+Relation of War to the Spread of Venereal Disease.+--The frequent reference to the relation of war to the problems of sexual disease seems to justify a concluding paragraph on this aspect of the matter. Much of the impetus which has carried European nations so far along the road toward an organized attack on syphilis and gonorrhea, as has been said, is undoubtedly due to the realization that war in the past has been the ally of these diseases, and that a campaign against them is as essential to national self-defense as the organization of a vast army. Conflicting reports are coming from various sources as to the prevalence of syphilis and gonorrhea among European troops, although hopeful indications seem to be that troops in the field may have even a lower rate of disability than in peace times (British figures). The most serious risks are encountered in troops withdrawn from the front or sent home on leave, often demoralized by the strain of the trenches. The steady rise in the amount of syphilis in a civil population during war is evidenced, for example, by the figures of Gaucher's clinic in Paris, in which, just before the war, 10 per cent of patients were syphilitic; after the first sixteen months of the war 16.6 per cent were syphilitic, and in the last eight months, up to December, 1916, 25 per cent had the disease. There can be no doubt that a campaign of publicity can do much to control the wholesale spread of infection under war conditions, and we should bend our efforts to it, and to the more substantial work of providing for treatment and the prevention of infectiousness, with as much energy as we devote to the other tasks which preparedness has forced upon us. The rigorous provisions proposed for continental armies should be carefully studied, and in no cases in which either syphilis or gonorrhea is active should leave or discharge be granted until the infectious period is over. Compelling infected men to remain in the army under military discipline until cured might have a deterrent effect upon promiscuous exposure. In addition we should create as rapidly as possible a mechanism for keeping inactive cases under surveillance after discharge until there can no longer be the slightest doubt as to their fitness to reenter civil life. Observers of European conditions in the population at large are emphatic in saying that home conditions must have as much attention as the army, and that suppression of open prostitution, a watchful eye on the conditions under which women are employed or left unemployed, and the control of contributory factors, such as the liquor traffic, must be rigorously carried out. Nation-wide prohibition will do much to control venereal disease.[18] It is interesting and significant that little reliance is being placed on the obsolete idea that prostitution can be made a legitimate and safe part of army life solely by personal prophylactic methods, or by any system of inspection of the women concerned.