400 
.T. T. DUNCAN. 
pecially near the pylorus, as well as the lining of the small intes¬ 
tine, is swollen, and shows red spots or streaks. The surface of 
the membrane is covered with a viscid, tenacious, reddish or 
bloody secretion, which is more or less mixed with the intestinal 
contents, and in the sub-mucous tissue there is a turbid semi-fluid 
exudation. In the large intestine only redness is noticeable, es¬ 
pecially of the coecum. 
“ In the second stao;e the lesions are more characteristic. 
There are numerous patches of yellow exudation most abundant 
near Peyer’s patches, but also seen in the fourth stomach, near the 
pylorus. Peyer’s glands themselves have a perforated appear¬ 
ance, and in the vicinity of these reddish yellow deposits around 
the glands there is a sort of catarrh or secretion from the mucous 
membrane. 
“ In the third stage the exudations or deposits spoken of get 
loose from their perephery towards the centre. They become 
soft, adhere in the centre, their edges floating, till at last they get 
quite free, and are discharged with the excrements. The por¬ 
tions of membrane from which these sloughs have separated are 
red and ulcerated, but the ulcers are not usually deep. 
The other organs of the body do not indicate any specific 
change. There is more or less redness and tumefaction of all 
the mucous membranes. The heart is soft and flabby, the lungs 
normal or slightly congested, the liver dark in color, its ducts and 
bladder full of bile. The mesenteric glands are apt to be swollen, 
and contain a yellowish red exudation, and may attain twice their 
natural size. 
“ Treatment and Prevention .—The curative treatment of this 
disease has failed as a rule. Preparations of chlorine, iron, or 
neutral salts, have been used, and only with success in mild cases, 
and especially in Russian cattle. 
“ The prevention of the disease when it is known to originate 
spontaneously, or to exist constantly, is sometimes attempted ^by 
inoculating the cattle, a practice recommended first during the 
last century, when the disease appeared in Britain.” 
When, however, the disease enters a country like our own, it 
is proper and prudent to kill out the diseased and infected ani¬ 
mals, and prevent contagion by all known means. 
