'A Journey in the South of New Holland', by W. Hovell and H. Hume, from Nouvelles Annales des Voyages, XXVIII, Paris, December 1825 Unit ID: 69-75 Date: December 1825
Alexander Humboldt. Examien Critique on the History of the Geography of the New Continent, n.d. 47pp. Unit ID: 2202-2218