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Paleontologieal Bulletin, No. 37. 



ON A 



Hew Basin of White Riyer Age 



IN DAKOTA. 



Read before the American Philosophical Society, Sept. 21st, 1883. 



ON THE 



DISTRIBUTION OF THE LDUP FORK F 



IN NEW MEXICO. 



A SECOND ADDITION 



To the Knowledge of the Fauna of 

 ■ - ■ the Puerco Epoch. 



ON THE 



Trituberculate Type of Molar Tooth io the Mammalia, 



Read before the American Philosophical Society Dec. 7th, 1883.. 



By PROF. E. D. COPE. 



FOR SALE BY A. E. FOOTE, 1223 Belmont Ave., 



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