310 



REPORT — 1876. 



SUMMAEY OF EXPERIMEJ^TS *. 



FiEST Series. 



No. 



3J. 



4. 



Lesion. 



Excision of both semilunar gan- 

 glia and of the superior mesen- 

 teric plexus. Two 4-inch loops 

 ligatured at beginning of je- 

 junum and at end of ileum. 



Same as 1 . Superior mesenteric 

 artery accidentally wounded 

 and ligatured. Diarrhoea before 

 end of operation. Loops empty 

 before ligature. 



Same as 1 



Mesenteric plexus alone excised. 



Same as 4. Three 4-inch loops 

 in jejunum ; middle and lower 

 ileum tied. 



Hours. 



4* 



3-4. 



Result. 



Upper loop empty ; mucous mem- 

 brane dry. Between the loops 

 20 c. c. of mucus and serum 

 without bile or blood ; mucous 

 membrane moist. Lower loop 

 contained a little of the same. 

 Serous coat congested. 



Cat vomited shortly before it was 

 killed. Peritoneal congestion of 

 intestines. Duodenum, mucous 

 membrane congested, hemor- 

 rhage into the gut. Upper 

 loop, 5 c. c. of pale ojjalescent 

 fluidt. Between the loops 40 c. c. 

 of similar but rather thicker 

 fluid, with a few streaks of blood 

 which was accidentally niixed 

 with it. Lower loop, 8 c. e. of 

 thin glairy fluid. Mucous mem- 

 brane congested throughout. 



L'^pper loop, 8 c. c. of bile-stained 

 fluid. Between loops, 45 c. c. of 

 tui-bid fluid. Lowci- loop, 8 c. c. 

 of clear glairy fluid. Mucous 

 membrane normal. 



All the loops empty, except a tape- 

 worm in the ileum. Mucous 

 membrane pale. [On dissection, 

 it was found that the operation 

 had been ^ery imperfectly per- 

 formed, so that the greater part 

 of the plexus was intact.] 



Duodenum partly contracted, with 

 some fluid contents. Upper loop, 

 7 c. c. of fluid. Middle, .5 c. c, 

 with small tapeworm. Lower, 

 4 c. c. (darker) and a tapeworm. 

 Intestine injected outside 

 throughout ; mucous membi-ane 

 in upper loop injected, in the 

 others normal. 



* The animals used throughout were cats, and the anajsthetic employed was chloroform 

 t The laboratory assistant, who had been a soldier in India, remarked that this fluid 

 was just like the i-ice-water stools he had seen in cholera epidemics. 

 I This cat was white, witli grey eyes, and was deaf 



