SEA-FISHERIES LABORATORY. 



267 



Similar results were obtained with the neutral-red 

 agar plates. All the "cultures were sterile. 



Six anaerobic milk cultures were also made, with the 

 following results : — 





Enteritidis reaction. 



Oyster 



1 



— 



„ 



2 



Acid and slight clotting. 



>> 



3 



— 



?> 



4 



— 



5? 



5 . 



Acid and slight clotting. 



>> 



6 



— 



This is the first analysis made in which one, at least, 

 of the shellfish examined did not give the typical 

 enteritidis reaction. 



General Remarks. 



The general conclusion that may be drawn from the 

 above series of analysis, then, is that : — 



1. There is excessive pollution of the mussels growing 



on the Egremont mussel bed, by sewage microbes 

 of human intestinal origin ; 



2. The mussels from the Rock Ferry mussel bed are 



also dangerously polluted, but not to the same 

 degree as in the case of the Egremont fish. 



3. The mussels from the Wallasey and Lune areas 



are polluted, though not at present to such a 

 degree as to cause very serious apprehensions of 

 danger to the public health ; 



4. Oysters taken from off-shore fishing giounds are 



unpolluted. 



