Gm~. Cat, ~7Z , Cat, 



NATURAL 

 ^"SOURCES 



Illinois State 



NATURAL 



URBANA, ILLINOIS. 



atexiy •wi's.L^ 



L I B RA R.Y 



OF THE 



U N I VERS ITY 



Of ILLINOIS 



530.5 



FI 



\/.\,cot>3 



