Fisher, William Logan. The History of the Institution of the Sabbath Day, Its Uses and Abuses; with Notices of the Puritans, the Quakers, the National and other Sabbath Conventions, and of the Union Between Church and State. Philadelphia: John Pennington, 1845. vii, 194, [1] p.
Morton, Samuel George. Crania Ægyptiaca; or, Observations on Egyptian Ethnography, derived from Anatomy, History, and the Monuments. Philadelphia: John Pennington; London: Madden & Co., 1844. 67 p.