Cobb, Howell, in Congress with Lincoln, see vol. i.; on "making better terms out of the Union than in it"; in Buchanan's cabinet; candidate for presidency of South; resigns from cabinet. Cochrane, General John, nominated for Vice-President, see vol. ii. Cold Harbor, battle of, see vol. ii. Colfax, Schuyler, expects Douglas to join Republicans, see vol. i.; in House in 1861; on Lincoln's tenacity, see vol. ii.; announces passage of thirteenth amendment. Collamer, Jacob, in Congress with Lincoln, see vol. i.; vote for, in Republican Convention of 1860; in Senate in 1861. Colonization, favored by Lincoln, see vol. i., see vol. ii. Compromise of 1850, history of, see vol. i. Confederate States, formed by convention, see vol. i.; organization of; sends commissioners to United States; its envoys rejected by Lincoln; prepares to seize Fort Sumter; amused at Lincoln's call for volunteers; receives Virginia; belligerency of, recognized by England and France; refusal of Lincoln to receive Stephens embassy from, see vol. ii.; sells bonds in England; dealings of supposed emissaries from, with Greeley; refusal of Lincoln to negotiate with; dealings of Blair with; sends commissioners; conference of Lincoln and Seward with commissioners of; government of, collapses. Congress, proposes amendment to Constitution to protect slavery, see vol. i.; counts electoral votes; extra session called; votes to support Lincoln; creates Committee on Conduct of War; discusses battle of Shiloh; passes Crittenden resolution disavowing slavery as cause of war, see vol. ii.; passes bill freeing slaves used in war; refuses to reaffirm Crittenden resolution; passes bill for emancipation in District; prohibits officers to return fugitive slaves; abolishes slavery in Territories, etc.; passes act freeing slaves of rebels; passes act to arm negroes; fails to provide equal pay; ignores Lincoln's wishes to conciliate Border States; passes resolution to cooperate with States adopting emancipation; unpopularity of Lincoln with; continues in 1862 to oppose Lincoln; fails to pass bill offering compensated emancipation to Missouri; character of, in 1863; accepts Representatives from reconstructed Louisiana; jealous of Lincoln's plan of reconstruction; desires to control matter itself; passes reconstruction bill; wishes to supplant Lincoln by Chase; creates lieutenant-general; refuses to recognize electors from Southern reconstructed States; fails to adopt thirteenth amendment; after election of 1864, passes amendment. Conkling, James C., letter of Lincoln to, see vol. ii. Conkling, Roscoe, in House in 1861, see vol. i.