42 THE WORK OF THE DIGESTIVE GLANDS. 



(410 grms.) of white bread. The hourly quantities of juice for the first 

 six hours after the meal had the following digestive powers: 



For the prcteid ferment in mm. Ceo. <.>:>.">, 0'25, 0'25, 0'25 ; 

 For the starch ferment in mgms. of sugar, 8' 13, in. KV1S. l.~>. 



Afterwards the dog was fed daily on a pound and a half of flesh. Even 



I i 



HOURS 1 11 ill IV II III IV VVI VHVIIIlim IV 



FIG. 1<>. The ferments of pancreatic juice on diets of flesh, 

 bread, and milk respectively. If read horizontally, the 

 curves represent the same ferment on different diets ; if 

 in a vertical direction, the different ferments on the 

 same diet. 



after the lapse of three clays, one could see that the pruteid ferment 

 tended to increase, while the starch ferment declined. On the twenty- 

 third day of the flesh diet, during which time the juice continuously 

 altered in the direction mentioned, we obtained the following results, 

 likewise for the first six hours after feeding : 



For the proteid ferment, l - r>, !'<>, l - r>. 3'.~>, ;-}">, 3'0 ; 

 For the starch ferment, 4, 3, 3, 7, 4, <>. 



To this must be added, that in this second oase the starch ferment was 

 allowed to act for twice as long as in the first case. 



Although the result of the foregoing experiment is apparently 

 indubitable, it is possible the objection may be raised that the quantity 

 of ferments produced in both cases is the same, but that it had merely 



