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99 



Cope (Edward Dwight). On some Eocene Mammals obtained by Hayden's 

 Geological Survey of 1872. (Tract.) 8vo. Philaddjjhia, 1873. 



On some of Prof. Marsh's criticisms. (Tract.) 8vo. Salem, 1873. 



. On the Age of the Coal series of Bitter Creek. (Tract.) 



8vo, Philadelphia, 1873. 



. On the Elat-clawed Carnivora of the Eocene of "Wyoming. 



(Tract.) 8vo. Philadelphia, 1873. 



. On the Osteology of the Extinct Tapiroid Hyracliyus. (Tract.) 



8vo. Philadel])hia, 1873. 



. On the Primitive Types of the Orders of Mammalia Educabilia. 



(Tract.) 8vo. Philadelphia, 1873. 



. On the short-footed Ungulate of the Eocene of Wyoming. (Tract.) 



8vo. Philadelphia, 1873. 



. On two new Perissodactyles from the Bridger Eocene. (Tract.) 



8vo. Philadelphia, 1873. 



. Synopsis of new Yertebrata from the Tertiary of Colorado, ob- 

 tained during the summer of 1873. (Tract.) 8vo. Washington, 1873. 



. Eeport upon Vertebrate Eossils discovered in New Mexico, wdth 



descriptions of new Species. (Tract.) 8vo. Washington, 1874. 



. Consciousness in Evolution. (Tract.) 8vo. Philadelphia, 1875. 



. On the supposed Carnivora of the Eocene of the Eocky Moun- 

 tains. (Tract.) 8vo. Philadelphia, 1875, 



. Synopsis of the Yertebrata of the Miocene of Cumberland County, 



New Jersey. (Tract.) 8vo. Philadelphia, 1875. 



. Systematic Catalogue of Yertebrata of the Eocene of New Mexico, 



collected in 1874. (Tract.) 8vo. Washington, 1875. 



. The Eelation of Man to the Tertiary Mammalia. (Tract.) 



8vo. Philadelphia, 1875. 



. Description of some Yertebrate Eemains from the Eort Union 



Beds of Montana. (Tract.) 8vo. Philadelphia, 1876. 



. On some Extinct Eeptiles and Batrachia from the Judith Eiver 



and Eox Hills beds of Montana. (Tract.) 8vo. Philadelphia, 1876. 



. On the Geologic Age of the Yertebrate Eauna of the Eocene of 



New Mexico. (Tract.) 8vo. Philadelphia, 1876. 



. (Palseontological Bulletin, IN'o. 21.) On the Geologic Age of the 



Yertebrate Eauna of the Eocene of New Mexico. (Tract.) 



8vo. Philadelphia, 1876. 



. ( , No. 22.) Description of some Yertebrate remains from 



the Eort Union beds of Montana. (Tract.) 8vo. Philadelphia, 187 Q. 



. ( , No. 23.) On some Extinct Eeptiles and Batrachia from 



the Judith Eiver and Eox Hills beds of Montana. (Tract.) 



8vo. Philadelphia, 1876. 



. The Extinct Yertebrata of North Carolina. — Synopsis of the 



Yertebrata whose remains have been preserved in the Formations of 

 North Carolina. (Tract.) 8vo. Raleigh, 1876. 



. A Continuation of Eesearches among the Batrachia of the Coal- 

 measures of Ohio. (Tract.) 8vo. Philadelphia, 1877. 



. On a Carnivorous Dinosaurian from the Dakota beds of Colorado. 



A Contribution to the knowledge of the Ichthyological Eauna of the 

 Green Eiver Shales. — On the Genus Erisichthe. (Tract.) 



8vo. Washington, 1877« 

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