SEA-FISHERTES LABORATORY 



259 



receipt, and the primary cultures made at once. The 

 mussels from Crook Skear were about 2^ inches long, and 

 those from Bazil Point were a little smaller. All were 

 apparently healthy and well nourished. Six fish from 

 each sample were analysed. 



The results of the primary cultures on neutral-red 

 asfar were as follows : — 



Mussel. 



Number o: 



"Colon-like" Colonies. 





1 



General 



fusion of colonies. , 



Mussels 



2 





30 



from 



3 





29 



Crook 



4 





6 



Skear. 



5 



General fusion. 





1 6 





do. 





f 7 





31 



Mussels 



8 





2 



from 

 Bazil 



9 





1 



10 





12 



Point. 



11 





10 





i 12 





23 



In addition to the above, cultures of the water in 

 the shells were also made by the same method. About 

 0-25 cc. of the water was inoculated on the surface of 

 neutral-red agar plates. 



Mussels 13 to 15 came from Crook Skear, and 16 to 

 18 from Bazil Point. 



The results of these latter cultures are as follows : — 



