xiv TABLE OF CONTENTS 



CHAPTER VII 



PAGE 



Significance of the Presence of the Colon Group in Water . 140 



CHAPTER VIII 



Varieties of Colon Bacilli and Their Special Significance. 174 



CHAPTER IX 

 Other Intestinal Bacteria 201 



CHAPTER X 



The Significance and Applicability of the Bacteriological 

 Examination 215 



CHAPTER XI 

 Bacteriology of Sewage and Sewage Effluents 228 



CHAPTER XII 



Bacteriological Examination of Shellfish 244 



Appendix 265 



