Studies in Forage Poisoning VI. 123 



being observed. The grain and hay supplied at 5 :30 p. m. were 

 consumed and the animal appeared normal at 6 p. m. Upon 

 autopsy June 1st, 8 a. m., the heart showed marked ecchymoses. 

 Gross changes were not found in the other organs and tissuees. 

 Horse No. 121, weight 760 pounds, was given 2 cc. filtered 

 broth culture of the organism isolated from the silage, in 1000 

 grams of wholesome oats, at 10:30 a. m., June 3rd, 1917. No 

 change was observed in this animal until the morning of the 

 7th. It was then necessary to assist the animal to a standing 

 position. There was observed difficult mastication and an in- 

 ability to drink. During the day approximately 900 cc. of 

 saliva dropped from the mouth into a metal feed box. The 

 animal remained standing thruout the day, but on the morn- 

 ing of June 8th was permanently decumbent and no attempt 

 to eat or drink was noted. Respirations were labored and the 

 feet were rapidly moved in a running motion at intervals. 

 Enuresis was observed thruout the day. Death occurred 

 during the night of June 8th. At autopsy conducted at 8 a. m., 

 June 9th, the following changes were observed: Abdominal 

 wall slightly distended with gas. Abrasions about head, hips 

 and pasterns, self-inflicted in decumbency. Area about ex- 

 ternal genitals soiled with urine. Subcutaneous tissue con- 

 gested in local bruised areas. A large bolus of straw was found 

 in the fauces. Meninges slightly injected. Right lung hypo- 

 static; left lung passively congested. Heart muscle rather pale 

 with small, reddened areas near apex, accompanied by small 

 punctate hemorrhages. Stomach slightly distended with gas; 

 inner wall diffusely reddened. The inner wall of the small in- 

 testine (duodenum) showed local areas of passive congestion, 

 while the remaining lining appeared normal. The inner wall 

 of the caecum was diffusely congested and numerous punctate 

 hemorrhages were visible in the lining. The inner walls of the 

 large and small colon showed a few scattered punctate hemor- 

 rhages. Fibrous filaments from the capsule of the liver were 

 observed. The parenchymatous tissue of the liver, spleen and 

 kidney was not visibly altered. 



