Footnote 7: “The Revival of Naval History,” _Contemporary Review_. November, 1917. While the term “political pamphlet” suggests the influence of the book abroad, it is obviously inappropriate in describing its purpose and method of treatment. Footnote 8: “The Kaiser’s Dreams of Sea Power,” Archibald Hurd, _Fortnightly Review_, August, 1906. Footnote 9: “From Sail to Steam,” p. 303. Footnote 10: “Captain Romeo Bernotti,” letter to the editor, April 25, 1918. Footnote 11: “A Great Public Servant,” _The Outlook_, January 13, 1915. Footnote 12: “From Sail to Steam,” p. 288. Footnote 13: “The Influence of Sea Power upon History,” pp. 1–2, 8–10. Footnote 14: “Naval Administration and Warfare,” Objects of the Naval War College (1888), pp. 193–194, 233–240. Footnote 15: In a preceding passage the author shows that American naval thought has been preoccupied with problems of material.—EDITOR. Footnote 16: “The Influence of Sea Power upon History,” pp. 25–59. Mr. S. G. W. Benjamin has pointed out (N. Y. _Times_ Book Review, Feb. 2, 1902) that it was in the preface and opening chapter of this book, “comprising only eighty-nine pages, that Captain Mahan brought forward his famous presentation of the theory about the influence of sea power on empire.” The present selection includes the major part of the first chapter.—EDITOR. Footnote 17: For the author’s later opinion on the need of a navy, see pp. 355–357.—EDITOR. Footnote 18: Written before 1890.—EDITOR. Footnote 19: By a base of permanent operations “is understood a country whence come all the resources, where are united the great lines of communication by land and water, where are the arsenals and armed posts.” Footnote 20: “Naval Administration and Warfare,” pp. 199, 206. For the distinction drawn, see also pp. 4, 12.—EDITOR. Footnote 21: “Naval Strategy,” pp. 31–53. Footnote 22: An interesting instance of the method and forethought which cause German naval development of all kinds to progress abreast, on parallel lines, is found in the fact that by the time the three Dreadnoughts laid down in 1911 are completed, and with them two complete Dreadnought squadrons of eight each, which probably will be in 1914, the Kiel Canal will have been enlarged to permit their passage. There will then be a fleet of thirty-eight battleships; including these sixteen, which will be stationed, eight in the North Sea, eight in the Baltic, linked for mutual support by the central canal. The programme contemplates a continuous prearranged replacing of the present pre-Dreadnoughts by Dreadnoughts. Footnote 23: See map on page 278. Footnote 24: “Naval Strategy,” pp. 130–163. Footnote 25: “Naval Strategy,” pp. 166–167. For illustration and further discussion of strategic lines, see “General Strategy of the War of 1812,” in this volume, pp. 229–240.—EDITOR. Footnote 26: