The prosecution of the trusts may be followed in "Trust Laws and Unfair Competition" (Government Printing Office, 1916). Much useful material is contained in "Trusts, Pools and Corporations", edited by W. Z. Ripley (1916). W. H. Taft in "The Anti-Trust Law and the Supreme Court" (1914) defends the Sherman Act as interpreted by the courts during his administration. The progress of social and industrial justice is outlined in "Principles of Labor Legislation" (1916), by John R. Commons and John B. Andrews. The problems of conservation and the history of governmental policy are set forth by C. R. Van Hise in "The Conservation of Natural Resources in the United States" (1910). The "American Year Book" for the years 1910 to 1919 and the "New International Year Book" for the years 1907 to 1919 are invaluable sources of accurate and comprehensive information on the current history of the United States for the period which they cover. Willis Fletcher Johnson's "America's Foreign Relations", 2 vols. (1915) is a history of the relations of the United States to the rest of the world. A shorter account is given in C. R. Fish's "American Diplomacy" (1915). But much of the best material for the historical study of the first decade and a half of the twentieth century is to be found in the pages of the magazines and periodicals published during those years. "The Outlook", "The Independent", "The Literary Digest", "Collier's", "The Review of Reviews", "The World's Work", "Current Opinion", "The Nation", "The Commoner", La Follette's "Weekly"--all these are sources of great value. The Outlook is of especial usefulness because of Mr. Roosevelt's connection with it as Contributing Editor during the years between 1909 and 1914. End of Project Gutenberg's Theodore Roosevelt and His Times, by Harold Howland