Vol. 17 Westward Extension, by the late George Pierce Garrison,
Ph.D., formerly Prof. Hist., Univ. of Texas.

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

Vol. l9 Causes of the Civil War, by Rear-Admiral French Ensor
Chadwick, U.S.N., retired former Pres. of Naval War College.

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

Vol. 21 Outcome of the Civil War, by James Kendall Hosmer, LL.D.


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 Erie Sparks, Ph.D., Pres. Pa.
State College.

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

Vol. 25 America as a World Power, by John H. Latane, Ph.D., Prof.
Am. Hist., John Hopkins University.