On the geological position of the Castoroides ohioensis / by James Hall ; also a description of the cranium of the same, by Jeffries Wyman.

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On the geological position of the Castoroides ohioensis / by James Hall ; also a description of the cranium of the same, by Jeffries Wyman. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.