The Era key to the U.S.P: a complete list of the drugs and preparations of the United States Pharmacopoeia, revision of 1890-3 : giving official titles, common names and synonyms of the drugs, chemicals and preparations of the Pharmacopoeia, with doses in apothecaries weights and measures with equivalents in metric terms
Era key to the United States Pharmacopoeia 1894
Helfand, William H., donor
Mellin's Food Company (Boston, Mass.)
Doliber-Goodale Co. (Boston, Mass.)
D.O. Haynes & Co., publisher.