Re 
eS 
CI 
CONTROL OF ELM DISEASES 
IN 
NURSERY ELM PLANTINGS 
d<« Gs Carter 
STATE OF ILLINOIS 
Henry Horner, Governor 
Department of Registration and Education 
NATURAL HISTORY SURVEY DIVISION 
Theodore He Frison, Chief 
Biological Notes Noe 4 Urbana, May 10, 1957 
Contribution from the 
Section of Applied Botany and Plant Pathology 
Leo R. Tehon, Botanist 
(Publication No, 305) 
Natural History Sury o) 
Library 
