SOUTH DAKOTA SCHOOL OF MINES 169 



Osborn, H. F. Ten Years, Progress in the Mammalian 

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 pp. 199-229. Reprinted from the Comte-Rendu of the Inter- 

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 1904. 



Peterson, O. A. Osteology of Oxydactylus. Carnegie 

 Mus. Ann., vol. 2, 1904, pp. 434-476, pis. IV-XV. 



Darton, N. H. Preliminary Report on the Geology 

 and Underground Water Resources of the Central Great 

 Plains. U. S. Geol. Surv., Prof. Paper, No. 32, 1905, 433 

 pp., 72 pis. including maps. 



Osborn, H. F. Western Explorations for Fossil Verte- 

 brates. Pop. Sci. Mo., vol. 67, 1905, pp. 561-568. 



Osborn, H. F. Present Problems of Paleontology. Pop. 

 Sci. Mo., vol. 66, 1905, pp. 226-242. 



Peterson, O. A. Description of New Rodents and Dis- 

 cussion of the Origin of Daemonelix. Carnegie Mus., Mem., 

 vol. 2, 1905, pp. 139-202, pis. XVII-XXI. 



Reagan, A. B. Some Geological Observations on the 

 Central Part of the Rosebud Indian Reservation, South 

 Dakota. Am. Geol., vol. 36, 1905, pp. 229-243, 1 map. 



Matthew, W. D. Hypothetical Outline of the Contin- 

 ents in Tertiary Times. Am. Mus. Nat. Hist., Bull., vol. 22, 

 1906, pp. 353-383, 7 pis. 



Matthew, W. D. and Gidley, J. W. New or Little 

 Known Mammals from the Miocene of South Dakota. Bull. 

 Am. Mus. Nat. Hist., vol. 22, 1906, pp. 135-153. 



Merrill, G. P. Contributions to the History of Am- 

 erican Geology. U. S. Nat. Mus., Ann. Rept., 1904, pp. 

 189-733, 37 pis. (Pub. 1906). 



Osborn, H. F. The Causes of Extinction of Mammalia. 

 Am. Nat., vol. 40, 1906, pp. 769-795 and 829-859. 



Peterson, O. A. The Agate Spring Fossil Quarry. 

 Carnegie Mus., Ann., vol. 3, 1906, pp. 487-494, 1 pi. 



Gidley, James W. Revision of the Miocene and Plio- 

 cene Equidae of North America. Am. Mus. Nat. Hist., Bull., 

 vol. 23, 1907, pp. 875-934. 



