SERIES IV.—MUNICIPAL GOVERNMENT AND LAND TENURE. 600 pages. $3.50.

SERIES V.—MUNICIPAL GOVERNMENT, HISTORY AND POLITICS. 559 pages. $3.50.

SERIES VI.—THE HISTORY OF CO-OPERATION IN THE UNITED STATES. 540 pages. $3.50.

SERIES VII.—SOCIAL SCIENCE, MUNICIPAL AND FEDERAL GOVERNMENT. 628 pages. $3.50.

SERIES VIII—HISTORY, POLITICS, AND EDUCATION. 625 pages. $3.50.

SERIES IX.—EDUCATION, HISTORY, AND SOCIAL SCIENCE. 635 pages. $3.50.

EXTRA VOLUMES.

I. THE REPUBLIC OF NEW HAVEN. By Charles H. Levermore. $2.00.

II. PHILADELPHIA, 1681-1887. By Edward P. Allinson and Boies Penrose. $3.00.

III. BALTIMORE AND THE NINETEENTH OF APRIL, 1861. By George William Brown. $1.00.