The theory of disease is so well understood to-day that our physicians clearly recognize mental disease as well as physical. Insanity is no longer punished as a crime as in the days gone by, and even kleptomania is now a well classified and recognized disease. No intelligent person doubts the disease of kleptomania; its symptoms are too well established. When a person steals a thing he does not need, it is an evidence of kleptomania, an ungovernable will. When a poor person takes a thing he needs and cannot live without, there is no evidence of an ungovernable will. Many facts have been classified concerning physical disease and our knowledge of its nature, cause, and cure grows year by year. Malignant spirits and accident are no longer considered in reference to disease; while the origin of all bodily ailments is not yet known, so many have been ascertained as to make it sure that with sufficient knowledge, all could be traced to their natural cause. And while the means have not yet been found to cure each disease, still so much is known as to warrant the belief that there is no physical ailment that will necessarily cause death. And intelligent research is constantly adding to the known and ever narrowing the realm of the mysterious and unexplained. In physical disease long observation has shown that certain climates and certain localities are favorable to this disease or that; some places naturally breed malaria, and the mind of man is turned to discovering methods to overcome the conditions which produce the disease. If fevers abound, the conditions are carefully observed to find what breeds the infectious germ. It is not difficult to imagine that if the medical profession should ever labor purely to cure disease, instead of to make money for itself, and should continue its research and investigation, that few would die until old age should terminate life as simply and naturally as birth ushers it in.