A manual of materia medica and pharmacology. Comprising all organic and inorganic drugs which are or have been official in the United States Pharmacopoeia, together with important allied species and useful synthetics, especially designed for students of pharmacy and medicine, as well as for druggists, pharmacists, and physicians. By David M. R. Culbreth, Ph.G., M.D., professor of botany, materia media, and pharmacy, department of the University of Maryland, Baltimore, Md. Sixth edition, with four hundred and ninety‐two illustrations. Lea and Febiger, Philadelphia and New York, publishers. Price, $5.25