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of an overt seizure disorder in one individual. The survey has disclosed the occurrence of two (probably three) fatal aircraft accidents, one fatal automobile accident, two nonfatal aircraft accidents, and three aircraft incidents, involving members of the group. Implications with regard to physical standards for aircrew members are discussed.” 3 January 1949 Aviation sunglasses (Dr. Matthews, San Antonio, TX): “The sun’s effect on the eye is exerted in the three zones of radiation: ultraviolet, infrared, and visible. Of these the ultraviolet may be