STATE OF ILLINOIS 



DEPARTMENT OF REGISTRATION AND EDUCATION 



A. M. Shelton, Director 



BOARD OF 



NATURAL RESOURCES AND CONSERVATION 

 A. M. Shei-ton, Chairman 



WiLUAM Trelease, Biologv 

 JoHi^ M. Coulter, Forestry 

 Edson S. Bastin, Geology 

 William A. Notes, Chemistry 



John W. Alvord, Engineering 

 Kendric C. Babcock, Representing the 

 President of the University of Illi- 

 nois 



THE NATURAL HISTORY SURVEY DIVISION 

 Stephen A. Forbes, Chief 



ScHNEPP & Barnes. Printers 



Springfield, III. 



1923 



B306— 4M 



