BUREAU OF ANIMAL INDUSTRY. ' 485 



cated slight peritonitis. Mesenteric glands enlarged and congested, 

 mesenteric vessels dark, gorged with blood ; lungs and heart evidently 

 intact ; the bronchi contained a few lung worms ; spleen and liver not 

 noticeably changed. In examining the intestinal tract a large area of 

 the mucous membrane of the stomach was intensely reddeuecf, some 

 places of a bright scarlet, others duller. The ileum was congested; no 

 ulcerations visible. The ctecum and large intestine were intensely red- 

 dened. For some distance from the valve the mucous surface was stud- 

 ded with small discolorations which on close examination were seen to 

 bo depressions of commencing ulcerations. About the ileo-ca3cal valve 

 there were small masses of yellowish matter plugging the distended 

 mouths of the flask-shaped glands. In pig 103 tha post mortem appear- 

 ances were as follows : The major part of the lungs was highly congested, 

 a considerable quantity of a pale reddish liquid in both pleural sacs. 

 The surface had a mottled appearance due to islands of dark red color 

 surrounded by paler tissue; no hepatization; lung- worms present; stom- 

 ach and small intestine not affected ; echinorJiynclii attached to its 

 walls ; ascarides extending up into bile-ducts. Large intestine and ca3- 

 cum intensely congested as with No. 95 ; a large patch of ulcerations 

 about the valve; a few nodular swellings, probably enlarged follicles. 

 The lymphatic glands of the abdominal cavity in general tumefied, pur- 

 ])lish. We felt no hesitation whatever in pronouncing both as ha\ang 

 liad swine jdague. 



Pig 104, which had been inoculated with the second vaccine only, but 

 which had received a iargo dose of the same (about 2'='=) was found dead 

 November 7, and examined immediately. There was no discoloration of 

 the skin perce])liblo. The superficial lymphatic glands of the groin 

 somewhat enlarged and slightly reddened. A small quantity of serum 

 in the abdominal cavity. Dark bluish protuberances and whitish spots 

 on the small intestine indicated the presence of echinorhynchi. The 

 hings were much congested ; the bronchi filled with lung worms; some 

 ascarides in the stomach. Lesions characteristic of swine plague were 

 not found in the large intestine. 



Pig U-l, which had received five drops of the first and about three drops 

 of the second vaccine, died very suddenly on the morning of November 

 3 8. It had been apparently well a few hours before death. The post 

 mortem examination was made within an hour after death. The skin 

 of the ears, about the vulva, and along the middle line of the abdomen 

 covered with a red blush. Isolated red patches on the inner aspect of 

 the limbs and on the vertical aspect of the neck. The inguinal glands 

 beneath the skin enlarged, pale; on incision much serum flowed. The 

 subcutaneous fatty tissue over the lateral aspect of the abdomen was 

 dotted with numerous punctiform extravasations. In the abdominal 

 ciivity the large intestine presented a very stnking ap})earauce. Be- 

 neath the peritoneal coat, throughout its whole extent, it was covered 

 with innumerable blood extravasations, varying from a mere dot to ob- 

 long patches about one-eighth to one-quarter of an inch long. Tlie spleen, 

 somewliat enlarged, was dotted with numerous, slightly-elevated, dark 

 spots. The stomach, along the lesser curvature, was sprinkled with ec- 

 chymoses. The peritoneal cavity contained a moderate quantity of 

 serum. The right heart was filled with serum, darkened by suspended 

 corpuscles; the left quite empty. On the auricles a number of minute 

 red dots were present. The lungs were but slightly congested. Over 

 the surfiiceof both were scattered numerous dark red patches about one- 

 eighth of an inch in diameter. On section these were found to corrc 

 spend to dark hepatized lobules beneath. A few lung worms present. 



