The riddle of the Rhine : chemical strategy in peace and war : Victor Lefebure ; with a preface by Marshal Foch and an introduction by Field-Marshal Sir Henry Wilson. an account of the critical struggle for power and for the decisive war initiative, the campaign fostered by the great Rhine factories and the pressing problems which they represent, a matter of pre-eminent public interest concerning the sincerity of disarmament, the future of warfare, and the stability of peace / Lefebure, Victor. Oliver Wendell Holmes Collection (Library of Congress) DLC Chemical warfare. Gases, Asphyxiating and poisonous War use. World War, 1914-1918 Chemical warfare. UG447 .L4 1923a 623.445 LER Includes index. New York City : Chemical Foundation, Inc. c1923. c1923. 1923 Text 282 p., [5] leaves of plates : eng