THIRTY-SEVENTH SERIES.—1919.—$4.25.
(Complete in four numbers.)
I. Unemployment and American Trade Unions. By D. P. Smelser, Jr. $1.25.
II. The Labor Law of Maryland. By M. H. Lauchheimer. $1.25; cloth $1.50.
III. The American Colonization Society, 1817-1840. By E. L. Fox. $2.00; cloth $2.25.
IV. The Obligation of Contracts Clause of the United States Constitution. By W. B. Hunting. $1.00; cloth $1.25.
THIRTY-EIGHTH SERIES.—1920.—$4.25.
(Complete in three numbers.)
I. The United States Department of Agriculture. By W. L. Wanlass. $1.25; cloth $1.75.
II. The Amalgamated Association of Iron, Steel and Tin Workers. By J. S. Robinson. $1.50; cloth $2.00.
III. The Employment of the Plebiscite in the Determination of Sovereignty. By J. Mattern. $1.50.
THIRTY-NINTH SERIES—1921.—$5.75.
(Complete in three numbers.)