DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE PUBLIC HFALT)I SIRVICE 29 December 1958 Nadmal indtou of Mental Health A44cdoa Rcusmb Ccbtw 2 V. S. PlabLk He&M Service Hospital T.exingus, tos=cky . .................. Thank you very much for your letter. I will come over on the morning oftuesday, January 13th, as indicated in your lette2r. I hope to have some information about Psilocybin and the LSD congener with sedative effects at that time. With kindest personal regards, Yours very sincerely, Harris Isbell, M3. D. Director HI:lw -5