STATE OP ILLINOIS 



DEPARTMENT OP REGISTRATION AND EDUCATION 



A. M. Shelton. Director 



BOARD OP 

 NATURAL RESOURCES AND CONSERVATION 

 A. M. Shelton, Chairman 

 WnxiAAi Trelease, Biology John W. Alvord. Engineering 



John M. Coulter, Forestry 

 Edson S. Bastin, Geology 

 William A. Noyes, Chemistry 



Kendric C. Babcock. Representing the 

 President of the University of Illi- 

 nois 



THE NATURAL HISTORY SURVEY DIVISION 

 Stephen A. Forbbs, Chief 



SCHNBPP & Barnes. Puixtbr* 



Springfield. III. 



1924 



223(14—1200 



