The papers in the Symposium on Metal Corrosion in the Atmosphere were given at the 70th Annual Meeting of the Society held at Boston, Mass., 25-30 June 1967. W. H. Ailor, Jr., Reynolds Metal Corp., and S. K. Coburn, U.S. Steel Corp., were the co-chairmen of this symposium sponsored by Committee G-1 on Corrosion of Metals.