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Georgii VVolffgangi Wedelii, Med. Doctoris, Consiliarii ... Pharmaciae acroamaticae disputatio IX. De crocis, essentiis, elixiriis, extractis, & farinis, eodem praeside, / publicae disquisitioni subjecta à Christiano Andrea del Magdeburgensi, ... ad diem Januarii M DC LXXXVI. Public Domain Mark. Source: Wellcome Collection.