TABLE OF CONTENTS. 



PAGE 



INTRODUCTION 1 



THE CARBOHYDRATES 1 



Starch 4 



Dextrin 8 



Glycogen 8 



Cellulose 11 



Glucose 12 



Lactose 10 



Sucrose 20 



Maltose 21 



Pentoses 21 



THE FATS 23 



The Lecithins 30 



THE PROTEINS 32 



Albuminous Substances 34 



Albumins 39 



Globulins 44 



The Albuminates 46 



Proteoses and Peptones 48 



Fibrin 51 



Coagulated Albumin 51 



Compound Proteins 51 



THE MUCINS 52 



The Nucleoalbumins 53 



The Nucleins 56 



Haematogen 58 



The Albuminoids 58 



Collagen 58 



Gelatin 59 



Elastin 61 



Keratin 61 



FERMENTATION 62 



THE SALIVA 66 



THE GASTRIC JUICE 71 



Gastric Digestion 75 



Methods of Testing Gastric Juice 81 



(vii) 



