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"Diagram illustrating the general relationships of the parts of the brain. A, fore-brain; b, midbrain; B, cerebellum; C, pons Varolii; D, medulla oblongata; B, C, and D together constitute the hind-brain." —Martin, 1917

Brain

"Diagram illustrating the general relationships of the parts of the brain. A, fore-brain; b, midbrain;…

"Skeleton of hind foot of Kangaroo." —The Encyclopedia Britannica, 1910

Kangaroo Skeleton

"Skeleton of hind foot of Kangaroo." —The Encyclopedia Britannica, 1910