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Credit
The plea of humanity and common sense, against two publications : one written by "a physician" incognito, advertised "The stammerer's hand-book," but entitled "A treatise on the nature and causes of stammering;" and the other by Mr. Yearsley, entitled, "Stammering, and other imperfections of speech, treated by surgical operations on the throat" / by James Wright. Public Domain Mark. Source: Wellcome Collection.
Provider
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.