CONTENTS 



Chapter I. PAGE 



The Proteins and their Derivatives, the Amino 

 Acids 1 



Chapter II. 



Digestion, and Bacterial Activity in Relation 

 to the Amino Acids 28 



Chapter III. 



The Absorption of Proteins and Amino 

 Acids 46 



Chapter IV. 



In What Form Does Ingested Protein Enter 

 the Circulation? 58 



Chapter V. 



Theories of Protein Metabolism ... 81 

 Chapter VI. 



The Further Fate of Amino Acids . . 99 

 Chapter VII. 



The Amino Acids in Relation to the Specific 

 Dynamic Action of Proteins . . . 120 



Chapter Fill. 



The Amino Acids and Simpler Nitrogenous 

 Compounds as Foodstuffs . . . 126 



Chapter IX. 



The Specific Role of Amino Acids in Nutrition 

 and Growth 136 



Index 159 



