Furness, W. H. (1851). The moving power: A discourse delivered in the First Congregational Unitarian church in Philadelphia, Sunday morning, Feb. 9, 1851, after the occurrence of a fugitive slave case. Philadelphia: Merrihew and Thompson, Printers.

Furness, William Henry. The Moving Power: A Discourse Delivered in the First Congregational Unitarian Church in Philadelphia, Sunday Morning, Feb. 9, 1851, After the Occurrence of a Fugitive Slave Case. Philadelphia: Merrihew and Thompson, Printers, 1851.

Furness, William Henry. The Moving Power: A Discourse Delivered in the First Congregational Unitarian Church in Philadelphia, Sunday Morning, Feb. 9, 1851, After the Occurrence of a Fugitive Slave Case. Philadelphia: Merrihew and Thompson, Printers, 1851.