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MR. GARROD ON THE VISCERAL ANATOMY [Jan. 21, 



unchanged to within half an inch of the ileo-csecal valve, where they 

 cease. Their great number (over 1300), extreme simplicity, and 

 uniformity is very striking ; they project nearly | inch into the 

 intestine. Many are continuous right round the tube ; but where 

 two approach one another, as is frequently the case, an intermediate 

 one frequently ceases after having made nearly a complete circle. A 

 few are to be seen extending for only about an inch ; but most are 



Fig. 4. 



Mucus membrane of the small intestine, natural size, showing the valvulse 



conniventes. 



either that size or considerably longer. There are no traces of any 

 triangular or cylindrical papillae throughout the whole length of the 

 intestine. 



The bile and pancreatic ducts open on a papilla situated a foot 

 from the pylorus, among the valvulse conniventes, on the mesenteric 

 border of the gut. This papilla is conical and rounded, projecting 

 half an inch, with a single orifice at its apex. There is a second 

 smaller orifice for a duct two inches further on, between two of the 

 valvulse and on one side of the main one. 



No Peyer's patches could be found ; and in their usual situation 

 there was no irregularity of the valvulse conniventes. 



