Taken in the order of their subjects, the five works already contributed to this series are, "The Discovery of America, with some Account of Ancient America and the Spanish Conquest" (two volumes); "Old Virginia and her Neighbours" (two volumes); "The Beginnings of New England, or the Puritan Theocracy in its Relations to Civil and Religious Liberty;" "The American Revolution" (two volumes); and "The Critical Period of American History, 1783-1789." Allied with these books, though hardly taking a place in the series, is "Civil Government in the United States, Considered with some Reference to its Origins," "The War of Independence," it will thus be seen, is the least ambitious of all these historical works. "A History of the United States for Schools" is addressed to the same audience, and in so far may be considered a companion volume. What makes Mr. Fiske's histories just what they are? Another step backward in the stages of his own development will enable us to see, and the sub-title, "Viewed from the Standpoint of Universal History," of one of his earlier books, "American Political Ideas," will help towards an understanding of his power. It is due to the fact that he brings to his historical work on special subjects the broad philosophic and general view of a man who is much more than a specialist,--the scientific habit of mind which must look for causes when effects are seen, and must point out the relations between them. There could be no better preparation for the writing of history than the apparently alien study of the questions with which the names of Darwin and Spencer are inseparably associated. When Darwin's "Origin of Species" appeared, Mr. Fiske's own thought had prepared him to take the place of an ardent apostle of Evolution, and it is held that no man has done more than he in expounding the theory in America. Standing permanently for his work in this field are his books, "Excursions of an Evolutionist" and "Darwinism, and Other Essays." One of his first important works was "Outlines of Cosmic Philosophy" (1874), and in more recent years "The Destiny of Man" and "The Idea of God" speak forth very distinctly, not as interpretations, but as his own contributions to the progress of philosophic thought. One other phase of the use to which Mr. Fiske's mind has been put should surely be mentioned in any summary of his qualifications for writing histories. He is extremely fond of hearing and telling good stories. His book on "Myths and Myth-makers" (1872) gave early evidence of this fondness, and surely there is the very spirit of the lover of tales in the Dedication of the book, "To my dear Friend, William D. Howells, in remembrance of pleasant autumn evenings spent among were-wolves and trolls and nixies." Thus, besides the ability to see a story in all its bearings, Mr. Fiske has the gift of telling it effectively,--a golden power without which all the learning in the world would serve an historian as but so much lead.