191.3 Johann Joachim BECHER. Actorum laboratorii chymici monacensis, seu physicć sub-terraneć... lib. 1. 8° Francofurti: Mauritii Georgii Weidmann 1681 Ferguson Young Wolfenbuttel Nat Union Cat Bibliotheque Nationale [Illustration:- Frontispiece engraving. 139x75mm. Re-engraved version of frontispiece to 1669 edition.]