OCT 7 1915 



Bulletin 



Olf THE 



Illinois State Laboratory 



OF 



Natural History 



Urbana, Illinois, U. S. A. 



STEPHEN A. FORBES, Ph.D., L.L.D., 

 Director 



Voi,. XL July, 1915 Article I. 



AN OUTLINE OF THE RELATIONS OF ANIMALS 

 TO THEIR INLAND ENVIRONMENTS 



BY 



Charles C. Adams, Ph.D. 



ymtamm^^amtm 



