SEA-FISHERIES LABORATORY 



151 



(7) There is urgent need for investigation into the specific 

 nature of the various kinds of micro-organisms present in 

 faeces and in polluted waters and in shellfish. The natural 

 history of these organisms also imperatively demands investiga- 

 tion. 



APPENDICES. 



I. Reactions of micro-organisms isolated from Mussels. 



Mussels from Piel Shore (6.6.1913). Mean number of sewage 

 bacteria per mussel was 1,510. The characters of 10 

 organisms were as follows : — 









£ 











T3 . 











m 

 O 



ua 



o 



to 



+3 



6 



•a 



o 

 < 



fl 



6 







© 



Morphology. 





o 



■s 



h3 



a 

 o 



A 



3 



o 



M 





43 

 o 







1 



+ 



+ 



+ 



a 



+ 



_ 



+ 



_ 



+ 







Bacilli. 



2 



+ 



+ 



+ 



a 



+ 



— 



+ 



— 



— 







Cocci. 



3 



+ 



+ 



+ 



a 



+ 



— 



+ 



— 



— 







Long slender bacilli. 



4 



+ 



+ 



+ 



a 



+ 



— 



+ 



— 



— 







Bacilli. 



5 



a 



a 



- 



a 



a 



— 



+ 



— 



+ 







>> 



6 



+ 



+ 



+ 



a 



+ 



— 



— 



+ 



— 







5> 



7 



a 



a 



— 



a 



a 



— 



— 



— 



— 







,, 



8 



+ 



+ 



+ 



a 



+ 



— 



+ 



— 



+ 







Short bacilli. 



9 



a 



a 



— 



a 



a 



— 



— 



— 



+ 







Long slender bacilli. 



10 



a 



a 



- 



a 



a 



- 





- 



+ 



o 



Bacilli. 



( 1 0.7.1914). Mean number of sewage bacteria per mussel — 3,900 



1 



+ 



+ 



+ 



— 



+ 



— 



- 



+ 







2 



+ 



+ 



+ 



— 



+ 



- 



+ 



— 







3 



+ 



+ 



+ 



— 



— 



— 



— 



+ 







4 



+ 



+ 



+ 



+ 



— 



— 



+ 



— 







5 



+ 



+ 



+ 



— 



+ 



— 



+ 



+ 







6 



+ 



+ 



— 



+ 



- 



— 



+ 



_ 







7 



+ 



+ 



+ 



+ 



+ 



- 



+ 



+ 







8 



+ 



+ 



+ 



+ 



+ 



— 



+ 



+ 







9 



+ 



+ 



+ 



+ 



+ 



— 



+ 



+ 







10 



+ 



+ 



+ 



+ 



+ 



— 



+ 



+ 







