Field Museum of Natural History. 



Publication 173. 



Report Series. Vol. IV, No. 4. 



ANNUAL REPORT OF THE 

 DIRECTOR 



TO THE 



BOARD OF TRUSTEES 



FOR THE YEAR 1913. 



^^^ 



Chicago, U. S. A THE LIBKAKY Oh IHE 



January, 1914. Qrrj 2 2 1942 



UNIVERSITY OF ILLINOIS 



