an extraordinary Introfufceptioti. 30 7 
was contained within the' figmoid flexure. A finger intro- 
duced into the anus felt a round fubftance in the rectum* 
with an opening in the middle, not unlike the os tineas. This 
fubftance did not adhere, the finger pafling round it freely, be- 
tween it and the internal coat of the reftuim The liver, the 
urinary bladder, and fmall inteftines, were the remaining parts 
which firft appeared when the parietes of the abdomen were 
turned back. 
Upon looking for the omentum, a portion of it only W'as 
found attached to the ftomach, the remaining part evidently 
pafled within the band into the figmoid flexure. 
The ftomach was tied much clofer to the fpine than natural* 
by the difplacing of the omentum and great arch of the colon. 
The gall bladder was as large as that of an adult, and was full 
of thin bile, but without obftrudlion to its paflage into the 
duodenum. 
The general external appearance of all the inteftines was 
natural, except flight inflammation in fome places. 
The cavity of the abdomen alfo contained more than half 
an ounce of thin pus ; and on the right fide were two liga- 
mentous peritoneal fubftances, very much on the ftretch ; one 
formed by an extenfion of that part of the peritoneum called 
ligamentum * coli de&trum ; the other at the place where the 
colon is connected to the peritoneum over the right kidney. 
As the further inveftigation of this uncommon difeafe re- 
quired particular attention, I cut out all the parts connedted 
with it, bringing away the whole figmoid flexure of the colon, 
* I have obferved, that in fome children the caput coli is naturally connected 
much more loofely than in others. It is probable, that the prefent cafe was one 
of thofe. 
s f 3 
with 
