I. The Land System in Maryland, 1720-1765. By CLARENCE P. GOULD. 75 cents; cloth $1.00. II. The Government of American Trade Unions. By T. W. GLOCKER. $1.00; cloth $1.25. III. The Free Negro in Virginia, 1619-1865. By J. H. RUSSELL. $1.00; cloth $1.25. IV. The Quinquennales: An Historical Study. By R. V. D. MAGOFFIN. 50 cents; cloth 75 cents. THIRTY-SECOND SERIES.--1914.--$4.00. (Complete in three numbers.) I. Jurisdiction in American Building-Trades Unions. By N. R. WHITNEY. $1.00. II. Slavery in Missouri, 1804-1865. By H. A. TREXLER. $1.25. III. Colonial Trade of Maryland. By M. S. MORRISS. $1.00; cloth $1.25. THIRTY-THIRD SERIES.--1915.--$4.00. (Complete in four numbers.) I. Money and Transportation in Maryland, 1720-1765. By CLARENCE P. GOULD. 75 cents; cloth $1.00. II. The Financial Administration of the Colony of Virginia. By PERCY SCOTT FLIPPIN. 50 cents; cloth 75 cents. III. The Helper and American Trade Unions. By JOHN H. ASHWORTH. 75 cents. IV. The Constitutional Doctrines of Justice Harlan. By FLOYD BAREILIA CLARK. $1.00; cloth $1.25. THIRTY-FOURTH SERIES.--1916.--$4.00. (Complete in four numbers.) I. The Boycott in American Trade Unions. By LEO WOLMAN. $1.00. II. The Postal Power of Congress. By LINDSAY ROGERS. $1.00. III. The Control of Strikes in American Trade Unions. By G. M. JANES. 75 cents; cloth $1.00. IV. State Administration in Maryland. By JOHN L. DONALDSON. $1.00; cloth $1.25. THIRTY-FIFTH SERIES.--1917.--$4.00. (Complete in three numbers.) I. The Virginia Committee System and the American Revolution. By J. M. LEAKE. $1.00; cloth $1.25. II. The Organizability of Labor. By W. O. WEYFORTH. $1.50. III. Party Organization and Machinery in Michigan since 1890. By A. C. MILLSPAUGH. $1.00; cloth $1.25. THIRTY-SIXTH SERIES.--1918.--$4.00. (Complete in four numbers.) I. The Standard of Living in Japan. By K. MORIMOTO. $1.25. II. Sumptuary Law in Nurnberg. K. R. GREENFIELD. $1.25; cloth $1.50. III. The Privileges and Immunities of State Citizenship. By R. HOWELL. $1.00; cloth $1.25. IV. French Protestantism, 1559-1562. By C. G. KELLY. $1.25; cloth $1.50. 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.