The riddle of the Rhine, chemical strategy in peace and war : 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 / by Victor Lefebure ; with a prefance by Marshal Foch and an introduction by Field-Marshal Sir Henry Wilson.