Book Details + Condition: The Philosophical Research Society (Los Angeles, CA), 1947. Very scarce in this edition. Stapled printed wrappers. 71 pages. A study of the occult aspects of human physiology by Manly Palmer Hall (1901 - 1990), a Canadian-born occultist, mystic and author best known for his "The Secret Teaching of All Ages." Hall gathered together a world renowned collection of books and manuscripts on alchemy, mysticism, the occult, etc. which became part of the library of an organization the Philosophical Research Society which he founded in 1934. Hall himself wrote over a hundred books and pamphlets on the esoteric subjects. Light wear to covers, with a spot of discoloration (remnant of sticker) to front and fading to extremities; chipping to edges of back cover; interior is clean and free of markings.