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Credit
Briefe über das Nervensystem an Prfessor [i.e. Professor] J. Müller / von Marshall Hall. Erster Brief. Ueber die Vis nervosa Haller's. 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.