Tentamen sophisticon, a chemical essay, designed to shew the possibility of applying the powers of chemistry to an examination of several productions liable to be sophisticated or disguised. Interspersed with observations on the approved qualities of Ward's drop and pill, Dr. James's Powder for Fevers, counterfeit Magnesia Alba, and some other medicinal Substances. Whereto is annexed the Specimen or Plan of a Synopsis, including the chemical Structure, &c. of some pharmaceutical Preparations; and an easy Method of trying them for medicinal Purposes. By Edward Wallis [electronic resource].