Handbook for the Therapeutic Use of LSD: Individual and Group Procedures (1959)

This handbook, written by D.B. Blewett, Ph.D., and N. Chwelos, M.D., in 1959, was one of the earliest manuals written for LSD-assisted therapy. It is still one of the most comprehensive guides on psychedelic therapy, offering a wealth of details on dosage, setting, the stages of the LSD experience, and common issues that may arise.

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A Sample from the Handbook:

Chapter 2
There are two reasons why the LSD experience does not lend itself readily to verbalization. Firstly, the sensory aspect of the experience is outside the bounds of the usual experience from which lan- guage has developed and for the description of which it is intended. Secondly, the experience is mainly in the sphere of emotions or feelings which are difficult to objectify or verbalize at the best of times.
Before attempting to draw any conclusions about the suggested value of LSD one would want to know something of the nature of the experience which the drug induces. Also, it is inevitable that ef- fective methods of using the drug must be dictated by the nature of the experience.
Because of the difficulty in describing the experience in any but subjective terms, our knowledge of it has been built up bit by bit from personal LSD experience and through observations and reports of other individual and group experiences.