On the signs of pregnancy during the earlier months of gestation; and on the existence of a new animal principle in the urine during that state / by James Stark.

Licence: Public Domain Mark

Credit: On the signs of pregnancy during the earlier months of gestation; and on the existence of a new animal principle in the urine during that state / by James Stark. 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.