350 ON THE ANATOMICAL PECULIARITIES 
which discharge pancreatic liquor by six ducts into the in- 
testinal canal. Waiving entirely the circumstance of dis- 
charging pancreatic hquor, which is a mere assertion, and 
may or may not be true, there is no doubt that the cceca^ and 
the so named pancreas, are really varieties of the same form 
of organization. That the intestina aeca^ or pyloric appen- 
dages, and the pancreas^ or pancreatoid organ, are truly to be 
referred to the same parts, is proved by the fact, that in no 
genus of the finny tribes do we find both these forms of or- 
gans, and that, in those which have the cceca, the pancreas- 
like organ is wanting ; and conversely, those which are pro- 
vided with the latter are destitute of the former organ. 
The triangular cellular organ of the Sturgeon, in short, 
may be regarded as the second form of this variety of 
structure. 
In external appearance, indeed, it bears so close a re- 
semblance to the pancreas of warm-blooded animals, that 
Dr Monro the second, who has left a delineation of it and 
its interior cavities, and Sir Everard Home, who repre- 
sents it in situ, scruple not to give it the denomination ; and 
their example has been more or less generally followed by 
writers on zootomy. I am averse to innovation, and un- 
willing to change names which imply no serious error. But 
I feel that it is requisite to point out the differences be- 
tween this organ and the genuine pancreas in warm-blooded 
animals. 
In the latter classes, the pancreas is a glandular organ of 
the kind named conglomerate, that is, consisting of lobules, 
which again are composed of granules named acini, which 
are liberally supplied with blood, and to which is assigned 
the duty of secreting from the blood a fluid not existing in 
it, and possessed of distinctive and peculiar properties. 
This organ, like other glands, is provided with an excre- 
tory duct or canal into which the secreted fluid is poured, 
and by which it is conveyed into the duodenum. The 
