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Cover illustration: An image of a frog-man.
Sam DeVincent Collection of Illustrated American Sheet Music, ca. 1790-1980, Archives Center, National Museum of American History
Smithsonian Institution, National Museum of American History : Archives Center. P.O. Box 37012, Suite 1100, MRC 601, Constitution Ave., between 12th and 14th Sts., N.W., Washington, D.C. 20013-7012. Call 202-633-3270 for appointment. Fax: 202-786-2453