then, by pushing the intestines to one side, find the kidneys and the
bladder.

3. Study the liver with reference to its location, size, shape, and color.
On the under side, find the gall bladder, from which a small tube leads to
the small intestine. Observe the portal vein as it passes into the liver.
As the liver is filled with blood, neither it nor its connecting blood
vessels should be cut at this time.

4. Trace out the continuity of the canal. Find the esophagus where it
penetrates the diaphragm and joins the stomach. Find next the union of the
stomach with the small intestine. Then, by carefully following the coils
of the small intestine, discover its union with the large intestine.

5. Within the first coil of the small intestine, as it leaves the stomach,
find the _pancreas_. Note its color, size, and branches. Find its
connection with the small intestine.

6. Beginning at the cut portion of the abdominal wall, lift the thin
lining of the peritoneum and carefully follow it toward the back and
central portion of the abdomen. Observe whether it extends back of or in
front of the kidneys, the aorta, and the inferior vena cava. Find where it
leaves the wall as a _double_ membrane, the _mesentery_, which surrounds
and holds in place the large and small intestines. Sketch a coil of the
intestine, showing the mesentery.

7. Find in the center of the coils of small intestine a long, slender body
having the appearance of a gland. This is the beginning of the _thoracic
duct_ and is called the _receptacle of the chyle_. From this the thoracic
duct rapidly narrows until it forms a tiny tube difficult to trace in a