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UNIVERSITY OF ILLINOIS 

 UltBANA 



Field Museum of Natural History. 



Publication i6o. 



Report Series. Vol. IV, No. 2. 



ANNUAL REPORT OF THE 

 DIRECTOR 



TO THE 



BOARD OF TRUSTEES 



FOR THE YEAR 19 11. 



THE LIBHAK^ ur JHh 



DEC 2 21942 

 UNIVERSITY OF ILLINOIS 



Chicago, U. S. A. 



January, 1912. 



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