Author:Johann Philipp Du Roi

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Johann Philipp Du Roi
German physician and botanist
Johann Philipp Du Roi


  • De paralysi gravissima femorum crurumque sanata (Disertation), 1764
  • Observationes botanicae, 1771
  • Die Harbcke'sche wilde Baumzucht, teils nordamerikanischer und anderer fremder, teils einheimischer Bäume, 1771-1772

Works by this author published before January 1, 1926 are in the public domain worldwide because the author died at least 100 years ago. Translations or editions published later may be copyrighted. Posthumous works may be copyrighted based on how long they have been published in certain countries and areas.