Yearbook U. S. Dept. of Agriculture, 1917. 



PLATE I. 



PHOTO FROM N. DAK. AGS. COLLEGE. 



FIG. 1.— DEMONSTRATING THE PREPARATION OF POISONED GRAIN. 



Strychnin paste is mixed with oats or other grain in a box or on a smooth floor by means 



of a shovel. 



M N. DAK. AOR. COLLEGE. 



FIG. 2.— DISTRIBUTING PREPARED GRAIN TO FARMERS. 



The poisoned grain is placed in sacks plainly labeled to show the character and the 

 purpose of the contents before being distributed to coopcratiug farmers. 



