STATE OF ILLINOIS 



DEPARTMENT OP REGISTRATION AND EDUCATION 



A. M. Shelton, Director 



BOARD OF 

 NATURAL RESOURCES AND CONSERVATION 



A. M. Shelton, Chairman 



William Treij:ase, Biology 

 Henry C. Cowtes Forestry 

 Edson S. Bastin, Geology 

 William A. Noyes, 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 



ScHNBPP & Barnes, Printers 



Springfield, III. 



1927 



59061—800 



