William Cowper, Robert Southey (1836). “Miscellaneous poems. Olney hymns. Anti-Thelyphthora. Table talk and other poems. Translations from Vincent Bourne”, p.28
William Cowper, James Thomson (1832). “The Works of Cowper and Thompson: Including Many Letters and Poems Never Before Published in this Country. With a New and Interesting Memoir of the Life of Thomson”, p.94