"United States." . . "Adam Matthew Digital (Firme)" . . . . . "Nebraska and Kansas Speech of Mr. Cass, of Michigan, on the powers of the government over slavery in the territories"@en . . . . . . . "Nebraska and Kansas speech of Mr. Cass, of Michigan, on the powers of the government over slavery in the territories ; delivered in the Senate of the United States, Feb. 20, 1854"@en . . "Nebraska and Kansas speech of Mr. Cass, of Michigan, on the powers of the government over slavery in the territories : delivered in the Senate of the United States, Feb. 20, 1854" . . . . . . . "Nebraska and Kansas bill" . "Nebraska and Kansas. Speech of Mr. Cass, of Michigan, on the powers of the government over slavery in the territories" . "Speeches" . "Speeches"@en . . . .