Prize essay
Subtitle: on the comparative economy of free and slave labour, in agriculture.
Series: American culture series -- 618.2.
Publisher: Committee on Essays, of the Frederick County Agricultural Society
Published: 1974
Place of publication: Frederick [Md.]
Language: eng
Number of pages: 20
Subjects: Slave labor; Slavery -- United States -- Controversial literature -- 1827
Notes: Microfilm. Ann Arbor, Mich., Xerox University Microfilms, 1974. 1 reel. 35 mm. (American Culture Series, reel 618.2)