80 TRANSACTIONS LIVEEPOOL BIOLOGICAL SOCIETY. 



length of time and the resulting effects upon the fish are 

 noted. The proportion of the- fish, chiefly Plaice, Dabs, 

 and Soles, which have recovered is surprisingly large, as 

 will be seen from the particulars given below. The con- 

 ditions were sometimes very different in one experiment 

 from those in another and yet the results were in nearly all 

 cases favourable. The duration of the haul varied from 

 30 to 165 minutes, in some cases the fish were allowed to 

 lie on deck in the sun for 10 minutes before being 

 placed in the tub, while the time they remained in the tub 

 varied from 30 to 180 minutes. In a few exceptional cases 

 where there is a very large mortality this can generally be 

 assigned to some special cause, such as the fish being taken 

 along with a heavy weight of starfish, or with a large 

 quantity of rubbish such as may be got in the net at the 

 bottom of the Horse Channel or outside the Liverpool Bar. 

 We have picked out from the statistics taken on board 

 the steamer by Mr. Dawson the following series of cases 

 which relate to the three edible fish with which the 

 greatest number of experiments have been made — viz., 

 Plaice, Dab, and Sole. Each of these series, and especially 

 the Plaice, contains sufficient examples to allow us to 

 draw definite conclusions. The other fish experimented 

 with are not yet numerous enough to make it worth while 

 recording them. 













Plaice. 













inch. 



Shrimp 



net down 



55 min. 



7 



Plaice from 2\ — 7\. 7 hrs. in tub ; all alive. 



Shrimp 



•j 



65 



? ) 



16 



,, 2-8£. in 1 hr. ; all alive. 



Shrimp 



>> 



65 



" 



130 



,, and Dabs from 3 inch, 25 min. on deck, 

 100 lived. 



Shrimp 



j j 



60 



> » 



39 



2 -6^ inch ; 1 hr. ; all alive. 



Shrimp 

 Fish 



J5 



60 

 90 





100 

 3 



,, 3 — 5. (on deck 30 min.) ; 50 alive. 

 ,,- 7 - 10|. (deadly) ; alive after \ hr. 



Fish 



,, 



105 



,, 



8 



,, 6f-8^. after 75 min., ] dead. 



