80 



THE WORK OF THE DIGESTIVE GLANDS. 



The secretion from both cavities also came to an end at the same 

 time. 



This experiment proves to us, first, that the main and miniature 

 stomachs, work in perfectly parallel manner with each other. The 

 beginning, the end, and the intermediate variations of the secretion 

 correspond in both cases. Secondly, the digestive power of the secre- 

 tion coincides in both, and is the same which was observed in the 

 so-called sham feeding. It has here remained at the same height till 

 the cessation of the secretion, without falling to the lower value 

 which we observed from the beginning of the second hour onwards, 

 after normal flesh feeding. 



This w.is also confirmed later, when we performed an le.sophago- 

 torny on the dog, and carried out sham feeding in typical form. Here 

 follows one of these experiments taken from Dr. Lobassoff's article. 



The first drop of juice appeared from both cavities during the 

 sixth minute after commencing the feeding which was kept up 

 for half an hour. The further course of the secretion was as 

 follows : 



The secretion came to an end in both stomachs at the same time. 



The above is represented in curves in Figs. 12 and lo, the scale on 

 which that for the main stomach is drawn being ten times less than 

 that for the small. As you see, the progress of secretion is identical 

 in both. 



The existence of a fistula leading into the large stomach affords 

 us also the possibility of performing an experiment upon our dog 

 which is exactly the converse of the sham feeding experiment, and 

 which constitutes a real experimentuni crucis. While in sham feeding, 

 we had only, so to speak, the beginning of digestion before us, we are 

 now able in our cross experiment to start at the continuation of this 

 beginning. For this purpose it is only necessary to bring the food into 

 the stomach through the fistula, without attracting the dog's attention. 

 Since in this experiment it is above all necessary not to excite the dog's 

 appetite, it is best to carry out the procedure on the sleeping animal. I 

 may add at once, however, that the same result can be obtained on the 



