APPETITE JUICE. 



81 



waking animal, only the pi-ocess must be performed unnoticed, and the 

 animal's attention must be diverted from thoughts of food. 



The results of this experiment are striking, and do not in any way 

 resemble the secretion after normal feeding. Some kinds of f< od, for 

 instance bread and coagulated white of the hen's egg, when directly in- 

 troduced into the stomach, do not yield a single drop of juice during the 

 first hour or more afterwards. This holds good both for the .snnill 

 and large stomachs. When a glass rod is introduced into the food 

 contained in the organ it remains dry. Flesh, if introduced at this 



n 1:1 



FIG. 12. Curve of secretion from FIG. 13. The same from 

 the miniature stomach. the main stomach re- 



duced ten times. 



stage, is able to excite a secretion, but the appearance of the juice is 

 considerably retarded. It begins from fifteen to forty-five minutes 

 after the feeding, instead of from six to ten, is under normal circum- 

 stances extremely scanty during the first hour (o c.c. to 5 c.c. instead of 

 12 c.c. to 15 c.c.), and possesses a very low digestive power. 

 Here is an experiment by Dr. Lobassoff : 



400 grrus. of flesh were brought into the stomach. 

 Hour. Quantity of juice. Digestive power. 



1st ... 3'7 c.c. 



2nd . . . 10-0 



3rd . . 'J'2 



4th . 7-0 



5th . . . 5'6 



6th . . 6'6 



7th . . . 7-5 



8th . . . 5-3 



'.ith . . 3-0 



10th 0-2 



2'0 mm. 



1-63 



1-5 



l-ss 



2-25 



- -' n 



2-C.3 ., 



1-88 



2-0 

 5-0 



The secretion began twenty-five minutes after introducing the food. 

 I now a&k you to compare the following tables : 



