The Russo-Mongolian Agreement of November 3, 1912, with its protocol; the Russo-Chinese Declaration of November 5, 1913, with the notes exchanged on that date; the Russo-Mongolian Railway Agreement of September 30, 1914, and the Tripartite Agreement between China, Russia, and Mongolia signed on June 7, 1915, together with the declaration of China and Russia, accompanying this last-mentioned document, are all printed in the Supplement to this number of the Journal and are deserving of more than a passing notice, for they undertake to define the relations of three great nations and recall historic events of considerable importance.