the whole was reproduced by the Military Intelligence Printing-Office. The work was, of course, hastily done, and later had to be revised, but for the moment it served its purpose well, and the Expeditionary Force was able to take with it the only complete map of that system in English in existence. In addition to the great number of combat, strategic, and physical maps covering the belligerent countries and the various theatres of war, complete sets of military maps of the neutral nations were also kept available, for there was never any certainty as to how far the conflagration might extend. While hostilities were in progress the subsection responded to a constant stream of demands for estimates of the military situation, of the enemy’s strength and resources, and for forecasts of his plans. An enormous amount of information relative to German and Austrian munitions, tanks, gas, aircraft, artillery, and infantry equipment was also codified and distributed in pamphlet form to those branches of the War Department particularly concerned. Statistical reports, showing, for example, the percentage of French and British officers wounded and killed during stated periods, were of great assistance to the War Department in determining the number of officers to be assigned to the various draft contingents and for figuring the replacements which would be required. A report showing the housing facilities for planes possessed by the French Air Service materially aided our own Department of Aeronautics. The rate of pay for prisoners of war was fixed by the Adjutant-General’s Department with the aid of tables furnished by this subsection. Nor did the work of the subsection end with the signing of the Armistice. If anything, it increased, for it was called upon to furnish all sorts of highly technical information for the use of the peace delegates. The most interesting and important data thus supplied was a translation, with copious notes, of a Russian document describing in great detail the growth of the movement for the political independence of Siberia, a complete plan for the organization of voting districts, the composition of scores of territorial councils and commissions, and the effect on political life in Siberia of the revolutions in European Russia.