Bui. 947, U. S. Dept. of Agriculture. 



Plate I. 



Fig. I.— Sheep 421, at 10.44 a. m. 

 September 18, 1917. 



Fig. 2.— Sheep 421, at 10.45 a. m. 

 September 19, 1917. 



Fig. 3— Sheep 421, at 10.46 a. m. 

 September 19, 1917. 



Fig. 4.— Sheep 332, in the Act of 

 Vomiting. 



Fig. 5.— Sheep 314, in Attitude 

 Showing Weakness. 



Fig. 6.— Sheep 314, Just Before 

 Death. 



