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Credit
An inquiry into the small-pox, medical and political : wherein a successful method of treating that disease is proposed, the cause of pits explained, and the method of their preventions pointed out ; with an appendix, representing the present state of small-pox / by Robert Walker. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.