8 CONTENTS 



CHAPTER XXVI 



PAGE 



BACTERIOLOGY OF MILK 130 



CHAPTER XXVII 



FERMENTED MILKS 136 



CHAPTER XXVIII 



BACTERIAL FOOD POISONS 139 



CHAPTER XXIX 



BACTERIOLOGY OP WATER 142 



Pollution to be Guarded Against 142 



Natural Purification of Water 143 



Water-borne Diseases - 143 



Filtration of Water Supplies 144 



Domestic Filters 144 



Purification by Chlorination 145 



Purification by Distillation 146 



Purification by Boiling 146 



Bacteriologic Examination of Water 146 



CHAPTER XXX 



ANIMAL PARASITES 148 



Tapeworms .-'.., 148 



Trichina 148 



Hookworm 149 



Filaria , . . . : 149 



CHAPTER XXXI 



PRACTICE OF DISINFECTION 150 



Boiling Water 150 



Steam 150 



Steam under Pressure 153 



Dry Heat 156 



Chemicals 157 



Preparation of Patient for Operation 158 



To Prevent Spread of Contagious Diseases 160 



