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Credit
The marriage guide, or, Natural history of generation : a private instructor for married persons and those about to marry, both male and female, in every thing concerning the physiology and relations of the sexual system and the production or prevention of offspring : including all new discoveries never before given in the English language / by Frederick Hollick. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)