OCT 7 1915 



Bulletin 



OF THE 



Illinois State Laboratory 



Natural History 



Urbana, Illinois, U. S. A. 



STEPHEN A. FORBES, Ph.D., E.E.D., 

 Director 



Vol. XI. July, 1915 Article I. 



AN OUTLINE OF THE RELATIONS OF ANIMALS 

 TO THEIR INLAND ENVIRONMENTS 



BY 



Charles C. Adams, Ph.D. 



