This is the first year-book of the World Association of Esperantist Physicians, an association inaugurated at the Fourth International Esperantist Congress at Dresden, August, 1908. It contains a preface by Dr. Zamenhof, an account of the origin of the association, by the president, Professor Dor, of Lyons, and a summary by the secretary, Dr. Robin, of Warsaw, of what the association has accomplished. The list of officers and members occupies 23 pages, the total number of members at the date the book went to press being 428, though it is said that some hundreds have been since added. Dr. H. F. A. Thalwitzer writes on "Esperanto and the Red Cross," and Dr. F. Uhlmann-Huttwil on "Esperanto Medical Nomenclature." A table of national moneys, and their relation to the international money system devised by the Esperantists, is added. The booklet contains a portrait of Dr. L. L. Zamenhof, inventor of the