Philip Parker King, Sir Francis Darwin, Robert Fitzroy, Charles Darwin (1839). “Narrative of the Surveying Voyages of His Majesty's Ships Adventure and Beagle: Between the Years 1826 and 1836 ...”, p.604
Alexander Pope, John Wilson Croker, Whitwell Elwin, William John Courthope (1871). “The Works of Alexander Pope: New Ed. Including Several Hundred Unpublished Letters, and Other New Materials, Collected in Part by John Wilson Croker. With Introd. and Notes by Whitwell Elwin”, p.87