6 BULLETIN 710, U. S. DEPARTMENT OF AGRICULTURE. 



TYPICAL CASES. 



Cattle No. 122. 



The experimental work with calf Xo. 122 may be considered as giv- 

 ing typical results of the poisoning of cattle. The calf was somewhat 

 undersized and poor, and weighed 108 pounds. 



The feeding of the Chrosperma was commenced April 13, 1911. 

 On this date TO grams of the leaves of the plant were fed without any 

 resulting symptoms. The plant material was received about April 

 11, and had been kept in cold storage. On April 14 the calf ate 45 

 grams of the leaves. This feeding was commenced at 10.25 a. m., 



Fig. 3.— Sheep No. 228 at 1.14 p. m., March 25, 1914. 



and at 11.40 the animal showed distinct signs of feeling ill. Her 

 back was arched, she vomited, refusing to eat any more, and moaned. 

 This condition continued until 12.06, and during this time the animal 

 was quite sick. While lying down she threw her head sometimes 

 from side to side and gave evidence of abdominal pain. After that 

 there was less evidence of pain, but still much discomfort. The tem- 

 perature was about normal. The animal appeared to be recovering 

 and the observer left at 1.30 p. m. During the following night she 

 was seen at intervals by the watchman, who reported that she vomited 

 repeatedly. She staggered when walking, appearing to be especially 

 weak in the hind parts. She did not recover her appetite until about 

 noon, April 16. The effect of the poison apparently continued from 

 April 14 to noon of April 16, or about 48 hours. 



