DISEASES OF THE HOG. 225 
cases of hog cholera all the organs of the body are 
more or less red spotted, caused by hemorrhage of 
a greater or less extent. The extravasation of blood 
‘is found most abundant in the lymphatic glands 
_ and the serous membrane of the chest and abdo- 
_men. The cases vary very much, sometimes the in- 
testines, both outside and inside, the surface of the 
lungs, liver, heart and kidneys will be covered with 
an exudation of blood. On the internal surface of 
the large intestines in nearly all cases of hog chol- 
era and swine plague there will be found a num- 
ber of tufts which receive the name of ulcers; they 
are elevations of a dirty gray or sometimes a yel- 
lowish gray; they are more or less hard or tough 
when cut with the knife; their surface is tufty, 
‘somewhat like the top of a wart on the human 
hand after it has been soaked in water for a while; 
' this surface is covered with a yellowish substance, 
which is easily removed by scraping off with a 
knife. These growths extend in some cases through 
the intestine. In most cases the lining of the in- 
testine and its walls are black in the vicinity of the 
growths. These tufts may be single or a number 
of them may be attached to each other, covering 
a surface of from one to three inches in length; 
they are usually found in the cecum, upper half of 
the colon and on the ileo-cecal valve. Very often 
the small intestine is found more or less inflamed 
and the glands enlarged; in some cases the spleen 
is enlarged; the lungs are usually more or less im- 
plicated, especially is this the case in swine plague. 
I have found some cases of swine plague in which 
