Field Museum of Natural History. 



Publication i86. 



Report Series. Vol. V, No. i. 



ANNUAL REPORT OF THE 

 DIRECTOR 



TO THE 



BOARD OF trustees 



FOR THE YEAR 1915. 



Chicago, U. S. A. 



January, 19 1 6. 



fHfc IJBhAKV Ul- Hit 



OEC 2 2 1942 

 UNIVERSITY Of Uimi^ 



