The authors gratefully acknowledge permission to reprint excerpts from the following sources:

Aldous Huxley, by Sybille Bedford. Copyright    by Sybille Bedford. Reprinted by permission of Alfred A. Knopf, Inc.

The Beyond Within, by Sidney Cohen, M.D. Copyright © 1964, 1967 by Sidney Cohen. Reprinted by permission of Atheneum Publishers. In England published as Drugs of Hallucination by Sidney Cohen. Copyright by Sidney Cohen. Reprinted by permission of Martin, Secker & Warburg Ltd.

The Center of the Cyclone: An Autobiography of Inner Space, by John C. Lilly, M.D. Copyright 1972 by John C. Lilly, M.D. Used by permission of the Julian Press, a division of Crown Publishers, Inc.

The Drug Beat, by Allen Geller and Maxwell Boas. Copyright 1969, with the permission of Contemporary Books, Inc., Chicago (U.S.) and the permission of the authors and the authors' agents, Scott Meredith Literary Agency, Inc., 845 Third Avenue, New York, N.Y. 10022 (world).

The Drug Experience, edited by David Ebin. Copyright 0 by Davia Ebin.

The Electric Kool-Aid Acid Test, by Tom Wolfe. Copyright 1968 by Torn Wolfe. Reprinted with the permission of Farrar, Straus & Giroux, Inc.

"Hallucinogens: A Novelist's Personal Experience," (Playboy, November 1963) as amended by the author. Reprinted by permission of International Creative Management. Copyright 1963, 1979 by Alan Harrington.

"Halluzinogene in der Psychotherapie," by Hanscarl Leuner in Pharmakopsychiatrie Neuro-Psychopharmakologie, 4 (1971), pp 331-51. Georg Thieme Verlag, Stuttgart.

The Healing Journey: New Approaches to Consciousness, by Claudio Naranjo. Copyright by Claudio Naranjo. Reprinted by permission of Pantheon Books, Inc.

High Priest, by Timothy Leary. Copyright by Timothy Leary.

"Implications of LSD and Experimental Mysticism," by Walter N. Pahnke and William A. Richards. Journal of Religion and Health Vol. 5, No. 3, 1966. Reprinted with permission of the Journal of Religion and Health, 3 West 29th St., New York, N.Y. 10001.

"Indications and counter-indications for LSD treatment," by Thorkill Vanggard in Acta Psychiatrica Scandinavica, 40 (1964), pp. 427-37. Copyright Thorldll Vanggard. Reprinted by permission of Munksgaard International Publishers Ltd.

Infinite Turbulence, by Henri Michaux. Copyright by Henri Michaux. Reprinted by permission of Calder and Boyars Ltd.

"LSD-Assisted Psychotherapy and Dynamics of Creativity: A Case Report," by W. A. Richards and M. Berendes in the Journal of Altered States of Consciousness, Vol. 3 (2), 1977-78. Reprinted by permission of Baywood Publishing Company and the authors.

LSD Psychotherapy, by W. V. Caldwell. Reprinted by permission of Grove Press, Inc. Copyright 0 1968 by W. V. Caldwell.

"LSD, Transcendence and the New Beginning," by C. Savage, D. Jackson, and J. Terrill in the Journal of Nervous and Mental Disease, November 1962. Reprinted by permission of the Williams & Wilkins Company.

Lysergic Acid (LSD 25) and Ritalin in the Treatment of Neurosis, by Thomas A. Ling and John Buckman. Copyright 0 by Thomas A. Ling and John Buckman.

The Major Ordeals of the Mind and the Countless Minor Ones, by Henri Michaux. Copyright 0 1966 by Editions Gallimard, English translation copyright 1974 by Harcourt Brace Jovanovich, Inc., and reprinted with' their permission.

"Psychedelic Therapy (Utilizing LSD) with Cancer Patients" by W. N. Pahnke et al. Reprinted with permission of STASH, Inc., from the Journal of Psychedelic Drugs, Vol. 3 (1): 66, September 1970. Copyright 1970.

Psychedelics: The Uses and Implications of Hallucinogenic Drugs, by Bernard Aaronson and Humphry Osmond. Copyright 0 by Bernard Aaronson and Humphry Osmond. Reprinted by permission of Doubleday & Company, Inc.

Realms of the Human Unconscious, by Stanislav Grof and Joan HalifaxGrof. Copyright 1975 by Stanislav Grof and Joan Halifax-Grof. Drug Abuse & Addiction, Detoxification, Treatment, Opiate Withdrawal. Substance Abuse: Heroin, Cocaine, Marijuana, Crystal meth, Vicodin, OxyContin, Amphetamines, Percocet and others.
All Rights Reserved. Reprinted by permission of Viking Penguin Inc.

"Tomorrow Never Knows," by John Lennon and Paul McCartney. Copyright 0 1967 Northern Songs Limited. All rights for the United States, Canada, Mexico, and the Philippines controlled by Maclen Music, Inc. Drug Abuse & Addiction, Detoxification, Treatment, Opiate Withdrawal. Substance Abuse: Heroin, Cocaine, Marijuana, Crystal meth, Vicodin, OxyContin, Amphetamines, Percocet and others.
All Rights Reserved.

The Varieties of Psychedelic Experience, by R. E. L. Masters and Jean Houston. Copyright by R. E. L. Masters and Jean Houston. Reprinted by permission of Holt, Rinehart & Winston.

The Yage Letters, by William S. Burroughs and Allen Ginsberg. Copyright 0 by William S. Burroughs and Allen Ginsberg. Reprinted by permission of City Lights Books.