It cannot be too frequently repeated that for those children, more especially those who come of nervous families, any considerable error in this direction has a fatal tendency to awaken the disposition to nervous disease. At every step of the infancy, childhood, and youth of such persons, the most generous allowance of the more nutritive elements of food is of the first importance. At the same time I am entirely opposed to the practice of giving stimulants to any considerable extent, or indeed to any extent, save in exceptional instances. Good meat, bread, milk, butter, fruit, and vegetables, are really the efficacious means of fortifying the nervous system against the impending dangers. With hospital out-patients, for whom we cannot command such diet, our best course, whenever they show signs of deficient nutrition, will be the steady administration of cod-liver oil for a long period. (3) The true and proper training of the muscular system is among the most important means of antagonizing the tendency to the development of the neuralgic habit. It is a great mistake to suppose that over-training in athletics of any kind is of use; but the systematic employment of means which tend to make the muscular system hardy and efficient is of very great benefit. The parents of children who may be supposed by inheritance to possess a tendency to neuralgia would do well to study such a methodical series of directions as those which are given by Mr. Maclaren, in his excellent work on physical training. I suspect that the benefit of judicious gymnastics is wrought in two ways: first, by its improving circulation and general nutrition, including the nutrition of the nervous centres; and, secondly, that it gives the nervous centres an education, so to speak, by the variety of difficult co-ordinative movements over which it trains those centres to preside. But unquestionably the matter is a science, not a mere rude art, and requires to be studied as such.