10. The vertebral artery ([p. 291]). Trace it to the foramen transversarium of the sixth cervical vertebra. Then with bone-forceps follow it to the atlas and into the atlantal foramen. Add this to your diagram of the subclavian.
11. The basilar artery ([p. 291]) and the other arteries of the brain ([p. 289]) are best studied on a preparation, similar to that shown in [Fig. 121]. To obtain such a preparation it is only necessary to remove the brain (for directions, see [p. 462]) of a specimen in which the arteries have been injected.
(12. Veins of the brain and dura mater ([p. 324]). These can be worked out only with much difficulty, except on specimens injected with gelatine. The skull must be chipped away and the veins followed without destroying them.)
13. Trace the pulmonary veins ([p. 315]) (filled with red injection) and the pulmonary artery ([p. 280]).
IV. Vessels in the abdominal cavity.
1. Open the abdominal cavity; find the superior mesenteric vein ([p. 326], and [Fig. 132]) in the duodenal mesentery near the border of the pancreas. Inject this in both directions with white starch and then dissect the portal vein and its tributaries without injuring any of the structures in the abdomen ([p. 326], and [Fig. 132]).
2. Follow the inferior vena cava ([p. 325]) from the heart to the diaphragm and then follow it to its tributaries in the abdominal cavity.
3. Dissect the branches of the abdominal aorta ([p. 301]) and of the inferior vena cava ([Fig. 126]). Make diagrams of the vessels dissected and review as far as necessary the viscera concerned.
V. The external iliac and its branches (vessels of the hind limbs) ([pp. 309] and 329, and [Figs. 127], [128], and [163]).
Follow the branches of the external iliac arteries and the corresponding veins in the same manner as the vessels of the arm were traced, cutting the muscles only so far as absolutely necessary. Make diagrams of the vessels dissected.