Charles Sturt (1834). “Two expeditions into the interior of Southern Australia: during the years 1828, 1829, 1830 and 1831 with observations on ... New South Wales”, p.12
George Catlin (1857). “Illustrations of the Manners, Customs, and Condition of the North American Indians: With Letters and Notes Written During Eight Years of Travel and Adventure Among the Wildest and Most Remarkable Tribes Now Existing ; with 360 Engravings, from the Author's Original Paintings”, p.23