ACTIVITY DURING DIGESTION. 



L>9 



HOURLY VARIATIONS IX IMitKSTIVK 1'OWEK <>F CASTRIC JUK'E 

 AFTER A MEAL OF Ion GRMS. OF RAW FLESH. 



Experiments of 15th and Itltli May l*'.i"> (taken 1'nnn the work of I >r. Lolia>sol'l). 



The same results are given in the form of curves. (Fig. .".) 



THE DIGESTIVE IMMVEU OF PANCREATIC JUICE HOUR P,Y HOUR 

 AFTER A MEAL OF GOO c.c. OF MILK. 



Experiments of 27 Hi and 29th 



r l,s% (from the work of Dr. Wa 



The same is represented in curve form. (-Fig. (!.) 



We are now in a position to appreciate once more the astonishing 

 exactitude of the work : that which is demanded of the glands they 

 furnish each time to a hair's-breadth, no more and no less. And we 

 can also convince ourselves of a fact which is of great importance as a 

 characteristic of gland activity. These organs are capable of producing 

 a secretion of varying composition, with a greater or less quantity of 

 ferment, or with a different proportion of the individual ferments, when, 

 as in the case of the pancreatic juice, several such are present. More- 

 over, other properties of the juice, not alone its content of ferments, 

 are likewise varied. If we examine the figures which deal with this 

 point, and compare them with the hourly quantities secreted, we shall 

 see that the alterations in the concentration of the juice are not deter- 

 mined solely by the rapidity of secretion. We encounter the most 



