Rare Books
The efficacy and extent of true purgation. : Shewing, I. What this operation is; not as vulgarly understood. II. How performed in human body. III. By what means fitly to be done. IV. When; how oft; and in what cases to be used: and what to be avoided; in this most frequent and helpful administration. Distinguished from promiscuous evacuations; iujuriously [sic] procured, and falsly reputed purging
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