18 



PHYSIOLOGY OF ALIMEXTATIOX. 



and at no time even approaches the maximum points reached 

 by the carbohydrates or proteins. The protein curve 

 (curve B) possesses the greatest interest. Not only do 

 the proteins begin to pass out of the stomach much later 

 than either fats or carbohydrates (often none of the gas- 



.30 



XB' 



\ 



c\ 







c' 



\ 



1234567 

 Hours after Feeding 



FIG. 3. 



^l=fat; =protein; 5'=acidulated protein; C= carbohydrate; 

 C" = alkalinized carbohydrate. 



trie contents leave the stomach befbre the end of the first 

 hour after a protein meal), but their maximum velocity is 

 not attained until the end of the fourth hour. It will be 

 noticed that these findings harmonize with those of PENZOLDT. 

 What now determines that carbohydrates upon which 



