PLATE XII. 



Fig. 1. — Showing a comparison of plants grown on field 

 plots fertilized with calcium cyanamid and dried blood. 



(1) Oats from plot fertilized with calcium cyanamid. 



(2) Oats from plot fertilized with dried blood. 



(3) Rye from plot fertilized with calcium cyanamid. 



(4) Rye from plot fertilized with dried blood. 



