Bui. 379, U. S. Dept. of Agriculture. 



Plate III. 



Fig. 1 .—Black Smut-Dust Cloud Coming Out of Blower Pipe During Threshing 

 OF Smutty Wheat in Eastern Washington. 



Fig. 2.— Steel Machine Badly Damaged by Smut Explosion and Fire in Eastern 



Washington. 



Fig. 3.— Wooden Machine Completely Destroyed by Smut Explosion and Fire 



