Vol. 18 Parties and Slavery, by Theodore Clarke Smith, Ph.D., Prof. Am.
Hist Williams College.

Vol. 19 Causes of the Civil War, by Admiral French Ensor Chadwick,
U.S.N., recent Pres. of Naval War Col.

Vol. 20 The Appeal to Arms, by James Kendall Hosmer, LL.D., recent
Librarian Minneapolis Pub. Lib.

Vol. 21 Outcome of the Civil War, by James Kendall Hosmer, LL.D., recent Lib. Minneapolis Pub. Lib.

GROUP V.

NATIONAL EXPANSION

Vol. 22 Reconstruction, Political and Economic, by William Archibald
Dunning, Ph.D., Prof. Hist, and Political Philosophy Columbia Univ.

Vol. 23 National Development, by Edwin Erle Sparks, Ph.D., Prof.
American Hist. Univ. of Chicago.

Vol. 24 National Problems, by Davis R. Dewey, Ph.D., Professor of
Economics, Mass. Institute of Technology.

Vol. 25 America as a World Power, by John H. Latane, Ph.D., Prof. Hist.
Washington and Lee Univ.