Studies in the Psychology of Sex

Philadelphia: F.A. Davis, 1906. First edition (presumed; no earlier dates stated). Two brown-cloth octavo volumes, gilt to spine, 285 pages, 275 p, b&w diagrams Mild frayed wear to spine head and foot, light soiling to boards, stamp to fore-edge and top fore-edge, gently bumped corners, modest fraying to corners to both volumes, ownership signature and stamp to front pastedown, faint discoloration to one volume, else Good(+) to very good(-). Hardcover.

Psychology, Sex. Contents: The evolution of modesty.--The phenomena of sexual periodicity.--Auto-erotism. Contents: Erotic symbolism: the mechanism of detumescence: The psychic state in pregnancy. Two volumes of a five-volume set.