By Philip K. Hitti, Ph.D. Price, $4.00.

VOLUME LXIX. 1919. 489 pp. Price, cloth, $4.00.

1. [164] Railway Monopoly and Rate Regulation.

By Robert J. McFall, Ph.D. Price, $2 .00.

2. [165] The Butter Industry in the United States.

By Edward Wiest, Ph.D. Price, $2.00.

VOLUME LXX. 1916. 540 pp. Price, cloth, $4.50.

[166] Mohammedan Theories of Finance.

By Nicolas P. Aghnides, Ph.D. Price, $4.00.

VOLUME LXXI. 1916. 476 pp. Price, cloth, $4.00.