LARKSPUR POISONING OF LIVE STOCK. 49 
whether it was not partly caused by the peristaltic action resulting 
from physostigmin salicylate. At 10 p. m. the pulse seemed slightly 
stronger. He was evidently in pain, as he groaned a great deal of 
the time. At 11.20 it was found that he had moved himself quite a 
little distance in the corral and passed a small amount of hard 
feces. At 11.30 he got upon his feet and walked about the corral. 
His gait, however, was stiff, the stiffness being particularly notice- 
able in the hind legs. At 11.44 he passed a considerable amount of 
feces and acted as though he wished to eat. As he appeared to be 
very much better at this time, he was left for the night, and was 
found in good condition at 7 a. m. June 23. He was turned into the 
pasture at 8.30. In the afternoon of this day he was found in a 
clump of aspens in the pasture and was driven out. He went about 
100 yards in a slow trot, going down a side hill, and fell. This was 
at 3.55. At 4.05 he began to vomit. His pulse was about 85 and 
weak. At 4.12 respiration had ceased. The pulse was perceptible 
for about three minutes, stopping at 4.15. The animal was slightly 
bloated at first and began bloating rapidly when down. A consider- 
able amount of material from, the rumen had been vomited. At the 
autopsy the heart was found in diastole. The outer walls were 
slightly inflamed. Both ventricles were dilated and full of. blood. 
The veins under the skin were congested. The nares, larynx, and 
trachea were full of the material vomited from the stomach, and this 
material had also extended into the bronchi. The walls of the fourth 
stomach were greatly inflamed, and the walls of the duodenum, jeju- 
num, ileum, and rectum were slightly inflamed. A microscopic ex- 
amination was made of the contents of the stomach, and it was found 
that Delphinium harheyi was present. It seems probable that the 
animal, after recovering from the poisoning by Delphinium memiesii 
had commenced to eat the Delphinium harheyi, which was fairly 
abundant in the pasture, and that his death was caused by this dose 
of the tall larkspur. 
Case 609. 
Case 609 was a yearling heifer weighing about 500 pounds, loaned 
to the station for experimental purposes. Feeding was commenced 
at 7.05 a. m. on June 26, the material being tops of Delphinium 
menziesii, which at this time was mature and included seeds. On 
June 26 and 27 she ate 43.75 pounds. The material on June 27 
contained flowers as well as seed. Distinct symptoms of poisoning 
were observed early on the morning of June 28. Before that it had 
been thought that she was somewhat uneasy, but the symptoms were 
not positive. At 4.55 a. m. she got up and walked a few steps, trem- 
bled, and fell, but at 5 she got upon her feet and after this time was 
able to stand. She was down only about five minutes. During the 
26876°— Bull. 365—16 4 
