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Credit
Observations on normal growth and development of the human body under systematized exercise : read in the Section on Physiology, First Pan-American Medical Congress, Washington, D.C., September 5-8, 1893 / by Henry G. Beyer. 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.