Defluorination of Fluorspar by Paul S. Lewis, L. B. Pankratz, Martin H. Stanczyk, William W. Weller, Carl Rampacek, Lanford H. Adami, Robert K. Koch, Raymond W. Hiteshue, Robert Madden, Wilbur I. Duvall, Miles E. Tyrrell, William T. Abel, Francis Harold Gibson, William Harlan Ode, Robert F. Stewart, Louis P. Domingues, Roy L. Wilfong, LeRoy R. Furlong, Edward Gerard King, Henry E. Blake, Abner Decker Hahn, Sam Friedman, Paul G. Barnard, Alla D. Mah, Martin D. Schlesinger, Joan T. May, Walter Kawa, James R. Welty, Charles E. Wicks, Alfred V. C. Meyer, Claudius W. Dwiggins, C. L. Hoatson, D. F. Walsh, L. V. Frank, J. A. Rowland