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Pharmacopoeia officinalis et extemporanea: or, a complete English dispensatory, in four parts. Containing I. The theory of pharmacy ... II. A description of the officinal simples ... III. The officinal compositions; being such of the London and Bates's [sic] dispensatory as are now in use ... IV. Extemporaneous prescriptions ... To which is added, an account of the common adulterations both of simples and compounds; with some marks to detect them by / By John Quincy. Public Domain Mark. Source: Wellcome Collection.