Pharmacopœia officinalis & extemporanea. [electronic resource] : Or, a complete English dispensatory, in four parts. Containing I. The theory of pharmacy, and the several Processes therein. II. A description of the officinal simples, with their Virtues and Preparations, Galenical and Chymical. III. The officinal compositions, according to the last Alterations of the College; together with some others of Uncommon Efficacy, taken from the most Celebrated Authors. IV. Extemporaneous prescriptions, distributed into Classes suitable to their Intentions in Cure. By John Quincy M.D.