1. 1939 Bats. Cambridge, p. 136.
2. 1911 A History of British Mammals. London, p. 41.
3. 1874 A History of British Quadrupeds. London, pp. 5-6.
4. 1896 Twenty-first annual report of Indiana Dept. Geology and Natural Resources, p. 21.
5. A New Method of Collecting Bats