CONTENTS OF PART II. 



SYNTHESIS. 



PACK 



INTRODUCTION i 



THE CONDENSATION PRODUCTS OF AMINO ACIDS. ANHYDRIDES - 13 



THE LINKING TOGETHER OF AMINO ACIDS -19 



THE POLYPEPTIDES - - 27 



Synthesis - 27 



Method I. -27 



Method II. - 31 



Method III. - 38 



Structure - -46 



Configuration - - 47 



Properties - 51 



I. Solubility, etc. ----- . . gj 



II. Reactions, etc, - - - -52 



III. Derivatives (a) Carbonic Acid - '55 



(6) Amides and Imides - ... 60 



The Action of Enzymes - - 63 



I. Trypsin - ...... .63 



II. Pepsin ..-.-...-66 



III. Other Enzymes - 66 



Applications - 71 



I. Detection of Enzymes - 71 



II. Differentiation of Enzymes - - 74 



