LARKSPUR POISONING OF LIVE STOCK. 53 
but was resumed on September 9. From this time until September 
14 he ate 78.25 pounds of Delphinium barbeyi. The material fed 
in these later experiments was mature and dry. No effect resulted 
from the larkspur feeding except that part of the time the horse 
seemed sleepy and lifeless. It should be noted that this feeding 
was rather late in the season, when, as shown elsewhere, the lark- 
spur is only slightly toxic. 
Case 78. 
Case 78 was a horse weighing about 600 pounds, which had already 
been used at Hugo in the loco experiments. An attempt was made 
early, in July to feed it both Delphinium barbeyi and Delphinium 
menziesii, but without any effect. On August 23 it was brought 
into the corrals in order to try a prolonged feeding experiment 
with Delphinium barbeyi. The material given was collected in 
Kebler Pass and consisted of tops, including the fruit. The 
animal was fed from August 24 to September 2, inclusive. During 
this time it ate 168J pounds, or, in the ratio of its weight, the quan- 
tity eaten was as 1 to 3.6. No effect of the feeding was noticed 
until September 2. Between 10 and 11 o'clock of the morning of 
September 2 it was noticed that the action of the hind legs was 
stiff and that the animal acted as if he did not have complete control 
of his legs. There was some trembling of the muscles of the flanks 
and twitching of the muscles of the lips and nostrils. The ab- 
dominal muscles contracted as though in pain. In walking he 
straddled with his hind legs and appeared weak behind. He was 
constantly moving about, apparently from pain. The back was 
arched up, and he was very much constipated. At 11.25 he was 
given some hay and commenced to eat it, but while eating stepped 
about uneasily as though in pain. At 12.15 he was found down, but 
was started up and got upon his feet without any difficulty, although 
his movements after rising were somewhat uncertain. After rising 
he kept walking about, evidently feeling very uncomfortable. He 
lay down again at 12.25. His respiration at this time was 78. Fig- 
ures 1, 2, 3, and 4 of Plate XIV show various attitudes assumed 
during his illness ; figure 1 shows clearly the discomfort under which 
the animal was laboring; figure 2 shows him after he lay down; 
figure 3 shows his attitude at 1.08, when he was most severely ill; 
and figure 4 shows him a little later than this when he was upon 
his feet but still feeling great discomfort. At 1.55 he was lying 
down again, and when started and run around the corral he moved 
readily, showing little tendency to stagger or to fall. At 3 p. m. 
he was found standing in the corral, his lips no longer trembling, 
and he no longer had a tendency to walk about uneasily as earlier in 
the day. His gait was slow, however, and he was sleepy. At this 
