CONTENTS. 



Introduction. 



Pa<;e 



5 



Chapter I. — Milk and Milking 7 



II. — The Origin of Bacteria in Milk 25 



III.— Decomposition of Milk. . 33 



IV. — Preserving Milk by Chemicals. 37 



V. — Preservation by Cooling 44 



VI. — Preservation by Heating 48 



VII. — Pasteurization. . 52 



VIII.— Sterilizing <>3 



IX.— The Mortality of Infants . 7S 



X.— Artificial Mother's Milk; Normal 



Infants' Milk 99 



XL— The Normal Dairy 130 



XII. — Conclusion . . . ... 154 



