9264 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
‘““Over the tap I tied two nets (Band D), 
the coarser meshed one inside, so that as the 
water ran through, the larger organisms were 
screened off and retained in net 
B, while the smaller passed Coarse net inside 
through and were caught by Fine met outside 
D, the outer net. The ship’s 
carpenter fixed up for me a 
shallow tub placed underneath 
the tap, and into which 
my nets dipped, while, Sa 
from a hole near the 
bottom of the tub a Nets on Tap , Port side manDeck . 
hose pipe was led to Fie. 2. 
the nearest scupper to convey the waste water overboard 
without flooding the deck (fig. 2). 3 
‘On the starboard side of the ship an overflow pipe from 
the top of the tank discharged over the side a little below 
the level of the main deck. I used this 
pipe by tying the two nets, A and C, 
over its open end, the coarser one being 
inside the finer (fig. 3). 
“The supply of water pumped into 
JAS conerenis the tank is so much in excess of what 
Five et outeté is normally used, that during the whole 
voyage, water was pouring freely from 
the four-inch overflow pipe. When the 
ship is rolling, however, the discharge 
eerie becomes somewhat intermittent—sud- 
< den rushes caused by the surging of the 
3 : }__---—-- water in the tank alternating with a 
g———— 
~ Overflow fpeIOLe steady flow. These great rushes 
of water led to the damage of some of 
the specimens collected in the coarser 
