no SWINE ERYSIPELAS 



hood of Peyer's patches. It is infiltrated with blood and 

 sometimes shows superficial scabs. Less frequent!}', circum- 

 scribed parts of the mucosa of the caecum and of the anterior 

 parts of the colon suffer from a diptheritic affection. 



The solitary follicles and Peyer's patches appear as prom- 

 inent raised patches. Sometimes they are infiltrated with 

 blood and surrounded by a reddish band. There is ulceration 

 and cicatrisation of the solitary and agminated follicles. The 

 mesenteric glands become more swollen than the other glands 

 of the body, of a dark red color, and show softening. The 

 surface of fresh sections is dun-colored with interspersed dark- 

 red areas. The paraglandular tissue is hyperaemic, and infil- 

 trated with blood. 



The kidneys are enlarged, the cortex of a graj'ish-red and 

 the medullary portion of a verj' dark-red color. Frequently 

 catarrhal nephritis occurs as a complication. 



The acute swelling of the spleen arises in consequence of 

 au acute hyperaemia with an increase of the cellular constitu- 

 ents of the spleen in which case the organ is enlarged, but not 

 softened as in anthrax. The pulp is of a purple color, moder- 

 ately soft and free from haemorrhages. 



There is cloudy swelling and enlargement of the liver. 

 The surface of sections has a greyish-brown color, and the 

 acini are widened. The muscles are grey in color, soft, flac- 

 cid, watery, glistening and sometimes they are sprinkled with 

 haemorrhages. They give the general appearance of boiled 

 flesh. The myocardium shows similar spotted changes, and 

 haemorrhages beneath the endocardium. 



In the abdominal and thoracic cavities and pericardium, 

 there may be found small quantities of an orange-colored, 

 clear fluid, which may be mixed with flakj' coagula. Puncti- 

 form haemorrhages often appear under the serous membranes, 

 especiallj' on the auricles. Many English veterinarians regard 

 the occurence of more or less luxuriant vegetations on the 

 valves of the heart to be so frequent as to be almost diagnostic. 

 It would appear from the literature that this endocarditis is 

 not nearly so common in continental Europe. Severe haemorr- 

 hages in the brain and in the dorsal and lumbar portions of 



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