CONTENTS OF PART I. 



PAGE 



INTRODUCTION ---------- i 



SECTION 



I. THE CHEMICAL COMPOSITION OF THE PROTEIN MOLECULE - 5 



I. The Monoamino Acids - 6 



II. The Diamino Acids - 15 



II. THE CHEMICAL CONSTITUTION OF ITS UNITS, OR THE DISCOVERY 



AND SYNTHESES OF THE AMINO ACIDS - - 28 



A. Monoamino-monocarboxylic Acids - 28 



Glycine - 28 



Alanine - -30 



Valine - 32 



Leucine - 33 



Isoleucine - - "35 



Phenylalanine - "37 



Tyros ine - 41 



Serine - 44 



Cystine - 45 



B. Monoaminodicarboxylic Acids - 51 



Aspartic Acid - 5 1 



Glutamic Add - 53 



