This volume includes papers collected over a period of three years. Four of the 18 papers are in French; the contributors represent Great Britain, the United States, France, the Netherlands, Italy, and Norway. The subjects include among others anoxia, latent epilepsy, arctic survival, the layout of cockpits, cabin pressure, cold injury, noise, abrupt deceleration, nocturnal vision, color vision, and heterophoria. The papers are highly technical and would not interest the general practitioner but should be of great interest to flight surgeons. A few of the papers include bibliographies. The text is clarified by the inclusion of well-chosen graphs, diagrams, and photographs. There is no index.