This is a small handbook of convenient size, neatly bound and similar in content to some of the hospital formularies that are used in this country. It is intended primarily for use of postgraduate students who are unfamiliar with the armamentarium used in the treatment of tropical diseases. It contains the usual formulas for preparations, posologic tables and discussions of the treatment of many conditions, but principally those peculiar to the tropics. Its usefulness outside the tropics is limited more or less to that of a reference volume for the treatment of the occasional case of tropical diseases seen elsewhere. It contains tables of weights and measures, dilutions, strengths of solutions and food values, and blank pages for taking notes.