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The influence of metallic tractors on the human body, in removing various painful inflammatory diseases ... Lately discoverd by Dr. [Elisha] Perkins ... and demonstrated in a series of experiments ... By which the importance of the discovery is fully ascertained, and a new field of enquiry opened in the modern science of galvanism, or, animal electricity / by Benjamin Douglas Perkins. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.