These menus are mere suggestions, not invariable, and in following them it should be remembered that all green salads may be substituted for one another, and as a general rule such underground articles as beets, carrots, turnips, and parsnips may be substituted for one another. Also green corn, peas, and beans are in the same general class. (See "Constipation," Vol. III, p.761.)

Observation of these rules will give the student rather a wide range of articles to draw upon in selecting a diet for the normal person.

LESSON XVII

Nervousness Its Cause and Cure

The nerves of the human body are the most important, the most complex, and probably the least understood of any part of the human anatomy. In conditions of health they are never heard from, therefore every expression of the nervous system is a symptom of some abnormal physical condition.

True meaning of nervousness