NY: Parapsychology Foundation, 1958. 62pp; tables. Saddle-stapled in wraps. Very good or better, with tiny spits to ends of the sunned spine.
A review of studies attempting to establish links between ESP and such personality variables as intelligence, introversion-extraversion, attitudes of belief, etc. Notable as the first of 19 volumes (as of 2024) in the Parapsychological Monographs series.
