126 



Bulletin No. 208. 



timothy hay and water, all of which were controlled by horses 

 used on the Experiment Station farm. On the morning of May 

 17th, 1917, at 7 a. m., No. 118 ate only a portion of the grain 

 and hay. No change was noted in animals Nos. 1019, 1020 and 

 1021. At 10 a. m. No. 118 could not stand. In a sternal posi- 

 tion the animal used the front feet quite freely, yet in attempt- 

 ing to arise a marked weakness in the loins and posterior limbs 

 was noted. At 1 p. m. the tongue was pendulous and protrud- 

 ing from the mouth, and the animal lay quite helpless. Death 

 occurred at 3 :30 p. m., May 17th. Fig. 7 was photographed at 

 3 :45 p. m. on May 17th. The serum-treated animals, Nos. 1019, 

 1020 and 1021 appear in the rear. These three animals re- 

 mained healthy and were released on June 17th (Chart 5). 



CHART 5. 



Autopsy conducted on May 17th showed the following 

 anatomic alterations in mule No. 118: Tongue protruding; no 

 noticeable skin or subcutaneous bruises. Meninges injected; a 

 few scattered petechial hemorrhages on pleura and diaphragm ; 

 lungs slightly congested. Punctate hemorrhages on epi- and 

 endocardium. The outer wall of the duodenal section of small 

 intestine was slightly injected, and in the inner wall small areas 

 of congestion were found. The duodenal mesentery was slightly 

 injected. Liver, grayish yellow tinge; acini very prominent; 

 numerous fibrous capsular filaments. Other gross changes were 

 not observed. 



