Plate XVI. Fig. 1.— Various Forms of the Sweet Corn Bacillus 

 Grown on Potato Agar; <i and 6 are Typical Forms. Magnifica- 

 tion, 1,875 Diameters. 



Plate XVI. Fig. 2.— Petri-dish Culture of the Sweet Corn Bacillus 

 Showing Effect of Exposure to Sunlight. 



