AUTHORITIES CONSULTED 223 



Newton, R. B. See Preface. 



Nicholson, H. A. (with Lydekker). Manual of Palaeontology. 1889. 



O'Harra, Cleophas C. Badland Formations of the Black Hills Region. 



South Dakota School of Mines. Bulletin, November, 1910. 

 Oliver, F. W. Pteridosperms and Angiosperms. N.P. 1906. 

 Osborn, H. Fairfield, Professor Columbia University, Curator of Ver- 

 tebrate Palaeontology, American Museum of Natural History. 



Rise of the Mammalia in North America. A.A.A.S. 1893. 



The Ancylopoda. A.N. 1893. 



The Evolution of the Horse in America. CM. November, 1904. 



Hunting the Ancestral Elephant. CM. October, 1907. 



Ichthyosaurs. CM. 1905. 



The Dinosaurs of the Bone-Cabin Quarry. CM. September, 

 1904. 



Collaborator on Reptiles. Z.T.P. 1902. 



The Age of Mammals. 1910. 

 Owen, R. Palaeontology. 2nd ed., 1861. 



Parker, T. Jefferey. Elementary Biology. 3rd ed. reprinted 1900. 

 Parkin, John. Origin of Angiosperms. J.L.S. July, 1907. 

 Pelseneer, P. MoUusca. L.T.Z. 1906. 

 Pilsbry, H.A. Collaborator, Gastropoda. Z.T.P. 1900. 

 Poulton, E. B. Essays on Evolution. 1908. 



Pycraft, W. P. Archaeopteryx. N.S. October, 1893. March and 

 April, 1894. December, 1895. 



Story of Reptile Life. 1895. 



A History of Birds. 1910. 



Reed, F. R. C Brachiopods (Fossil). CN.H. 1895. 



Ridgeway, W. Origin and Influence of the Thoroughbred Horse. 



1905. 

 Sahsbury, R. D. (University of Chicago), with T. C Chamberlin. 



Geology. 1906. 

 Salter, J. W. British Trilobites. R.P.S. 1864-83. 

 Saporta, Le Comte. Le Monde des Plantes. 1879. 



(And A. F. Marion) L'Evolution du Regne vegetal. 1885. 

 Sargant, Miss Ethel. Early History of Angiosperms. B.G. 1905. 

 Scharff, R. F. History of the European Fauna. 1899. 



