"1796-05-06Z"^^ . . . "German mineralogist" . "Gehler, Johann Karl"@en . "1732-05-17Z"^^ . "Johann Carl Gehler (17 May 1732, G\u00F6rlitz \u2013 6 May 1796, Leipzig) was a German physician, mineralogist and anatomist.From 1751 to 1758, he studied medicine at the University of Leipzig, where he was a pupil of physician and botanist Christian Gottlieb Ludwig. While a student at Leipzig, he furthered his interest in natural sciences, publishing the mineralogical treatise, De characteribus fossilium externis (1757), as a result."@en . "Gehler, Johann Carl"@en . "1732Z"^^ . "1796Z"^^ .