He was born in Schweinfurt. In 1646 Metzger obtained the
Magister Artium degree from the
University of Jena under
Gottfried Möbius with a thesis entitled:
Suppressionem mensium. In 1650, he obtained his
medical doctorate from the
University of Basel under
Johann Jakob von Brunn with a thesis entitled:
Disputatio medica inauguralis de catarrho suffocativo. In 1661 Metzger was appointed to the
University of Tübingen by
Eberhard III, Duke of Württemberg (1614–74) to improve its teaching of
anatomy and surgery. From 1681 to 1688 he also directed the university's
Hortus medicus, which has subsequently evolved into the
Botanischer Garten der Universität Tübingen. In 1688 its direction passed to Metzer's student,
Rudolf Jacob Camerer. He died in Tübingen in 1687. ==Selected works==