Thesaurus siluricus : the flora and fauna of the Silurian period : with addenda (from recent acquistions) / by John J. Bigsby.

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Thesaurus siluricus : the flora and fauna of the Silurian period : with addenda (from recent acquistions) / by John J. Bigsby. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.