Essays Upon Heredity and Kindred Biological Problems

Authorised Translation

The Renewal of Life; How and When to Tell the Story to the Young

Portrait Miniatures

The Biology, Physiology and Sociology of Reproduction

Also Sexual Hygiene with Special Reference to the Male

The Natural Philosophy of Love

The Works of Aristotle the Famous Philosopher

Containing his Complete Masterpiece and Family Physician; his Experienced Midwife, his Book of Problems and his Remarks on Physiognomy