Within the military and civic Revolution arose another territorial revolution. When in 1778 George Rogers Clark with his few score frontiersmen slipped down the Ohio River and picked up the little British towns of Kaskaskia, Cahokia, and Vincennes, he was blazing the trail into the West, and opening that vast country to millions of Americans still to be born or adopted, till they would in the end rule the republic. Because of Rogers Clark, or rather of the westward vision of the great men of that time, Great Britain gave up the Northwest, and then yielded the Southwest. With all its boldness and courage, the Revolution did not make a complete nation: to become a world power, it was necessary to cross the mountains and bind the Mississippi to the sea. And the man of that time, who was at the same time eastern and western, who fought the French and took up lands and planned roads and canals beyond the mountains, was George Washington, the greatest soldier, best statesman, and most clear-sighted business man of the Revolution. [Illustration: GEORGE ROGERS CLARK An American general who in 1778 captured Vincennes from the British. It was soon recaptured; but Clark took it again after a terrible march across country in midwinter. He then conquered all the country near the Wabash and Illinois rivers.] [Illustration: MERIWETHER LEWIS Companion of William Clark in his western explorations.] SUPPLEMENTARY READING.--“American Revolution,” Claude H. Van Tyne; “American Revolution,” John Fiske; “American Revolution” (3 vols.), George Otto Trevelyan; “Struggle for American Independence” (2 vols.), S. G. Fisher; “George Washington” (5 vols.), John Marshall; “American Statesmen” series (16 vols.); “Literary History of the American Revolution” (2 vols.), Moses Coit Tyler; “Paul Jones,” Norman Hapgood; “Letters and Memoirs,” Madame Rediesel; “The Spy,” James Fenimore Cooper; “Hugh Wynne,” S. Weir Mitchell; “The Partisan,” William Gilmore Simms; “Alice of Old Vincennes,” James Maurice Thompson. THE MENTOR ISSUED SEMI-MONTHLY BY The Mentor Association, Inc. 381 Fourth Ave., New York, N. Y. Volume 1 Number 43 ANNUAL SUBSCRIPTION, FOUR DOLLARS. SINGLE COPIES TWENTY CENTS, FOREIGN POSTAGE, 75 CENTS EXTRA. CANADIAN POSTAGE, 50 CENTS EXTRA. ENTERED AT THE POST OFFICE AT NEW YORK, N. Y., AS SECOND-CLASS MATTER. COPYRIGHT, 1913, BY THE MENTOR ASSOCIATION, INC., PRESIDENT AND TREASURER, R. M. DONALDSON; VICE-PRESIDENT, W. M. SANFORD; SECRETARY, L. D. GARDNER. _Editorial_ In the early part of the nineteenth century the United States Government realized the importance of having a record on canvas of the nation’s great historical events, and several painters of that day produced pictures that hold places of honor in our Government buildings. John Trumbull was the foremost of these painters. * * * * *