| Psychic phenomena
Edward T. Bennett | |
| Psychical Miscellanea / Being Papers on Psychical Research, Telepathy, Hypnotism, Christian Science, etc.
J. Arthur Hill | |
| Psycho Vox; or, The Emerson System of Voice Culture
Charles Wesley Emerson | |
| Psychoanalysis and Love
André Tridon | |
| Psychoanalysis and the unconscious
D. H. Lawrence | |
| Psycho-Analysis and the War Neuroses
Sándor Ferenczi; Karl Abraham; Sigmund Freud; Ernest Jones; Ernst Simmel | |
| Psychoanalysis, Sleep and Dreams
André Tridon | |
| Psychological Aspects of the Problem of Atmospheric Smoke Pollution
J. E. Wallace Wallin | |
| Psychological Warfare
Paul Myron Anthony Linebarger | |
| Psychologies
Sir Ronald Ross |
