VIARDEL Observations on the practice of natural, unnatural & monstrous childbirths with a very easy method to help women in all kinds of childbirths without using hooks, no instrument but the one hand. Paris, Couterot, 1671, in-12, 22 ff - 371 pp, brown calf, spine ribbed, stamp (worn binding, title page faded). FIRST EDITION. With 14 hors-texte plates. Cosme Viardel was the surgeon of Queen Marie-Thérèse, but also a renowned obstetrician. Library of Dr. Leclerc on the title. INCOMPLETE OF THE FRONTISPIECE. Some foxing.