If you suppress the cause, the headaches will go. In treating headaches it is very necessary to prevent the bowels from becoming confined. Eat well, sleep well, and ventilate your rooms well. CONSTANT READER.—The treatment of debility is one of very great difficulty. For the condition, though alas! so very common, is not well understood, and we have no sound working hypothesis as to its cause. The most plausible theory is that debility is loss of nervous energy—that in this condition the nervous system is in the same state as the blood is in anæmia. The best way to treat the condition is by a strong tonic treatment to stimulate the flagging nervous system. The word “tonic” naturally brings up visions of quinine and iron to most persons. Quinine is a tonic, but it is not the tonic which is required in debility. The medicinal tonics are drugs which stimulate for a short time. But in debility we want something which will stimulate for weeks or months, and the Pharmacopœia does not provide us with drugs wherewith to do this. But we can get a strong tonic treatment without drugs in the following way:—Eat well of highly-nutritious food, plenty of meat and green vegetables, custards, milk, etc. Avoid food which fills you up without giving you sufficient nourishment, such as excessive quantities of starchy food, dried peas and beans, soups, etc. Eat as much as you wish. For drinks, the best are milk or milk and soda. Beef essences taken as stimulants are sometimes useful. Cod-liver oil, maltine, cream, etc., are also very helpful. These are definite foods and not drugs. Tea and coffee may be taken in moderation. You should also take plenty of sleep, and plenty of healthy, but not severe, exercise; and, if possible, a change of air and scene. OPTIMIST.—Some years ago an ingenious person made the remark that there existed on the earth vegetable productions which could cure all human diseases; that we had only to find the trees and we should have a specific for every ailment. Quite so. We have only to find the trees. But it is a significant fact that although we have explored at least nine-tenths of our planet, and have tried almost all vegetable productions for the treatment of disease, we have not yet discovered one single specific for any disease. We see there are something over ten thousand ways by which a man can lose his life. We suppose therefore that we are to discover ten thousand trees with ten thousand separate actions. True, the vegetable kingdom has given up many valuable drugs, but not one single specific has it supplied to us. The mineral kingdom has given us the nearest approach to a specific, _i.e._, iron for anæmia. STUDY AND STUDIO.