«> CONTENTS 



CHAPTER XXVI 



PAGE 



Bacteriology of Milk 134 



CHAPTER XXVII 

 Fermented Milks 140 



CHAPTER XXVIII 

 Bacterial Food Poisons 143 



CHAPTER XXIX 



Bacteriology of Water 146 



Pollution to Be Guarded Against 146 



Natural Purification of Water 147 



Water-borne Diseases 147 



Filtration of Water Supplies 148 



Domestic Filters _ 148 



Purification by Chlorination 149 



Purification by Distillation 150 



Purification by Boiling 150 



Bacteriologic Examination of Water 150 



CHAPTER XXX 



Animal Parasites and Vermin 152 



Tapeworms 152 



Trichina 152 



Hookworm 153 



Filaria 153 



Pediculosis 153 



CHAPTER XXXI 



Practice of Disinfection 154 



Boiling Water 154 



Steam 155 



Steam Under Pressure 157 



Dry Heat 160 



Chemicals 161 



Preparation of Patient for Operation 162 



To Prevent Spread of Contagious Diseases 164 



Disinfestation 169 



