70 ; REPORT—1874. 
Mucous membrane :— 
Jejunal loop swollen. 
Tliac » pale, moist. 
Experiment 51.—Excision of semilunar ganglia. Both semilunar ganglia 
were excised. One loop of jejunum near the duodenum was isolated. When 
the animal was killed about four hours afterwards, and the intestine examined, 
it was found to be normal. 
The loop contained about 1 c. ¢. of fluid. 
Experiment 52.—Extirpation of semilunar ganglia. Both semilunar gan~ 
glia were excised, and one piece of small intestine 10 c. c. long isolated. 
About four hours after the cat was killed by a blow on the head. 
On examination the duodenum was normal. 
The jejunum and ileum were shortened and thickened. 
The loop, originally 10 centims. long, had shortened to 7-5 centims. On 
pressing any part of the jejunum or ileum strongly between the fingers the 
part contracted to half its former diameter, but there was no peristaltic propa- 
gation of the contraction. On cutting away the intestine from the mesentery it 
lengthened, the loop again becoming 10 centims. long. When any part of the 
intestine was now pressed after its separation from the mesentery, the con- 
traction occurred most strongly at the point of pressure, but it was also pro- 
pagated to the adjoining portions of intestine. 
The mucous membrane of the whole intestine was moist and bile-stained. 
The loop contained about 1 ¢. e. of clear fluid. 
Experiment 53.—Excision of semilunar ganglia ; division of splanchnics. 
The splanchnics, large and small, were divided on both sides, and both semi- 
lunar ganglia completely excised. Four hours afterwards the eat was killed 
by a blow on the head. 
There was no hyperemia of the intestine, which was, on the contrary, 
rather pale. The mucous membrane was pale and dry. 
Experiment 54.—Excision of lower two thirds of right semilunar ganglion ; 
division of right splanchnic, with the exception of one or two small commu- 
nicating branches with left splanchnic and branches to suprarenal capsule. 
Two loops of intestine isolated, one at upper end of jejunum; and the other 
at the lower end of ileum. 
On examination both loops were empty. 
Mucous membrane in both normal in colour, dry, biliary matter covering 
its surface. 
Experiment 55.—Excision of right semilunar ganglion; division of nerves 
passing from it around the blood-vessels. Three loops of intestine isolated— 
one at upper end of jejunum, one at ileo-cecal yalve, and one midway 
between the two. 
On examination all the loops were empty. Mucous membrane normal 
in all. 
Experiment 56.—Excision of the left semilunar ganglion and division of 
nerves passing from it around the vessels. 
_ Three loops of intestine isolated—one at upper end of jejunum, one at 
ileo-cxecal valve, and one midway between the two. 
; a examination all the loops were empty. Mucous membrane normal 
in all. 
All the loops were the same length when tied, viz. 10 centims. 
