SPRING 1937 
POSTMASTER: 
Return 
postage guaranteed it undelivered 
fnut 
SEC. 562, P.L. & R. 
i mm 
I ■ - 
»'* V. 4U i V ► •- 4_> 
* APR 1 7 1237 ☆ 
U. S. Drpsrtraeut c' Agriculture. 
U. S. Department of Agriculture, 
Washington, D. C. 
Bureau of Plant Industry 
Fruit and Vegetable Crops and Diseases 
ft*. K. N 
\ 
OPO 8—3591 
