14 
RE-TIRE WITH SAFETY—USE BRUNSWICKS 
EVEW 
C/li BE MADE 
Plow down Granular 'Aero' Cyanamid— 
200 to 500 pounds per acre—with weeds, 
crop wastes, grass sods, or non-legume 
cover crops. 
This treatment will make these low-grade, 
inexpensive materials (they are worthless, 
or even harmful, when plowed down with¬ 
out fertilizer) as valuable as manure or 
clover for humus. 
30 ROCKEFELLER PLAZA 
NEW YORK, N. Y. 
Write for Leaflet F-155 
FOR SALE BY 
Lake^Cook Farm Supply Co, 
