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Dissertationes in novam, tutam, ac utilem methodum inoculationis, seu transplantationis variolarum / Prima methodus auctoritate Regiae Majestatis Brittannicae comprobata 28 Julii 1721 & publicata cum criticis notis ... a Jacobo à Castro ... Altera methodus praelecta a Gualtero Harris. Tertia Byzantina dicta ... publice ventilata ab Antonio le Duc. Public Domain Mark. Source: Wellcome Collection.