[ 1 ” ] 
XV. Account of the Stomach of the Gillaroo 
Trout, In a Letter from Mr . Henry 
IVatfon to Sir John Pringle. 
SIR, 
Redde, Jan. 27, y g H H E requell, you was pleafed to 
17 7+ ' Jp make to me, in the name of 
the Royal Society, that, at my leifure, I would 
examine into the ftru£ture of the llomach of the 
Gillaroo trout, I fhall now endeavour to comply 
with, in the bell: manner I am able. 
The Hate, in which I received this llomach, did 
not admit of the moll accurate examination ; and 
the llomach of the common trout, fent to me at 
the fame time, was fo hardened, and Ihrivelled 
up, 1 could by no means unfold it, or draw any 
comparifon between them. 
The llomach of the Gillaroo trout may be 
divided, at leall, into three coats; — an internal, a 
middle, and an external one. 
The external is a kind of peritoneal covering, 
common to the llomach, intellines and other 
vifcera. 
The middle coat appears to be of a fibrous 
mufcular texture, pretty thick in flelh, llronger 
than in the falmon ; and of a yellowilh colour. 
Vol.LXIV. R The 
