On the existing state of our knowledge of vaccination and revaccination as preventative of small pox : being a comprehensive practical examination of the subject / by Alexander Knox.

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On the existing state of our knowledge of vaccination and revaccination as preventative of small pox : being a comprehensive practical examination of the subject / by Alexander Knox. 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.