Volume I, Part 1: The evolution of modesty. The phenomena of sexual periodicity. Auto-erotism. Part 2: Analysis of the sexual impulse. Love and pain. The sexual impulse in women. Part 3: Sexual selection in man. Part 4: Sexual inversion. Volume II, Part 1: Erotic symbolism. The mechanism of detumescence. The psychic state in pregnancy. Part 2: Eonism and other supplementary studies. Part 3: Sex in relation to society