then so placed below, and in front of, the projector that no shadow of the camera is cast upon the patient's chest, and the photograph is then taken.
SUMMARYThe aetiology of funnel chest and allied deformities is reviewed. It is considered that a failure of osteogenesis and chondrogenesis is more likely to be the aetiological factor, than a primary maldevelopment of the diaphragm.A technique for recording these deformities is described.