A sixth hardback edition, revised and enlarged, of Allan Nevins and Henry Steele Commager's A Short History of the United States has been published by Knopf [$15.95], Four new Louisiana paperbacks on Southern history are John Richard Alden's The South in the Revolution, 1763—1789 [$6.95], Thomas Perkins Abernethy's The South in the New Nation, 1789—1819 [$6.95], C. Duncan Rice's The Rise and Fall of Black Slavery [$4,95], and Paul M. Gaston's The New South Creed [$4.95]. Princeton is offering a paperback edition of Constance McLaughlin Green's Washington, A History of the Capitol, 1800—1950 [$7.50]. Also among other new Princeton paperbacks: Daniel Calhoun's The Intelligence of a People [$5,95] and James A. Field, Jr. 's America and the Mediterranean World [$5.95]. The Ladies of Seneca Falls, The Birth of the Woman's Rights Movement is a Schocken Books' paperback [$4.95], while Chicago has issued a third cloth-and-paper edition of Stanley M. Elkins's Slavery, A Problem in American Institutional and Intellectual Life [$12.50 cloth, $3.95 paper].