SEA-FISHERIES LABORATORY. 119 
samples were sent to the Laboratory at Liverpool. There 
are large series of figures for the following localities :— 
(1) The summer plaice fishery in the Irish Sea between 
Blackpool and Liverpool Bar. 
(2) The summer and autumn plaice fishery outside the 
Mersey Estuary. | 
(3) The winter plaice fishery off the coast of Carnarvon 
and Anglesey. 
There are also data for Morecambe Bay, Carnarvon and 
Cardigan Bays. These series are not so complete as those 
mentioned above, but are probably sufficient. 
Other data necessary. 
Comparatively little is known as to the catching power 
of stake nets. The method is of importance in the Lancashire 
and Western District, and statistics should be obtained. 
The results now available. 
Tables and charts have been prepared with respect to 
the three fisheries noted above. The crude statistics have 
been corrected and theoretical series (most probable series) 
have been calculated to replace the observation series. From 
these corrected statistics and charts the percentages of plaice 
over and less than any specified size, or between any two 
specified sizes, can be obtained, and the probable errors to 
be expected in applying such data for the purpose of legislation 
can also be obtained. 
The effect of the International proposals on Lancashire 
Fisheries. 
If these were adopted it would become illegal to land 
plaice less than 20 centimetres (7? inches) during the winter 
months. This would lead to the rejection (returning to the 
a 
