1. Recommendations of the Commission on Electrochemical Nomenclature and Definitions of C. I. T. C. E., R. Defay, N. Ibl, E. Levart, G. Milazzo, G. Valensi, and P. van Rysselberghe: J. Electroanalyt. Chem. 7, 417 (1964).
2. Eisenberg, M.: Proc. 18th Annual Power Sources Conf., Atlantic City, N. J., 1964, p. 20.
3. Adams, A. M., F. T. Bacon, and R. G. H. Watson: Fuel Cells, Chap. 4. New York: W. Mitchell, Jr., ed., Academic Press 1963.
4. See May, P. S.: Proc. 18th Annual Power Sources Conf., Atlantic City, N. J., 1964, p. 1.
5. Niedrach, L. W., and W. T. Grubb: Fuel Cells, Chap. 6. N. Y.: W. Mitchell Jr., ed., Academic Press 1963.