VOLUME XXXI, 1908. 575 pp. Price, cloth, $4.00.

1. [81] Private Freight Cars and American Railroads.

By L. D. H. WELD, Ph.D. Price $1.50.

2. [82] Ohio before 1850.

By ROBERT E. CHADDOCK, Ph.D. Price, $1.50.

3. [83] Consanguineous Marriages in the American Population.

By GEORGE B. LOUIS ARNER, Ph.D. Price, 75 cents.

4. [84] Adolphe Quetelet as Statistician.

By FRANK H. HANKINS, Ph.D. Price, $1.25.