4 BULLETIN 942, U. S. DEPARTMENT OF AGRICULTURE. 
she staggered when walking, appearing " stiff behind." During this 
day and August 31 her condition remained much the same. She was 
depressed, held the head high much of the time, and staggered or 
wabbled when walking. On September 1 the uncertain movement 
in walking had largely disappeared, but she was rather inactive. On 
September 2 she had apparently entirely recovered. There was no 
elevation of temperature during this sickness. 
This animal received several closes of eserin and pilocarpin, but 
apparently the remedy had no beneficial effect. 
On September 27 another experimental feeding was made, the 
sheep at this time weighing 99 pounds. She received 2.559 pounds, 
green weight, per 100 pounds of animal, between 3.20 and 3.50 p. m. 
On September 28, at 7.40 a, m., she stood with head held high and 
nose extended, was somewhat bloated, and unsteady on her feet, this 
latter characteristic being most marked in the hind legs. 
At 9.09 a. m. the pulse was weak, respiration irregular, and the 
animal staggered badly. This condition continued, the weakness and 
discomfort increasing. Plate II, figure 1, taken at 10.46 a. m., when 
she was somewhat salivated, illustrates the general condition. At 
11.15 a. m. she was found down and unable to rise. She went into a 
spasm at 11.21, with the head drawn toward the breast. Another 
spasm followed at 11.35, the head being first drawn down and then 
thrown back in the position of opisthotonos. 
The pulse at this time was rapid and weak and the respiration 
labored. Until about 6 p. m. there was an almost continuous series 
of spasms, the time between successive ones rarely being as much as 
5 minutes. At noon running movements appeared in connection 
with the spasms. The spasms were very violent for the most part, 
opisthotonos being very marked and sometimes the head was struck 
upon the ground with great violence. Plates II and III show some 
of the attitudes assumed between 11.36 a. m. and 1.45 p. m. 
About 6 p. m. the animal became comparatively quiet, and re- 
mained so until 8.50 p. m., when a series of continuous spasms com- 
menced, which were terminated by death at 9.23 p. m. 
Most of the time the pulse was rapid and weak. The respiration 
varied, sometimes being very rapid, and at others slower and labored. 
Text figure 2 shows the curve of temperature. It will be noted that 
there were three high periods, the maximum, 109.6 F., being at the 
time of death. The Jow period between 6 and 8 p. m. is correlated 
with a time of comparative quiet, but this is not true of the 3 o'clock 
low, for the spasms were practically continuous during the after- 
noon. The immediate cause of death was respiratory paralysis. 
The autopsy was made immediately. There was clotted blood in 
the trachea and bronchi, and the lungs were congested. The stom- 
