An examination of that part of the evidence relative to cow-pox,which was delivered to the Committee of the House of Commons / by two of the surgeons of St. Thomas's Hospital [J. Birch and H. Cline]. To which is added, a letter to the author, from John Birch.

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An examination of that part of the evidence relative to cow-pox,which was delivered to the Committee of the House of Commons / by two of the surgeons of St. Thomas's Hospital [J. Birch and H. Cline]. To which is added, a letter to the author, from John Birch. Public Domain Mark. Source: Wellcome Collection.