There are 2 titles associated with this firm.

Potts, Ethelinda M. Moonshine . . . Containing Miscellaneous Trifles. London: John Rodwell [1812-1816, 1827-1854], Henry James McClary, 1833.
Potts, Ethelinda M. Moonshine . . . Containing Sketches in England and Wales. London: John Rodwell [1812-1816, 1827-1854], Henry James McClary, 1833.