Mental Diseases and Their Modern Treatment

medulla oblongata is the butt end of the spinal cord. The band of union between this end of the cord, the cerebellum, and the cerebrum is termed the pons varolii.

Viewing the brain from the standpoint of development, we find that it is divided into three parts:

1. The forebrain, consisting of the olfactory lobes, the cerebral hemispheres, and the parts surrounding the third ventricle. 2. The midbrain, consisting of the corpora quadrigemini, and the crura cerebri. 3. The hindbrain, consisting of the cerebellum, the pons varolii, and the medulla oblongata.

This is the classification of Huxley, and is simple and easily remembered.

The physiological peculiarity of the brain is that it selfishly requires for its proper nourishment about one-sixth of all the blood in the entire body.

The brain in the newborn infant is said to weigh about ten ounces. The average weight of the adult brain ranges from forty to forty-eight ounces. The brain of the celebrated Cuvier weighed over sixty