Scope and Contents This manuscript, written by John Hannon, is an unpublished, forty page account of the author's experiences while experimenting with nitrous oxide.  Hannon compares his experiences while using nitrous oxide to those while under the influence of cannabis, LSD, ketamine, and psilocybin.  He also provides some historical context for the use of hallucinogenics and experiences while under their influence.

Abstract This collection contains writings that document the career and research interests of psychiatrist and author Stanislav Grof. It consists primarily of published research articles and clippings discussing the therapeutic effects of psychoactive substances as well as some first-hand accounts of transcendental experiences.