SEA-FISHERIES LABORATORY. 



153 



Mussels from Ribble Channel (8.10.1913). Mean number of 

 sewage bacteria per mussel = 21,000. Reactions of 10 of 

 these organisms as follows : — 









u 











-a . 











8 



O 



o 



S3 



o 



© 



09 



o 



4» 



O 



c3 

 1-3 



© 



© 

 P 



© 



'3 



o 



< 





©" 



'o 



G 



M 



m eg 

 © J4 

 Mm 



o 2 



>> 



43 



43 

 O 



a 



© 



1 

 O 





1 



— 



+ 



_ 



_, 



_ 



_ 



+ 



- + 









2 



+ 



+ 



— 



— 



+ 



— 



+ 



— ; — 









3 



+ 



+ 



+ 



+ 



+ 



— 



— 



- + 









4 



+ 



+ 



+ 



+ 



+ 



— 



— 



+ 



+ 









5 



+ 



+ 



— 



— 



+ 



— 



+ 



— 



— 









6 



+ 



+ 



— 



— 



+ 



— 



— 



— 



— 









7 



+ 



+ 



— 



— 



+ 



— 



+ 



— 



— 









8 



+ 



+ 



— 



— 



+ 



— 



+ 



— 



— 









9 



+ 



+ 



- 



- 



+ 



- 



+ 



- 



+ 









10 



11 



12 



The above are organisms from the mussels. 



+ 



+ 



- 



— 



+ 



- 



+ 



- 1 - 







+ 



+ 



+ 



+ 



— 



— 



+ 



+ - 







+ 



+ 



+ 



- 



+ 



- 



- 



- - 







The organisms 10 to 12 were isolated from the water of the Channel. 



Roosebeck Scar mussels kept in large tank in running sea-water 

 (5.1914). Mean number of sewage bacteria per mussel = 590. 





o 



O 



3 



i 



43 



i 



i 



© 



d 



c3 



o 



©' 



43 



*© 



A 



©' 



43 



•2 

 o 



< 



d 



13 



5 

 l-H 



d 



o 



a 



Vosges and 

 Proskauer. 



Motility. 



Morphology. 



1 



2 

 3 



4 

 5 



6 

 7 

 8 

 9 

 10 



+ 



+ 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 



+ 



+ 

 + 

 + 

 + 

 + 

 + 

 + 

 + 

 + 



+ 



+ 

 + 

 + 



+ 

 + 



+ 

 + 



+ 



1 a 

 + 



~ 



+ 

 + 



+ 

 + 



+ 

 + 



+ 



+ 



+ 



+ 



+ 



+ 



Long bacilli. 



Very long bacilli. 



Long bacilli. 



Short bacilli. 



Very short bacilli, or cocci. 



Short bacilli. 



Very long bacilli. 



Long bacilli. 



Very short bacilli. 



Very short bacilli. 



