CONTENTS. 



Page. 



Introduction and review of literature on "oyster infection " 191-198 



Description of Narragansett Bay 198-202 



Locations of tlie leased oyster ground in Narragansett Bay 202-204 



The sources of sewage pollution of Narragansett Bay 205-206 



Bacteriological analysis of water samples from Narragansett Bay 207-218 



Bacteriological analysis of shellfish from Narragansett Bay 218-228 



Comparison of the results of water and shellfish analyses 228-230 



The bacteriology of oysters from uncontaminated sources 230-234 



Bacteriological analysis of oysters from unpolluted sources A\'hich have 



been placed for a time in contaminated water 235 



Conclusions 235-236 



Bibliography 236-238 



190 



