J 



PI 



LIBRARY 

 UNIVERSITY OF ILLINOIS 



DUMA 



Field Museum of Natural History. 



Publication 150. 

 Report Series. Vol. IV, No. 1 



ANNUAL REPORT OF THE 

 DIRECTOR 



TO THE 



BOARD OF TRUSTEES 



FOR THE YEAR 1910. 



\S& 





Chicago, U. S. A. 



January, 1911. 



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