Douglas William Jerrold, Blanchard Jerrold (1859). “Specimens of Douglas Jerrold's wit: together with selections, chiefly from his contributions to journals, intended to illustrate his opinions”, p.73
Samuel Johnson, James Boswell (1825). “The Table Talk of Dr. Johnson: Comprising Opinions and Anecdotes of Life and Literature, Men, Manners, and Morals”, p.20