Malaria is a germ disease, but like many other germ diseases, the primary cause is lowered resistance, caused by poisoned air and adulterated food stuffs. Protection against adulterated food stuffs depends upon enforcement of pure-food laws, and the training of every housekeeper in the art of domestic science. Impure milk, whether poisoned by the milkmen or handled carelessly by the housekeeper, cannot be turned into good blood. The same is true of other food stuffs. Dry, pure air is absolutely necessary for the patient who suffers with malaria. Dwelling places near which are stagnant pools, rain barrels, marsh land or stores where decayed fruits and vegetables are housed, are dangerous to people who are afflicted with malaria or any other germ disease. Mosquitoes are held responsible for both malaria and yellow fever. They breed in warm weather, wherever stagnant water is found. To prevent a disease that is spread by animal or vegetable parasites we must direct our effort against the breeding places of these disease carriers. Coal oil, poured upon the surface of stagnant water on streets, or near our homes, is a great help in preventing the multiplication of mosquitoes. Screens on dwelling houses, dry basements, plenty of sunshine in the home and the prevention of accumulation of vegetable refuse can do much toward protection from these parasites. People who are afflicted with partial congestion of the portal circulation have stagnant and poisoned blood, and are more liable to contract malaria than those whose liver is in good working order. Many people are under the impression that they have liver trouble if they put more work upon this organ than it is able to do. Overtaxing of any part of the body will finally result in congestion and disease. If mechanical obstructions are responsible for sluggish conditions of the liver, they should be remedied by anatomical and physiological adjustment. Deep breathing is of the greatest importance in all diseases affecting the abdominal organs. Fresh air at night is as important as during the day. During rainy weather have a fire going during the night in order to keep the air dry. Protect the body with warmer clothing after sunset, and wear light woolen underwear if necessary to avoid chills during sleep. The diet should be light and nutritious. Avoid all rich condiments, spices, soft puddings containing milk and eggs, yeast breads and cakes. Some cases should avoid milk, cheese, shell-fish and other foods rich in protein. THE FOLLOWING SUGGESTIONS MAY BE HELPFUL TO INVALIDS WHO SUFFER FROM CHRONIC AFFECTIONS OF THE LIVER AND INTESTINAL INDIGESTION. 1. Spend at least four hours per day out of doors. 2. Take short walks before and after dinner and before and after supper. Take deep breathing exercises by open windows before breakfast, and exercise the lower limbs while in bed.