Keywords: Johann Trommsdorff 1799 Chemische Receptirkunst.jpg en Chemische Receptirkunst oder Taschenbuch für praktische Aerzte Erfurt Beyer und Maring 1799 Trommsdorf was a prolific author this particular work deals with pharmaceutical chemistry 1799 engraving Institution Chemical Heritage Foundation object history exhibition history credit line http //www chemheritage org/ Chemical Heritage Foundation accession number http //othmerlib chemheritage org/record b1066197~S6 RS131 9 T766 1799 Roy G Neville Historical Chemical Library http //www chemheritage org/ Chemical Heritage Foundation Image downloaded with permission from the Chemical Heritage Foundation as part of the Wikipedian in Residence initiative CHF-cooperation PD-old-100 Images from the Chemical Heritage Foundation 18th-century engravings Pharmaceutical chemistry |