The author gratefully acknowledges permission to reproduce copyrighted material from various authors and publishers as follows:
The American Psychological Association; Marjorie Kawin-Toomim; Stephen Bailey; Jerone Chandler; Elmer E. and Alyce Green; A. W. Osborn;
Pantheon Books, Random House for In My own Way by Alan Watts, © 1972 and Sketch fior a Self Portrait by Bernard Berenson © 1949; and The Occult by Colin Wilson, © 1971;
International Journal of Parapsychology for D. Blewett cite;
George Allen and Unwin and E. P. Dutton for cites from John Blofeld; The Tantric Mysticism of Tibet © 1970, and The Way of Power;
Harper and Row for cites from Aldous Huxley The Perennial Philosophy © 1945 and from Anton Boisen The Exploration of the Inner World © 1936;
Hutchinson Publishing Group for cites from Paul Brunton's The Hidden Teaching Beyond Yoga (© Rider and Co, 1941) and The Projection of the Astral Body (© Rider and Co, 1929) and The Phenomena of Astral Projection (© Rider and Co, 1951) both by Muldoon, S. and Carrington, H.;
E. P. Dutton for cites from R. M. Bucke Cosmic Consciousness © 1923; and W. E. Woodward, The Gift of Life © 1947;
University Books, for Crookall, R. The Study and Practice of Astral Projection, © 1966;
Grove Press for cites from W. V. Caldwell, LSD Psychotherapy, © 1968 by author;
William Heineman Ltd for cites from A. David-Neel Magic and Mystery in Tibet, © 1971;
Theosophical Publishing House for cites from H. T. Edmunds Psychism and the Unconscious Mind © 1968, and A. W. Osborn The Meaning of Personal Existence © 1966;
Oxford University Press for Evan-Wentz The Tibetian Book of the Dead© 1967;
David McKay Co, Inc. for cites from V. H. Gaddis Mysterious Fires and Lights © 1967 by the author;
Estate of Eileen J. Garrett and Parapsychology Foundation Publishing Co. for cites from her Adventures in the Supernormal © 1949;
Journal of Transpersonal Psychology for cites from D. Goleman;
The Wall Street Journal for an article by Graham; © 1972 Dow Jones and Co.
University Books for cites from Gerald Heard in The Psychedelic Reader © 1971;
Holt, Rinehart and Winston for a cite from H. Hesse The Glass Bead Game, © 1969, and from Masters R. E. L. and Houston, The Varieties of Psychedelic Experience, © 1966;
the Bollingen Foundation, Princeton University Press for cites from Complex/ Archetype /Symbol by J. Jacobi © 1959, and for Art and the Creative Unconscious by E. Neumann, © 1959;
Ann Isaacs and Stanley Krippner, The Gifted fled Child Quarterly
for lengthy cites from his "The Creative Person and Non-Ordinary Reality",©
1972;
The Phi Delta Kappan and Paul Levine for his article on TM. © 1972;
SRM Foundation of Great Britain and Maharashi Mahesh Yogi for cites on Commentary on the Bhagavad Gita, © 1969;
Kappa Delta Pi Honor Society for a cite from "Religions, Values and Peak Experiences" by A. Maslow, © 1964;
The Structurist for cites from "The Creative Attitude" by A. Maslow; © 1963;
Houghton Mifflin Co. for a cite from McGlashlan's The Savage and Beautiful Country © 1967;
MacMillan Publishing Co. and Ralph Metzner for cites from his Maps of Consciousness © 1971 by author;
John Wiley and Sons for cites from Mogar, R. E. in Altered States of Consciousness (C. T. Tart Ed.) © 1969;
Prentice-Hall, Englewood Cliffs, N. J. for a cite from J. Murphy The Power of Your Subconscious Mind © 1963, and for cites from Jane Roberts The Seth Material © 1970, and Seth Speaks © 1972;
Swami Nikhilanda and Harper Bros. for his Ramakrishna, Prophet of New India © 1942 by author;
Psychic Magazine for cite from W. G. Roll's article on "Psychic Research in the Seventies";
Dell Publishing Co. and Robert de Ropp for cite from The Master Game © 1968 (by permission Seymour Lawrence/Delcorte Press);
Robert Knapp, Publisher for lengthy cites from J. G. Gowan Development of the Creative Individual © 1972, and from E. L. Shostrom, Manual for the Personality Orientation Inventory, © 1966;
David Sinclair for a cite from Upton Sinclair Mental Radio © 1962;
The American Society for Psychical Research and Dr. Ian Stevenson for cites from Telepathic Impressions, © 1970;
W. W. Norton Co. for cites from H. S. Sullivan The Interpersonal Theory of Psychiatry, © 1953 by the Wm. Alanson White Psychiatric Foundation;
Science and Behavior Books for cites from C. T. Tart On Being Stoned © 1971;
William Irwin Thompson and Harpers Magazine for cites from his article "Planetary Vistas" © 1971 by the author;
University Books for cites from G. W. N. Tyrell's Apparitions © 1961; E. P. Dutton, for cites from E. Underhill Mysticism © 1961;
The Journal of Transpersonal Psychology for cites from K. Wapnack "Mysticism and Schizophrenia" © 1969;
Houghton Mifflin Co. for cites from A. Weil The Natural Mind, © 1972;
Journal of the Study of Consciousness for cites from John White; © 1971;
The Julian Press for cites from 1. Progoff The Cloud of Unknowing, © 1969;
Grossman Publishers for cites from Goble F. G. The Third Force © 1970; by
Mentor Books for a cite from Stace W. T. The Teaching of the Mystics © 1960;
Viking Press, for cites from Maslow A. The Further Reaches of Human Nature (© 1971;
The Academy of Parapsychology and Medicine for E. E. Green et al. "The Varieties of Healing Experience", © 1972.