SEA-FISHERIES LABORATORY. 227 
Conway mussel ground, and with the increased sales 
which would certainly result from the confidence, on the 
part of the purchaser, that the mussels bought were free 
from danger, these expenses would be inconsiderable. 
That such a system of quarantining polluted mussels is at 
the present time apparently impossible is due solely to the 
restricted powers possessed by the authorities concerned ; 
and it is surprising that some of the fishermen do not 
attempt to make their trade much more lucrative by 
putting it in force themselves. 
