Merk, Frederick; Merk, Lois Bannister. Manifest Destiny and Mission in American History: A Reinterpretation. New York: Alfred A. Knopf, 1963. First Edition. 
Blue cloth, bright gilt spine titles, sharp corners, tight, clean text, previous owner's last name in ink on the ffep. Good dust jacket with wear at the top edge but without significant chips or tears, now in a clear wrapper. Very good in good dust-jacket. Hardcover.
The author was professor emeritus of history at Harvard University. He argues from extensive research that the American sense of Manifest Destiny was not an expression of American nationalism, but one of Mission.
"One of his conclusions is that the overwhelming majority of the American people had no acquisitive urge for a continent or for an insular empire, but cherished, instead, the ideal of Mission, of setting an example of freedom to the world, of creating an image which other peoples might wish to copy." - publisher.