4. How the Civil War was financed. D. R. Dewey, Financial History of the United States, pp. 298-333.
5. The mobilization of American finances during the World War. W. F. Willoughby, Government Organization in War Time and After, pp. 50-66; E. R. A. Seligman, Essays in Taxation (9th ed.), pp. 750-782.
6. Excises as a source of revenue. C. J. Bullock, Selected Readings in Public Finance, pp. 449-472.
7. The general property tax. F. W. Taussig, Principles of Economics, Vol. II, pp. 528-549.
8. The tariff as a source of revenue. C. J. Bullock, Selected Readings in Public Finance, pp. 425-448.
9. The single tax. E. R. A. Seligman, Essays in Taxation, pp. 66-99.
10. The wastefulness of the old appropriation system. P. S. Reinsch, Readings on American Federal Government, pp. 355-361.
11. State debts and debt limits. Massachusetts Constitutional Convention, 1917-1918, Bulletins, No. 15 (Constitutional Restrictions on State Debts).
12. Municipal debts and debt limits. Ibid., No. 14 (Constitutional Restrictions on Municipal Indebtedness).
13. Methods of borrowing: sinking funds vs. serial bonds. Ibid., No. 21 (Methods of Borrowing: Sinking Funds vs. Serial Bonds).