ate edt ed 
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THE LIFE HISTORY OF THE DUSKY DARTER, 
PERCINA SCIERA, 
IN THE EMBARRAS RIVER, ILLINOIS 
-awrence M. Page 
Philip W. Smith 
-LINOIS NATURAL HISTORY SURVEY 
iological Notes No. 69 
bana, Illinois e September, 1970 
THE LIBRARY OF THE 
ate of Illinois 
0 
partment of Registration and Education ule 3 : ie 
TURAL HISTORY SURVEY DIVISION UNIVERSITY OF ILL! 
AT URBANA-CHAMPAIGN 
APR 6 1971 BIOLOGY LIBRARY 
101 BURRILL HALL 
