DIONIS (Pierre). Cours d'opérations de chirurgie, démontrées au Jardin royal. Paris, chez la veuve d'Houry, 1777. In-8, eighth edition illustrated with a portrait of the author, a plate showing a surgical course, a folding view of the Jardin du Roi and 15 plates engraved out of text and numerous woodcuts in the text. Bound in full contemporary marbled calf with 5-ribbed spine. Handwritten bookplate on title page. (corners rubbed, small accident to lower headpiece). Joint: DIONIS (Pierre). Traité général des accouchemens, qui instruit de tout ce qu'il faut faire pour être habile accoucheur. Paris, Charles-Maurice d'Houry, 1718. In-8, first edition illustrated with a portrait of the author and 7 hors-texte plates. Bound in full contemporary basane, 5-ribbed spine. Handwritten bookplate on title page. (foxing, soiled frontispiece and plates, some wear to margins of first few leaves, faded binding with spine missing). Expert : Mr. Nicolas Asvisio