LETTER TO NATIONAL INSTITUTE OF MENTAL HEALTH FROM ABRAHAM WIKLER RE LETTER & STUDY RESULTS SENT TO DR. R. BIRCHER (SANDOZ, INCORPORATED) RE PSILOCYBIN AND LSD-25

DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE PUBLIC HEALTH SERVICE 25 January IY6,0 National institute of Mental Health Addiction Rases:eh Center U.S. Public Health Serr;as Hospital Lexington, Yeatucky For your infor�ation I am enclosin3 copy of a letter to Dr.,P. 3Ircher, of Sandoz, Incorporated, ad copies of three tables explaining the results of our studies to date on tolerance and cross tolerance between psilocybin and LSD-25, as well as our plans for continu- ation of this work in the immed...