170 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
March 31. 2,700 flounder, on off-shore grounds. 
», ol. 840,000 haddock, 
», ol. 2,320,000 cod, 
April 6. 286,250 plaice, 
5 PG SR COU Ota e 
», 1 12. ~- 90;000 flounder: 
Total 3,318,910 
9) ) 
” ) 
II. LossterR HAtTcHING. 
A temporary stoppage of the gas supply for working the 
engine and pumps, which was due to the necessary re-con- 
struction of the local gasholder, besides proving fatal to 
our stock of fish, &c., prevented us from doing as much 
work at lobster hatching as had been intended. We were 
only able to secure a small number of berried females, and 
that close upon the hatching season. 
Early in July the steamer brought thirteen ege-bearing 
females from Holyhead. On examining the eggs it was 
found that in four individuals the larvee were at the point 
of hatching out, and all the others were well advanced. 
It was therefore not thought advisable to take the eges 
off the swimmerets, so they were left attached, and the 
parents placed in two sets of the Dannevig apparatus, one. 
lobster in each compartment, except the lowest of the 
rows. The movable boxes had previously been taken out, 
excepting those in the bottom compartments, which were 
left in for the purpose of collecting the larvee when they 
were hatched out in the upper compartments and came 
down with the overflowing water. The parent lobsters 
were kept in the dark as much as possible, previous 
experiments having demonstrated that when in the light 
they had a tendency to shake off and destroy their eggs. 
This plan proved satisfactory, so far as keeping the eggs 
