SPRING 1940 
POSTMASTER: Return postage guaranteed if undelivered. 
X/ I B Tl A R 
K C K Tt V ® ® 
tiAO 1 A IQAO 
U. S. Department of Agriculture, 
Washington, D. C. 
Bureau of Plant Industry 
jjj|rul^id j^getable Crops and Diseases 
«FO 8—3601 
