The Bulletin 
31 
TABLE II —Results of Feeding White Snakeroot to Sheep in 1916. Experiment 5. 
Ewe No. 
Initial weight. 
Pounds. 
Final weight. 
Pounds. 
Days on experi¬ 
ment. 
Feed consumed. 
Grain. | Weed. 
169 
83 
78 
3 
1.5 
1.5 
171 
85 
80 
3 
1.5 
1.5 
162 
96 
82 
8 
5.5 
5.5 
168 
89 
79 
6 
4.25 
4.25 
161 
102 
62 
9 
6.75 
6.75 
170 
105 
92 
9 
5.5 
5.5 
Ill effects followed only in the cases of ewes 169 and 161, the former 
dying 8 days and the latter 11 days after being taken off the experiment. 
Since ewe 169 evidenced no well marked symptoms of trembles, a post¬ 
mortem examination was made which showed that stomach worms mav 
have been a contributory cause of her death. Ewe 161, however, devel¬ 
oped a typical case of trembles and is the animal represented in figures 
A, B, C, and D. 
Experiment 6 .—The preceding experiments, which were conducted in 
1916, had demonstrated the poisonous nature of white snakeroot. At¬ 
tention was therefore first directed in the succeeding year to determine 
by experiment, first, if the disease can affect animals in lactation, and 
second, if these animals can transmit the disease through the milk to 
their offspring. Eor this purpose, six ewes with suckling lambs were 
employed in an experiment which was begun May 13, 1917. The facts 
brought out in the second part of this experiment are properly referred 
to Table YI and will, therefore, appear in their appropriate place later 
in this report. The data bearing on the first point, however, are sum¬ 
marized in Table III, which is presented as follows: 
TABLE III —Results of Feeding White Snakeroot in 1917 to Ewes with Suckling 
Lambs. Experiment 6. 
Ewe 
No. 
1 
Initial \Experiment 
weight. \ begun. 
Lbs. | 
Date of 
death. 
Days before 
death occurred. 
Weight 
at death. 
Lbs. 
Gain or 
loss. 
Lbs. 
Grain. 
Lbs. 
Feed g 
Weed. 
Lbs. 
iven. 
Kale. 
Lbs. 
Hay 
Lbs. 
171 
76 
May 13 
Aug. 30 
109 
88 
12 
162 
54 
134 
106 
162 
81 
May 13 
Sept. 2* 
111 
88 
7 
163 
55 
134 
108 
175 
83 
May 13 
Sept. 2 
111 
98 
15 
165 
55 
134 
108 
167 
104 
May 13 
Aug. 20 
99 
105 
1 
132 
44 
132 
96 
12 
94 
May 13 
July 24 
72 
97 
3 
103 
34 
134 
69 
168 
80 
May 13 
July 15 
63 
74 
6 
80 
27 
124 
60 
^Discontinued feeding white snakeroot at this date. 
It will be noted that four of the six ewes developed trembles and died 
while on this experiment, and that two were apparently normal when 
the feeding with white snakeroot was discontinued. Only meagre quan¬ 
tities of milk were being given by these animals after July 1. Ewes 168 
and 12 died on July 15 and July 24, respectively, at which times their 
