, the courtesies ex- 

 tended to me by Dr. Francis A. Crandall, Jr., curator of 

 the Buffalo Park Zoo, and many others whose names are 

 not mentioned, and the assistance given by my pub- 

 lisher, Mr. H. A. Hammond of Buffalo, are gratefully 

 acknowledged. 



