1880.] Hydrolytic Ferments of Pancreas and Small Intestine. 403 



the small intestine, either for equal weights or for equal areas of the 

 tissue. 



We have satisfied ourselves of the truth of these statements by 

 numerous experiments. 



The following results exhibit the relative action upon maltose and 

 cane-sugar of (1) the agminated Peyer's glands of the jejunum, and 

 (2) of the adjoining portions of the jejunum containing, besides the 

 glands of Lieberkiihn, only solitary Peyer's glands. The experiments 

 were conducted under exactly similar conditions, 5 grms. of the 

 dried and finely divided intestine acting in each case upon 3 grms. of 

 the carbohydrate dissolved in 100 cub. centims. of water. 



1. — Action of agminated Peyer's Glands of the Jejunum upon 

 Cane- Sugar and Maltose. 





Percentage of carbohydrate hydrolysed. 





1| hours at 

 40°. 



3| hours at 

 40°. 



After 16 hours 

 in the cold. 



5 hours more 

 at 45°. 



Cane-sugar . . 



9 3 

 15-4 



18-4 

 33 9 



24-6 

 52 -2 



26 7 

 74-3 



2. — Action of the Jejunum, without agminated Peyer's Glands, 

 upon Cane- Sugar and Maltose. 





Percentage of carbohydrate hydrolysed. 





1| hours at 



3| hours at 



After 16 hours 



5 hours more 





40°. 



40°. 



in the cold. 



at 45°. 



Cane-sugar . . 



10-9 



13-6 



21 -7 



24 *4 





4-2 



26-6 



38-6 



57-9 



These experiments, in conjunction with those upon cane-sugar, 

 described at p. 399, prove that the activity of the small intestine upon 

 saccharose is slow and incomplete, when compared with its power of 

 converting maltose into dextrose ; and also that, while the conversion 

 of maltose into dextrose under the action of the intestine ferment is 

 as continuous and uninterrupted a process as is its conversion by 

 dilute sulphuric acid, the invertive action upon cane-sugar is decidedly 

 limited, the action being either arrested or proceeding with extreme 



