480 Abstract Report of A'jricultural Discussions. 



Tlie ulcerated patclies wliicli occiu* in tlic small intestines are few 

 in niunber, and for tlie most part exhibit the disease in a much 

 slighter form. Sometimes there are only two or three altogether, 

 which in that case arc generally seated in the "large Peyer's i)atch, 

 which in the pig, as in man, lies immediately above the ileo-cfecal 

 valve. Sometimes, in addition to these, some fifteen or twenty more 

 may be counted, variously distributed through the length of the gut, 

 but for the most jiart occupying its middle third. 



In the intestine, the disease seems to originate, chiefly, in the 

 isolated follicles. Peyer's i)atchcs, which occur only in the small 

 intestine, often either escape altogether, or arc only affected in a 

 partial and quite irregular manner. Sometimes, in the immediate 

 neighbourhood of an ulcer seated on an isolated follicle, a Peyer's 

 patch may be seen in the normal state ; at other i)oints, one end of a 

 patch is affected by the disease, Avhile the other remains entirely free 

 from it. 



The condition of the oesophagus I have not investigated. Judging 

 from what occiu:s in human typhoid it is more than probable that this 

 tube participates in the disorder. 



I have remarked, that the only perfectly characteristic morbid 

 appearances attaching to this malady arc found in the intestinal 

 canal. It is wortli noting that the !:;})lcen, wJiich in some stages of 

 human typhoid fever imdergoes such a marked modification, presents 

 here no perceptible deviation from its normal state. The same may 

 be said of the liver, mth this excei^tion, that in one or two instances I 

 have seen a thin layer of adventitious deposit occm-ring in irregular 

 patches immediately under the peritoneal coat of the organ. More 

 than once I have observed a similar deposit under the pleura also. I 

 have not had time to subject this dcjiosit to a minute examination ; 

 but its colour and general appearance would suggest the idea of its 

 being identical with the adventitious deposit which precedes the stage 

 of iilceration in the intestine. 



Various degrees of passive congestion and of pleuropneumonia are 

 the only other morbid changes I have found in the lung. I must 

 confess, however, that I have not examined this organ with quite the 

 same care which I have bestowed on the intestinal canal. 



In one case there were several oimces of limpid serum in the 

 pericardiiun ; but, with this exception, the heart presented nothing 

 abnormal. 



The kidneys exhibited appearances worthy of note. In all the 

 cases which I have examined, these organs were a good deal con- 

 gested — more variegated in colour than in the healthy state ; and, in 

 some instances, their surface was thickly beset by ecchymoses. These 

 alterations must be familiar to most as a frequent attendant on malig- 

 nant fevers, and as generally associated with acute albuminuria in the 

 living subject. 



For want of time, the nervous centres were~not examined in any 

 instance.] pi) 



Now these are all the facts that have come immediately within my 

 own knowledge. In what I have to add, depending as it does more 



