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Credit
A chemico-physiological essay : disproving the existence of an aeriform function in the skin, and pointing out, by experiment, the impropriety of ascribing absorption to the external surface of the human body / by Joseph Klapp. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)