VIARDEL, Cosme. Observations sur la pratique des accouchemens, naturels, contre nature, & monstrueux. Paris: d'Houry père, 1748. 8° (194 x 112mm). Folding engraved portrait by Frosne after Du Guernie and 16 plates, 2 folding (tear in E7, lower margins lightly waterstained throughout, the plates rather more so). Contemporary French mottled sheep, gilt spine with red lettering piece (rubbed). Third edition. Blake p.473.