This page of the book is from "The New Student's Reference Work: Volume 2" by Chandler B. Beach, Frank Morton McMurry and others.

CIRCULATORY SYSTEM
(The red lines show arteries; the blue, veins.)
1—General circulation in the human body. 2—The heart, showing interior. 3—Cross Section of the heart, seen
from above. 4—Circulation of blood in the lungs. 5—Gall Bladder. 6—Liver. 7—Stomach.
8—Circulation of blood in digestive tract.