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Credit
Annales de l'Observatoire de Paris, publiées par O.-S. Leverrier, directeur de l'Observatoire. Tomes I et II, in-4o avec figures, Paris, Mallet-Bachelier, 1855-1856 : article / de J.-B. Biot. Public Domain Mark. Source: Wellcome Collection.
Provider
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.