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 410 other countries." The work was translated into German by Mittermaier, and found a warm welcome in Europe. Lieber was interested all through his life in the subject of penal law. When De Beaumont and De Tocqueville published their report on American prisons, they requested him to translate it into English, and he did so in 1833, adding copious notes, for which he received the thanks of some of our leading jurists. The King of Prussia desired to appoint him inspector general of prisons, with the permission to lecture on penology in the university.

In his later years Lieber's attention was especially directed to the subject of international law. The following words of the late Dr. Bluntschli tell of his great activity in this direction: "Lieber had great influence, I may add, in founding the Institut de Droit International, which was started in Ghent in 1873, and forms a permanent alliance of leading international jurists from all civilized nations, for the purpose of working harmoniously together, and thus serving as an organ for the legal consciousness of the civilized world. Lieber was the first to propose and to encourage the idea of professional jurists of all nations thus coming together for consultation, and seeking to establish a common understanding. From this impulse proceeded Rolin-Jacquemyn's circular letter, drawn up in Ghent, calling together a number of men, eminent for their learning. This latter proposal to found a permanent academy of international law met with general acceptance, but this was merely a further development of the original idea of Lieber, which was at the bottom of the whole scheme. His notion was now approved and the efficiency of the association was thus assured for the future."

Lieber's contributions to military law form the greatest work of his later years. At the instance of President Lincoln he prepared Instructions for the Government of Armies of the United States in the Field, which being approved by a board of officers and by the President, were published in 1863, as General Orders, No. 100. This work, the first codification of International Articles of War, forms a permanent addition to military law. The adoption of the code brought Lieber into close relations with the War Department at Washington, and he became its adviser in all matters relating to it. The codification was received with great favor abroad. It suggested to Dr. Bluntschli the idea of codifying the laws of war and the law of nations. His letter to Lieber is printed as a preface to the International Code; and he valued the instructions for the armies so highly that he had them published in full as an appendix to it. In 1863, at the request of General Halleck, Lieber prepared an essay on Guerrilla Parties which was received so favorably by the Government that an attempt was made to have a chair on the law and