POISONOUS PEOPEETIES OP THE WHOELED MILKWEED. 5 
achs appeared normal. There was some gas in the jejunum and 
ileum, and congestion in the posterior part of the ileum. The liver 
was pale and blotched, and the gall bladder was distended with gas. 
Tapeworms were present in the bile ducts and in the pancreatic duct. 
There were hemorrhagic spots on the surface of the thymus. The 
brain and spinal cord appeared normal. 
The results of microscopic examination of the tissues are given on 
pages 7 to 10. 
SYMPTOMS. 
The most prominent symptom in all the cases of poisoning was a 
weakness of the hind quarters of the animals, which resulted in a 
staggering gait. There was in most of the cases depression and in 
SEPT.27 
AM. • 
10 II IZIS3 
PM. 
5 6 7 
3EPT.28 
» AM. I PM. 
10 It IS I S 3 f- 5 6 7 a 9 IO II 12 I S. 3 1 5 6 7 & 9 10 If IS 
t 
: : ::__ ___» ._ _i___ 
± I A. J 
V-/t / 
-\A-- 
7 
/ 
• — ■■"! *- j 
t 
S 
(OS 
108 
107 
^103 
Fig. 2. — Temperature curve of Sheep 547. 
some evident trembling, . but the staggering was universally present 
and was particularly noticeable. This was not due in most cases to 
extreme weakness, for the animals could get about quite readily, but 
appeared in a gait which reminded one very much of a drunken man. 
This symptom of staggering was one which in some cases continued 
for several days. The pulse generally was weak and rapid, and the 
animals which were quite sick frequently accompanied the expira- 
tions with a grunt or a groan. In the cases which recovered there 
was no bloating, salivation, or spasm. It was quite noticeable in 
many of the cases that the animals when standing held the head 
high and the nose extended forward in a very characteristic fashion. 
In the animals which were fatally poisoned, in addition to the symp- 
toms already described, there was some bloating and salivation, and 
