PANCREATIC JUICE AND DIET. 41 



VARIATIONS OF FERMENT-CONTENT IN HOl'ULY PORTIONS OF r.\\ 

 CREATIC JUK'K. ON DIETS OF 100 GRMS. FLESH. 250 GEMS. BREAD, 

 AND GOUC.C. MILK RESPECTIVELY. 



(Sec Fiji. 10, p. -12.) 



FLESH. 



Hour. Proteid ferment. Starch ferment. K-it ferment. 



1st . . 3-5 2'li2 .V2 



2nd . . 2-SS 2-5 .V7 



3rd . . 2-.-> 2-0 1-1 



4th . . 3-88 ... 2-r>:> i-s 



BREAD. 

 1st . . 3.i ... 2-75 2-2 



2nd . . ->-s8 ... 2-3s 2-1 



:!rd . . 3-:, 2-C.2 I'll 



I tli . 3-88 3-12 1-7 



5th . 4-12 3-88 2'1 



(ith . . 4-2.~> ... 1-2.-) 2-:> 



7th . . LH2 ... 4-7:> 3-1 



8th . . <rO ... .VI 2 



MILK. 



1st . . V7:> ... 5-0 14-3 



2nd . . 5-88 ;VO l'J'7 



3rd . . 4-2.~> ... 2-38 7'0 



I tli . 4-5 2-31 .V'.l 



In view of the foregoing facts and of the tendency of all organised 

 tissues (under the influence of forced work or its opposite) to enter into 

 conditions of a more or less stable nature, one might imagine that similar 

 eS'ects follow also in the case of the glands. An investigation of the 

 pancreas with this aim proved fruitful. 



When, in feeding animals, the kind of food is altered, and the 

 new diet maintained for a length of time, it is found that the ferment- 

 content of the juice becomes from day to day more and more adapted to 

 the requirements of the food. If, for example, a dog has been fed for 

 weeks on nothing but milk and bread, and is then brought on to an 

 exclusively flesh diet, which contains more proteid but scarcely any 

 carbohydrate, a continuous increase of the proteid ferment in the juice 

 is to be observed. The capability of digesting proteid waxes from day 

 to day, while, on the contrary, the amylolytic power of the juice is found 

 to be continuously on the wane. Here is an experiment taken from 

 the work of Dr. Wassiljew. A fistula dog was given daily for a month 

 and a half, two bottles (1200 c.c.) of milk and one Russian pound 



