Sexual physiology and hygiene : an exposition, practical, scientific, moral, and popular, of some of the fundamental problems in sociology / by R.T. Trall.

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Sexual physiology and hygiene : an exposition, practical, scientific, moral, and popular, of some of the fundamental problems in sociology / by R.T. Trall. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.