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Dissertatio historica de metallifodinarvm hartzicarvm prima origine et progressv et qvomodo ad Sereniss. : Brvnsvic et Lynaeb. dvces a. M CC XXXV. pervenerint. / Quam praeside viro clarissimo Dn. Henrico Meibomio, ... ; auctor Henricvs Hardovicus Knorn. Ad Diem 6. Martii anno M D C LXXX. Public Domain Mark. Source: Wellcome Collection.