Studies in the Psychology of Sex - Sexual Selection in Man, I. Touch, II. Smell, III. Hearing, IV. Vision #227982 7,85€
A Natural Method of Physical Training - Making Muscle and Reducing Flesh Without Dieting or Apparatus #221906 6,85€
Problem in Modern Ethics - Being an Inquiry Into the Phenomenon of Sexual Inversion; Addressed Especially to Medical Psychologists and Jurists #248596 6,85€
Hygiene of the Brain and Nerves and the Cure of Nervousness - With Twenty-Eight Original Letters From Leading Thinkers and Writers Concerning Their Physical and Intellectual Habits #248373 7,85€
