So far as I can judge, it is not factory work alone in itself which exercises a detrimental effect on the physical development and, owing to its monotony, on the mental development also, but the general conditions of life, inseparable from such work, are prejudicial. Apart from many forms of employment in factories which are directly injurious to health, the factors which stunt physical development may be found in the housing conditions, in the pleasure-seeking town life, and in alcoholism. This latter vice is far more prevalent in the large cities than in the rural districts, and, in combination with the other influences of the great city, produces far more harmful results. It is therefore the unmistakable duty of the State, first, to fight alcoholism with every weapon, if necessary by relentlessly taxing all kinds of alcoholic drinks, and by strictly limiting the right to sell them; secondly, most emphatic encouragement must be given to all efforts to improve the housing conditions of the working population, and to withdraw the youth of the towns from the ruinous influences of a life of amusements. In Munich, Bavarian officers have recently made a praiseworthy attempt to occupy the leisure time of the young men past the age of attendance at school with health-producing military exercises. The young men's clubs which Field-Marshal v.d. Goltz is trying to establish aim at similar objects. Such undertakings ought to be vigorously carried out in every large town, and supported by the State, from purely physical as well as social considerations. The gymnastic instruction in the schools and gymnastic clubs has an undoubtedly beneficial effect on physical development, and deserves every encouragement; finally, on these grounds, as well as all others, the system of universal service should have been made an effective reality. It is literally amazing to notice the excellent effect of military service on the physical development of the recruits. The authorities in charge of the reserves should have been instructed to make the population of the great cities serve in larger numbers than hitherto. On the other hand, a warning must, in my opinion, be issued against two tendencies: first, against the continual curtailing of the working hours for factory hands and artisans; and, secondly, against crediting sport with an exaggerated value for the national health. As already pointed out, it is usually not the work itself, but the circumstances attendant on working together in large numbers that are prejudicial.