By David Y. Thomas, Ph.D. Price, $2.00.
VOLUME XXI, 1904. 746 pp. Price, cloth, $4.50.
1. [54] *Treaties, their Making and Enforcement.
By Samuel B. Crandall, Ph.D. Price, $1.50.
2. [55] The Sociology of a New York City Block.
By Thomas Jesse Jones, Ph.D. Price, $1.00.
3. [56] Pre-Malthusian Doctrines of Population.
By Charles E. Stangeland, Ph.D. Price, $2.50.