viii CONTENTS 



Inorganic Salts .' 44 



Gases 45 



Enzymes or "Life" in Mn;K 45 



The Thermal Death-Point of Milk Enzymes 46 



Colostrum 47 



Colostrmn Corpuscles 48 



Composition of Colostrum 49 



Function of Colostrum 49 



Milk of Different Animals . . . . , 49 



Summary of the Differences between Cow's Milk and 



Woman's Muuk 52 



m. DIRTY MILK 



Amount of Dirt 57 



How Ordinary Diet may be Harmful 57 



Taking out the Dirt 69 



The Dirt Test 61 



The Microscopic Examination of Milk 62 



Bacteria in Milk 68 



Where the Bacteria come from 70 



The Initial Contamination of Milk 71 



The Significance of the Number of Bacteria in Milk ... 74 



Legal Standards 77 



The Kinds of Bacteria in Milk 78 



LBuqpcY^BS-iN Milk 80 



The Germicidal Property of Milk 81 



Why Milk spoils and how 82 



Colored Milk 85 



Slimy or Ropy Milk 86 



Bitter Milk 86 



Alcoholic Fermentation of Milk 87 



The Excretion of Drugs and Other Substances in Milk 87 



