Proper growth and activity of the brain and nervous system are promoted by a healthy flow of blood. Pure air and sufficient protein food properly combined and proportioned with carbo-hydrate and fatty foods, rich in phosphates and minerals, are essential. Choose more of the lighter form of protein and starchy foods, as fish, eggs, almonds, green peas, bacon, a moderate amount of lamb and beef, rice, sago, wheat, and vegetable gelatines. Foods rich in minerals are celery, apples, tomatoes, greens, oranges, and practically all the fresh fruits and vegetables, especially the small berries. Melons and starchy vegetables in large quantities are suitable for muscular workers. Use as little as possible of so-called pure chemical substances, such as refined sugar and flour. Avoid poisonous beverages, tobacco and all forms of drugs. Sleep at least nine hours in a well ventilated room, facing east or south. Avoid constipation. Combine mental work with moderate amounts of useful and enjoyable exercise, or physical work. Protect the eyes from strong artificial light. Keep the feet warm. Relax before and after meals. A certain amount of manual labor is absolutely necessary for the brain-worker. It favors deep breathing and creates a demand for more air and water, and thus improves digestion, oxidation and nutrition. The body poisons are carried off quicker and nervous headaches and despondency are avoided. Short walks out of doors before retiring are very beneficial for people who suffer with cold hands and feet. “THE IMMIGRANT.” All who leave the land of their birth should make themselves acquainted with the art of living and the peculiarities of the new country in which they intend to live. To depart entirely from their old customs and habits is as dangerous as to neglect the study of the new environment or the failure to adopt necessary changes. In some States the climatic conditions of the United States are very changeable; we have extreme heat and cold, and excess of rain with wind storms and dryness changing within a short time. West of the Rocky Mountains we have a mild sea air. In the Southern States and near the Pacific Coast we have low districts where malaria and catarrhal conditions are easily acquired. Tropical fruits and vegetables which are looked upon as luxuries in Northern Europe are necessary articles of food in the country where they grow, therefore the stranger should make himself acquainted with such foods and by degrees learn to eat them. In countries where the days are extremely hot and the nights are cold, the selection of foods should be made accordingly. Fats produce more than twice the amount of energy than carbohydrates, therefore they are more suitable during the early part of the day. During the middle of the day select foods of the protein class, in proper proportion with fruits and raw greens. For the evening meal use the stimulating sub-acid and sweet fruits in combination with light protein and cereal foods.