LECTURE VIII. 
59 
by the hook and line only, the principal baits, 
-according to Mr. Pennant, being Herring, pieces 
of Sea-fowl, and the shell-fish called Clams, and 
with these are caught fish sufficient to find em- 
ployment for fifteen thousand British seamen, and 
to afford subsistence to a much more numerous 
body of people at home, who are engaged in the 
various manufactures which so vast a fishery de- 
mands. The fish, when taken, are properly cleaned 
and dried, and in this state are sent into every 
part of the European continent. The fishermen 
are well acquainted with the use of the air-bladder 
in this fish, which is usually called the sound; 
and when the fish is first taken, they contrive to 
perforate the sound or air-bladder with a long 
needle, in order to let out its contained air, by 
which means the fish is effectually kept under 
water in their well-boats, and thus brought fresh 
to the place of sale. 
The third Linnaean division or the Thoracic 
tribe is extremely numerous ; in this division the 
ventral fins are situated immediately beneath the 
pectoral ones. Among the most remarkable ge- 
nera may be reckoned the lately instituted one 
