CHAPTER IV
MEDICAL PHASES
Dock, L.L. _Hygiene and Morality; Medical, Social and Legal Aspects of Venereal Diseases._ New York, 1910.
Fisher, Irving. _National Vitality._ Washington, 1910. U.S. 61st Cong., 2d Sess. Senate Doc. 419.
Hall, W.S. _Biology, Physiology, and Sociology of Reproduction_ also, _Sexual Hygiene._ Ed. 11. Chicago, 1906.
Keyes, E.L. _Observations of the Persistence of Gonococci in the Male Urethra._ American Journal of the Medical Science, January, 1912.
Morrow, P.A. _Social Diseases and Marriage._ Philadelphia, 1904.
Taylor, R.W. _Practical Treatise on Genito-Urinary and Venereal Diseases and Syphilis._ Ed. 3. Philadelphia, 1904.