The theory of menstruation in early pregnancy, superfœtation and the site of insertion of the ovum / by J. Matthews Duncan.

Licence: Public Domain Mark

Credit: The theory of menstruation in early pregnancy, superfœtation and the site of insertion of the ovum / by J. Matthews Duncan. Source: Wellcome Collection.

Provider: 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.