The care of swimming-pools in educational institutions and athletic clubs has of late years attracted considerable attention. Notable studies have been made, among which may be especially mentioned those at Brown University, and by Dr. William J. Lyster at the University of Pennsylvania. Gymnasia which are frequented by a large number of persons may act as foci of infection. It seems possible that a swimming-pool with a limited supply of water, when used by a large number of persons, may serve to convey from one to the other pathogenic organisms. In this connection the danger from typhoid fever seems to attract the attention of many people. There is no doubt that contaminated water may produce this disease in swimmers as the water is not infrequently taken into the mouth.
The men's gymnasium at the University of Wisconsin is much overcrowded and it was felt that a study of conditions as