figure in any author. A modern writer * wiil have 
it to be the mefentery of the fifh ; but the ce- 
lebrated Gouan, the lateft, and peii^ps the noft 
accurate author on i&hyokgy, gives a more fatif- 
factory and comprehenfive account of it, under the 
title of t La Vejicule Acrienne. Yet, if the identity 
of the air-bladder, and what, in Englifh, is called 
found, be admitted, which feems particularly afcer- 
tained in a certain genus, viz. the Afellus of Wil- 
lughby, or Gadus of Artedi, his defcription is a little 
erroneous with refpedt to its termination near the 
Vefica urinaria ; for in cod and ling, the continuation 
of the found, or air-bladder, may be eafily traced 
from thence to the laffc vertebra adjoining the tail. 
The founds, which yield the finer ifinglafs, confifl 
of parallel fibres, and are eafily rent longitudinally ; 
but the ordinary forts are found compofod of double 
membranes, whole fibres crofs each other obliquely, 
refembling the coats of a bladder j hence the former 
are more readily pervaded and divided with fubacid 
Doffie, in Memoirs of Agriculture. 
f La Veficule acrienne eft un fac membraneux compofe de deux 
ou trois envelopes, qui fe feparent facilement, & rempli d’air, a 
la faveur duquel les poiiTbns fe foutiennent dans 1’eau. 11 eft 
pour l’ordinaire iitue en long, enferme dans le peritoine, place 
entre'les vertebres & 1’eftomac. Sa longueur depend de la 
capacite du bas ventre, & de la grandeur du poiflon : il eft tantot 
cylindrique, ellipiique, ove ou renverfe, tantot a deux lobes & a 
deux loges, tantot a trois lobes & a trois loges, &c. dans les 
males ii defcend prefque jufqu’ a la region de la veffie uri- 
naire. 
Cette Veficule eft attachee avec l’eftomac, avec 1’efophage, fans 
le diaphragme, tantot par le cdte tantot; par la pointe & f’y 
abbouche par un conduit pneumatique. Gouan, Hiftoire des 
Poifions, 
liquors j 
