On the meaning of the term 'Silurian system' as adopted by geologists in various countries during the last ten years / by Sir Roderick Impey Murchison.

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On the meaning of the term 'Silurian system' as adopted by geologists in various countries during the last ten years / by Sir Roderick Impey Murchison. 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.