— 39 — 



— Restoration of extinct Vertebrates, from tlic American Museum of 

 Natural History. Cambridge, 1898, in 8". 



— Wind River and Bridger Beds in tiie Huerfano Lake basin. 1897, 

 in 8«. 



— Modification and Variation and the Limits of organic Selection. 1897, 

 in 8". 



— A Division of the Eutlieriau Mammals into tlie Mesoplacentalia and 

 Cenoplacentalia, in 8". 



— Ceuozoic Mammal Horizons of western North America. Washington, 

 1909, in 80. 



— The four inseparable Factors of Evolution. 1908, in 8'\ 



— Mountain Goat hunting with the Camera, N. York, 1906, in 8". 



— Mémoires présentés au congrès de Paris. Des méthodes précises 

 mises actuellement en oeuvre dans l'étude des vertébrés fossiles des Etats- 

 Unis d'Amérique. Paris, 1901, in 8". 



— Ten Years' Progress in the Mammalian Paleontology of North Ame- 

 rica. 1905, in 8". 



— Coincident Evolution through recti gradations. 1908, in 8". 



— To the Philosophic Zoologist. 1909, in 8". 



— The Epidermis of an Iguanodont Dinosaur. 1909, in 8". 



— Evolution as it appears to the Paleontologist. 1907, in 8". 



— Recent Zoopaleontology, new Vertebrates of the Mid-cretaceous. 



1902, in 8". 



■— Triassic Ichthyosaurs from California and Nevada. 1902, in 8". 



— A remarkable new Mammal from Japan. Its Relationship to the 

 Californian genus Desmostylus, Marsch 1902, in 8". 



— On the Age of the Belly River Series or Formation in Canada. 



1903, in 8. 



— The present Problems of Paleontology. 1904, in 8". 



— Additional Discoveries in Egypt. 1903, in 8". 



— Age of the typical Judith River Beds. 1903. 



— The Sauropoda. 1904, in 8°. 



— A horned eocene ungulate from Egypt. 1902, in 8**. 



— On the primary Division of the Reptilia into two sub-Classes, Sinap- 

 sida and Diapsida. 1903, in 8^ 



— Field Expeditions during the past Season, 1904, in 8". 



— Correlation of the Cenozoic throught its Mammahan Life. 1910, in 8*^. 



— Trituberculy: A Review dedicated to the Late Professor Cope. 1897, 

 in 4". 



