NORTHFIELD, WILFRED. — Sound Sleep. Proved Methods of Attaining It.

London: The Psychologist, 1937. Practical Psychology Handbooks No.9. "Do You Want - To be Able to Fall Asleep Easily? To Go Through the Night Without Lying Awake? To Rise Refreshed and Full of Energy? To Banish for Good the Fear of Insomnia? Then this handbook will enable you to realize your wishes, by giving you a New Conception of Sleep." 18.5cms x 12cms. Pp.47/1(ad for The Psychologist Magazine). Paperback, slightly rubbed. G+.