Rochester / Ann Arbor: The University of Rochester / University Microfilms, Inc. 1969. Hardcover. Unpublished thesis; vii, 276p., photocopied rectos only and cased into utilitarian buckram boards spine-titled. One instance of neat underlining on p.137, an otherwise very good copy. Foster was a force in the anti-slavery lecture circuit from the late 1830s through through the end of Reconstruction.