Alomical Edomonts Ut 
pYEASANT TISSUES 
William L. Anderson 
Peggy L. Stewart 
BIOLOGICAL NOTES NO. 67 
ILLINOIS NATURAL HISTORY SURVEY 
RBANA, ILLINOIS APRIL, 1970 
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STATE OF ILLINOIS 
DEPARTMENT OF REGISTRATION AND EDUCATION 
NATURAL HISTORY SURVEY DIVISION 
THE LIBRARY. O1 
, BIOLOGY LIBRARY = yniveRSITY.OF, ILL 
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