16 SHELLFISH CONTAMINATION FROM SEWAGE-POLLUTED WATERS. 



summer cottages are springing into existence, the nearest villages 

 and cities are rapidly encroaching upon the oyster territory, and 

 the community does not concern itself especially about the disposal 

 of sewage. Even the oystermen themselves are guilty of contrib- 

 uting their quota of contamination by dumping wastes overboard 

 from boats or by depositing them in near-by waters through the 

 medium of privy vaults located in their shops. These closets are 

 almost invariably placed where nature is depended upon to remove 

 the accumulating wastes, which are later carried out by the waves to 

 some oyster float or bed near by. 



BACTERIOLOGICAL RESULTS ON SHELLFISH AND SEA WATER. 



* 



The following tables show the bacteriological results obtained on 

 oysters and clams in the shell and on the sea water covering the beds 

 from which they were taken: 



TABLE 1. Results of the bacteriological examination of shell oysters. 

 COLLECTED FROM LOCALITIES REASONABLY FREE FROM EVIDENCE OF POLLUTION. 



COLLECTED FROM GROUNDS SHOWING PROBABLE POLLUTION. 



