A treatise on the materia medica, intended as a sequel to the Pharmacopoeia of the United States: Being an account of the origin, qualities and medical uses of the articles and compounds, which constitute that work, with their modes of prescription and administration.

Bigelow, who with Lyman Spalding, was largely responsible for the creation and publication in 1820 of the first U.S. pharmacopeia, published this valuable explanatory and supplementary volume two years later. It was probably essential reading for most users of the first U.S. pharamcopeia. Digital facsimile from the Internet Archive at this link.