Ein schön lustig Trostbüchle von den Empfengknussen und Geburten der Menschen…

An improved version of Rösslin’s Swangern frawen. This contains the first true anatomical pictures in an obstetrics book. Rueff described smooth-edged forceps for delivery of a live baby, preceding Chamberlen, and a toothed forceps for extraction of the dead fetus. He developed a method of cephalic version combining internal and external manipulation. A Latin translation of his book, De conceptu et generatione hominis, was published by Froschauer in the same year. English translation, London, 1637.

The illustrations show contemporary ideas about mammalian embryology.