title: Embryological drawings concerning his Theorie von der Generation sent by Caspar Friedrich Wolff to Albrecht von Haller in 1764.
mesh_terms: D004626:Embryology / Q000266:history*; D004741:Engraving and Engravings; D005858:Germany; D049671:History, 18th Century; D008488:Medical Illustration / Q000266:history*; D013557:Switzerland