The History of the European Fauna

by R. F. Scharff

Christ, H.—"Das Pflanzenleben der Schweiz," 1879.

Cole, G. J.—Borderland, "Irish Naturalist," vol. vi., 1897.

Credner, R.—Die Reliktenseen, "Petermann's Geog. Mitth.," 1887.

Croll, J.—"Climate and Time," 1875.

Darwin, C.—"Origin of Species," 6th ed., 1878.

Dawkins, W. Boyd.—a. "Early Man in Britain," 1880. b. "The British Pleistocene Mammalia," part A, Preliminary Treatise, 1878. c. The Former Range of the Reindeer in Europe, "Popular Science Review," vol. vii., 1868.

Drude, O.—Betrachtungen ii. d. hypothetischen vegetationslosen Einöden im temperirten Klima der Nördlichen Hemisphäre zur Eiszeit, "Petermann's Geog. Mitth.," vol. xxxv., 1889.

Emery, C.—On the Origin of European and North American Ants, "Nature," vol. lii., 1895.

Engler, A.—"Versuch einer Entwicklungsgeschichte d. extratrop. Florengebiete d. Nördlichen Hemisphäre," 1879.

Falsan, A.—"La Période Glaciaire," 1889.