William Cowper, Henry Stebbing (1843). “The Complete Poetical Works of William Cowper, Esq: Including the Hymns and Translations from Madame Guion, Milton, Etc., and Adam; a Sacred Drama; from the Italian of Gio. Battista Andreini, with a Memoir of the Author”, p.183
Felix Klein (1893). “The Evanston Colloquium: Lectures on Mathematics Delivered from Aug. 28 to Sept. 9, 1893 Before Members of the Congress of Mathematics Held in Connection with the World's Fair in Chicago at Northwestern University, Evanston, Ill”