LETTERS. - BACK, J. WILLIAM; KROPF, WALTER B.; STOCKWELL, ELIZABETH R.; NEWMAN, ROBERT W.; MAILER, NORMAN; ZEHNLE, MRS. ROBERT; WYNEN, (MRS.) NANCY H.; M.D, D.T. MOORHEAD II; SAMUEL, GERRY; BACHRACH, JOSEPH; LESSER, JULIAN; SWIM, MRS. H.B.; et al. (TIME Magazine, 1972)