POLITICAL TEXT-BOOK FOR 1860: COMPRISING A BRIEF VIEW OF PRESIDENTIAL NOMINATIONS AND ELECTIONS: INCLUDING ALL THE NATIONAL PLATFORMS EVER YET ADOPTED: ALSO, A HISTORY OF THE STRUGGLE RESPECTING SLAVERY IN THE TERRITORIES, AND OF THE ACTION OF CONGRESS AS TO THE FREEDOM OF THE PUBLIC LANDS, WITH THE MOST NOTABLE SPEECHES AND LETTERS ( OF MESSRS. LINCOLN, DOUGLAS, BELL, CASS, SEWARD, EVERETT, BRECKINRIDGE, |