Sprinefleld, 111* 



Field Museum of Natural History. 



Publication 200. 



Report Series. Vol. V, No. 3. 



7 



ANNUAL REPORT OF THE 

 DIRECTOR 



TO THE 



BOARD OF TRUSTEES 



FOR THE YEAR 1917. 



Chicago, U. S. A. 

 January, 191 8. 



\TE 



