Nature's secrets revealed : scientific knowledge of the laws of sex life and heredity, or, eugenics : vital information for the married and marriageable of all ages ... together with important hints on social purity, heredity, physical manhood and womanhood by noted specialists, embracing a department on ethics of the unmarried / by T.W. Shannon; introduced by Samuel Fallows; medical department by W.J. Truitt.
- Marietta, Ohio : S.A. Mullikin, 1916
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