Discovery that the veins of the bat's wing (which are furnished with valves) are endowed with rythmical [sic] contractility, and that the onward flow of blood is accelerated by each contraction / by T. Wharton Jones.

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Discovery that the veins of the bat's wing (which are furnished with valves) are endowed with rythmical [sic] contractility, and that the onward flow of blood is accelerated by each contraction / by T. Wharton Jones. 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.