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127. On Bathmodon, an Extinct Genus of Ungulates. Proc. Amer. 
Philos. Soc. Vol. XII. 
128. On the Dentition of Metalophodon. Proc. Amer. Philos. Soc. 
Vol. XII. 
129. On the Existence of Dinosauria in the Transition Beds of 
Wyoming. Proc, Amer. Philos. Soc. Vol. XII. 
130. On the Familica of Fishes of the Cretaceous Formations of 
Kansas. Proc. Amer. Philos. Soc. Vol. XII. 
131. On the Geoloy of the Wyoming Age of the Coal Series of Bitter 
Creek. Pal. Bull. No. X. 
132. On the Tertiary Coal and Fossils of Osino, Nevada. Proc, 
Amer. Philos. Soc. Vol. XII. 
'^ii- On the Wyandotte Cave and Its Fauna. Amer. Nat. Vol. VI. 
134. On Two New Ornithosaurianr from Kansas. Proc. Amer. 
Philos. Soc. Vol. XII. 
135. Remarks on Mr. Price's "Phases of Modern Philosophy.'' 
Proc. Amer. Philos. Soc. Vol. XII. 
136. Second Account of New Vertebrata from the Bridger Group 
of the Eocene. Pal. Bull. No. II. 
137. Second Notice of Extinct Vertebrates from Bitter Creek, 
Wyoming. Proc. Amer. Philos. Soc. Vol. XII. 
138. Sketch of the Zoology of Pennsylvania. Walling and Gray's 
Topograph. Atlas. 
139- Synopsis' of the Species of the Chelydrinse. Proc. Acad. Nat. 
Sci. 
140. The Geological Age of the Coal of Wyoming. Amer. Nat. 
Vol. VI. 
141. Third Account of New Vertebrata from the Bridger Group 
of the Eocene. Pal. Bull. No. III. Proc. Amer. Philos. Soc. Vol. XII. 
1873- 
142. A Contribution to the Ichthyology of Alaska. Proc. Amer, 
Philos. Soc. Vol. XIII. 
143. On New Perissodactyles from the Bridger Eocene. Pal. Bull. 
No. XI. 
144. On Some Extinct Mammalia Obtained by the Hayden's Geo- 
logical Survey of 1872. Pal. Bull. No. XII. 
• 145. On Some Extinct Types of Horned Perissodactyles. Proc. 
Amer. Assoc. Adv. Sci. Vol. XXII. 
146. On Some New Batrachia and Fishes from the Coal Measures 
of Linton, Ohio. Proc. Acad. Nat. Sci. 
147. On Some New Extinct Mammalia from the Tertiary of the 
Plains. Pal. Bull. No. XIV. 
148. On Some of Professor Marsh's Criticisms. Amer. Nat. Vol. 
VII. 
149. On the Affinities of Loxalophodon Cornutus. Proc. Acad. 
Nat. Sci. 
150. On the flat-clawed Carnivora of the Eocene of Wyoming. 
Proc. Amer. Philos. Soc. Vol. XIII. 
