ERS HELEN W. BELDING, M.D., Winston-Salem, N.C. OLIVER P. JoNES, Pu.D., Buffalo SHEILA T. CALLENDER, M.D. , Oxford, England CONRAD MAIER, M.D., Zurich, Switzerland GEORGE E. CARTwRIGHT, M.D. , Salt Lake City MIL0s NETOUSEIC, M.D. , Prague, Czechoslovakia ROGER C. CRAFTS, PH.D. , Boston JEAN P. SOULIER, M.D. , Paris CHARLES P. EMERSON, M.D., Boston RAMON M. SUAREZ, M.D., Sanjuan, Puerto Rico SOL...