BIBLIOGRAPHY 297 



Cope, E. D. — Continued 



1884D. The history of the Oreodontidas. Amer. Naturalist, XVIII, pp. 280-282. 



1884E. Observations on the phylogeny of the Artiodactyla derived from American fossils. Ibid., XVIII, 



pp. 1034-1036. 

 1885. On the structure of the feet in the extinct Artiodactyla of North America. Proc. Amer. Assoc. Adv. 



Sci., 33d Meeting, Phila., 1884, pp. 482-490; Pal. Bull. no. 39. 

 1886A. On two new species of three-toed horses from the upper Miocene, with notes on the fauna of the 



Ticholeptus beds. Proc. Amer. Philos. Soc, XXIII, pp. 357-361. 

 1886B. The vertebrate fauna of the Ticholeptus beds. Amer. Naturalist, XX, pp. 367-369. 

 1886C. The Vertebrata of the Swift Current Creek region of the Cypress Hills. Ann. Rept. Geol. and Nat. 



Hist. Surv., Canada (n. s.), I, 1885, appendix to article C, pp. 79-85. 

 1887A. The classification and phylogeny of the Artiodactyla. Proc. Amer. Philos. Soc, XXIV, pp. 377-400. 

 1887B. The Perissodactyla. Amer. Naturalist, XXI, pp. 985-1007, 1060-1076. 

 1887C. The origin of the fittest. Essays on evolution. New York. 



1888. The Artiodactyla. Amer. Naturalist, XXII, pp. 1079-1095. 



1889A. The mechanical causes of the development of the hard parts of the Mammalia. Jour. Morph., Ill, 



pp. 137-277. 

 1889B. The Artiodactyla. Amer. Naturalist, XXIII, pp. 1 1 1-136. 

 1889C. The Vertebrata of the Swift Current River. II. Ibid., XXIII, pp. 151-155. 



1890. Scott and Osborn on the fauna of the Browns Park Eocene. Ibid., XXIV, pp. 470-472. 



1891. On Vertebrata from the Tertiary and Cretaceous rocks of the Northwest Territory. I, The species 



from the Oligocene or lower Miocene beds of the Cypress Hills. Geol. Surv. Canada, Contrib. 

 Can. Paleont., Ill, pp. 1-25. 



1894. Marsh on Tertiary Artiodactyla. Amer. Naturalist, XXVIII, pp. 867-869. 



1895. Baur on the temporal part of the skull, and on the morphology of the skull in the Mosasaurida; 



Ibid., XXIX, pp. 855-859. 



Dall, W. H. 



1898. A table of the North American Tertiary horizons, correlated with one another and with those of 

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Dall, W. H., and Harris, G. D. 



1892. Correlation papers, Neocene. Bull. U. S. Geol. Surv., no. 84, pp. 282-289. 

 Darton, N. H. 



1901. Preliminary description of the geology and water resources of the southern half of the Black Hills and 

 adjoining regions in South Dakota and Wyoming. Rept. U. S. Geol. Surv., XXI, pt. IV 

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1905. Preliminary report on the geology and underground water resources of the central Great Plains. 

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Darton, N. H., and Siebenthal, C. E. 



1910. Postcambrian sedimentary rocks. Geol. Atlas U. S. Geol. Surv., Folio no. 173, pp. 5-11. 

 Dawkins, W. B. 



1870. Fossil mammals in North America. Nature, II, pp. 119-120, 232-233. 

 Dollo, L. 



1889. Les artiodactyles. Rev. Quest. Sci., XXV, pp. 680-681. 

 Douglass, Earl 



1900 A. The Neocene lake beds of western Montana and descriptions of some new vertebrates from the Loup 

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1900B. New species of Merycochcerus in Montana. Pt. I. Amer. Jour. Sci. (4), X, pp. 428-438. 



1901A. New species of Merycochcerus in Montana. Pt. II. Ibid. (4), XI, pp. 73-83. 



1901B. Fossil Mammalia of the White River beds of Montana. Trans. Amer. Philos. Soc (n s ) XX 

 pp. 237-279. 



1903. New vertebrates from the Montana Tertiary. Ann. Carnegie Mus., II, pp. 145-199. 



1905. The Tertiary of Montana. Mem. Carnegie Mus., II, pp. 203-223. 



1906. Generic names of merycoidodonts. Science (n. s.), XXIV, pp. 565-567. 



