230 Aforphology and Physiology of Areas of Langerihans
animal, I endeavored to pass my ligature as close as possible
to the point of union of the two ducts. This point varies some-
what in different individuals, but in the main is about as repre-
sented in Fig. I5. In this figure, the ducts had been exposed
t s
/ .1
Fig. I5. Pancreas of cat laid open to show main ducts and their relation
to the large vein near the junction of the ducts. The letters are explained in
the text.
by dissection throughout their entire length, having been first
filled with a blue solution. The blood-vessels had been previously
injected with a red mass. The two halves of the pancreas were
then laid back to expose the duct. The delineator has not
represented quite accurately the relative size and length of the
two portions of the gland, but the point of junction of the ducts
and the relation of the ducts to the blood-vessels at the point
of operation are nearly correct. My ligature, then, in five opera-
tions was at t; five glands were ligatured at s and t, and two at s
only; ten had two ligatures tied tightly in the neighborhood of s,
the pancreas being completely divided between the ligatures
and the severed ends thoroughly cauterized to prevent the re-