(ESTIMATED PUB DATE) LETER TO HARRIS ISBELL RE COMPOUND NO. 23194, COMMENTS ON DR. JANSSEN'S COMPOUND, DR. HOFFMAN'S PRESENTATION ON PSILOCYBIN, & PENDING VISIT IN JANUARY

Dr, Harris Isbell Director of Research U.S. Public Health Service Hospital Addiction Research Center Box 2000 Lexington, Kentucky Dear Dr. Isbell: Your letter of 28 October 1958 was most informative and is greatly appreciated...