I. Organization and Objects of the Medical Research Board, AIr Service, U. S. Army

The Medical Research Board was organized early in the autumn of 1917, "to investigate all conditions which affect the efficiency of pilots; to institute and carry out at flying schools or elsewhere such experiments and tests as will determine the ability of pilots to fly in high altitudes; to carry out experiments to provide suitable apparatus for the supply of oxygen to pilots in high altitudes; to act as a standing medical board for the consideration of all matters relating to the physical fitness of pilots." The equipment controlled by the board consists of a large and constantly expanding laboratory for research and teaching at one of the principal eastern flying fields, and of smaller branch laboratories for examining purposes already at work or being organized at twenty other flying fields and ground schools. In the main laboratory, departments have been organized in physiology, cardiovascular functions, psychology, ophthalmology, otology and