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Thank you very much for your letter. i will come over on the morning of Tuesday, January 13th, as indicated in your letter.

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,

Hawi Heee

Harris Isbell, M. D. Director

HI:1w

C-56

B-9

148

Ned ladet  eatal Haih Addictioa Researes Center U.. Public Hesitk Sartice Hepleu Lexintioa, Kastacky

DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE

PUBLIC HEALTH SERVICE

29 December 1958