Henry Maurice Dunlop Nicoll, also known by his pen name Martin Swayne, was a Scottish neurologist, psychiatrist, author, and esoteric teacher, born on July 19, 1884, in Kelso, Scotland. He died on August 30, 1953, in Great Amwell, England. Nicoll s work spanned a variety of intellectual fields, including psychology, philosophy, and esotericism. He was particularly influenced by the teachings of C.G. Jung, G.I. Gurdjieff, and P.D. Ouspensky, and he dedicated much of his work to exploring the Fourth Way teachings and esoteric Christianity. Nicoll also had a deep interest in dream interpretation and was known for his writings on the subject, such as Dream Psychology and Psychological Commentaries on the Teaching of Gurdjieff and Ouspensky. His other notable works include The New Man, Living Time and the Integration of Life, and Some Interpretations of the Parables and Miracles of Christ. His esoteric teachings and writings contributed to the study of the human mind and spiritual development. Nicoll s father, William Robertson Nicoll, was a well-known figure in British publishing. He was married to Catherine Champion-Jones.