1. [2] T. P. Hoar , “Electrochemical Principles of the Corrosion and Protection of Metals,” J. Appl. Chem., p. 121 (April 1961).
2. [3] Catalogue of Specimens, Kure Beach-Harbor Island Museum, Harbor Island, North Carolina (International Nickel Company, Inc.), Catalogue No. 41-1 (March 1957).
3. [4] W. L. Wheatfall , U. S. Navy Marine Engineering Laboratory, unpublished data.