The Calhoun Revolution: Its Basis and Its Progress. Speech ... Delivered in the United States Senate, December 14, 1859

Speech of Hon. James R. Doolittle, of Wisconsin, on the Lincoln-Johnson Policy of Restoration;

Letters of Carl Schurz, B. Gratz Brown, James S. Rollins, G. G. Vest, Et Al., Missourians, From the Private Papers and Correspondence of Senator James Rood Doolittle of Wisconsin

Douglas and Popular Sovereignty: Speech of Carl Schurz, of Wisconsin, in Hampden Hall, Springfield, Mass., January 4, 1860. Also Remarks of Senator Doolittle, of Wisconsin, on the Occasion of the Late Anniversary of the Landing of the Pilgrims, as Celebrated by the New England Society of the City of New York, December 22, 1859

Speech of the Hon. James R. Doolittle, of Wisconsin, on the Bill to Organize the Territory of Arizuma: Delivered in the Senate of the United States, December 27, 1860

The Calhoun Revolution

Courts Cannot Change the Constitution: Speech of Hon. J.R. Doolittle, of Wisconsin : in the United States Senate, February 24, 1860

The Money Question Again, with Some New Thoughts Thereon: 3 Phases