Thanks are due to the author and to Grune & Stratton for permission to quote from Meaning and Content of Sexual Perversions, by Medard Boss; to George Allen & Unwin in respect of The Phenomenology of Mind, by Hegel, translated by J. B. Baillie; to Baillière, Tindall & Cox in respect of Lectures on Clinical Psychiatry, by E. Kraepelin; to The Hogarth Press and the Institute of Psycho-Analysis in respect of Beyond the Pleasure Principle, by Sigmund Freud, from The Complete Psychological Works of Sigmund Freud, Vol. XVIII; to Rider & Co., London, in respect of The Analysis of Dreams, by Medard Boss, and The Psychology of Imagination, by Jean-Paul Sartre; and to Martin Seeker & Warburg in respect of The Opposing Self, by Lionel Trilling.
The author wishes to thank Dr M. L. Hayward and Dr J. E. Taylor for their kind permission to quote at some length in Chapter 10 from their paper ‘A Schizophrenic Patient Describes the Action of Intensive Psychotherapy’, which appeared in the Psychiatric Quarterly, 30,211–66.