576 THE AGE OF MAMMALS 



'09 Fossiles de Patagonie. 



Ann. Pah'out. (Marcellin Boule), Vol. IV, No. 1, 1909, pp. 1-28. 



Gaudry, A., and Boule, M. 



"88 Materiaux pour I'Histoire des Temps Quaternaires. Sieiiie Fasc. 



L'Elasinotherium. Paris, 1888. 

 '92 Materiaux pour I'Histoire des Temps Quaternaires. 4ieme Fasc. 



Les Oubliettes de Gargas. Paiis, 1892. 



Geikie, A. 



'81 Prehistoric Europe. London, 1881. 



'92 Address Brit. Ass. Ad. Sci., Edinburgh, 1892. 



Nature, Vol. XLVI, Aug. 4, 1892, pp. 317-323. 

 '93 Text-Book of Geology. London, 1893. 

 '99 Address to the Geological Section of the British Association for the 



Advancement of Science (on the age of the earth). 



Brit. Ass. Adv. ScL, Geol. Sect., Dover, 1899. 



Geikie, J. 



■94 The Great Ice Age and Its Eelation to the Antiquity of Man. 3d 

 ed., London, 1894. 



Gervais, P. 



'59 Zoologie et Paleontologie Francaises. 2e edit. Paris, 1859. 



'69 Zoologie et Paleontologie Generales, Paris, 1867-1869, pp. 1-245. 



Gidley, J. W. 



'00 A new Species of Pleistocene Horse from the Staked Plains of 



Texas. 



Bull Amer. Mas. Nat. Hist., Vol. XIII, No. 13, 1900, pp. 111-116. 

 '01 Tooth Characters and Revision of the North American Species of 



the Genus Equns. 



Ball. Amer. Mus. Nat. Hist., Vol. XIV, Art. ix, 1901, pp. 91-142. 

 '03 A new Three-toed Horse. 



Bull. Amer. Mus. Nat. Hist., Vol. XIX, Art. xiii, 1903, pp. 465-476. 

 '03 The Fresh-water Tertiary of Northwestern Texas, Amer. Mus. Ex- 

 pedition of 1899-1901. 



Bull. Amer. Mus. Nat. Hist., Vol. XIX, 1903, pp. 617-635. 

 '03 On Two Species of Plati/gonus from the Pliocene of Texas. 



Bull. Amer. Mus. Nat. Hist., Vol. XIX, Art. xiv, July 24, 1903, 



pp. 477-481. 

 '04 New or little known Mammals from the Miocene of South Dakota. 



Bull. Amer. Mus. Nat. Hist., Vol. XX, 1904, pp. 241-268. 

 '07 Revision of the Miocene and Pliocene Equid<e of North America. 



Bull. Amer. Mus. Nat. Hist, Vol. XXIII, Art. xxxv, Nov. 26, 1907, 



pp. 865-934. 

 '07 A New Horned Rodent from the Miocene of Kansas. 



Proc. U. S. Nat. Mus., Vol. XXXII, June 29, 1907, pp. 627-636. 



