782 GEORGE WAGNER 



Ohio Geological Survey. Professor Marsh was expected to 

 write a report upon them, but none such has ever appeared. If 

 these specimens have been preserved, a careful study of them, 

 with especial reference to individual variations in connection 

 with what has already been published, may be of much interest, 



George Wagner. 



University of Wisconsin. 



BIBLIOGRAPHY. 

 Cope, E. D. 



1893. "A Preliminary Report on the Vertebrate Palaeontology of the Llano 

 Estacado." (From the Fourth Annual Report of the Geological 

 Survey of Texas), pp. 1-136, Plates I-XXIII. 



Cope, E. D. and Wortman, J. L. 



1884. Fourteenth Report, State Geologist of Indiaiia, Part II, pp. 1-62, 

 Plates I-VI. 



DUGES, A. 



1887. La Naturaleza (2), Vol. I, pp. 16-18, Plates I, II. 

 GiDLEY, J. W. 



1903. Bulletin of American Museum of Natural History, Vol. XIX, p. 477. 

 Leconte, J. L. 



1848. A7nerican fournal of Science (2), Vol. V, pp. 102-6. 

 \Z\Za Memoirs of American Academy of Arts and Sciences, Vol. Ill, pp. 

 257-74, Plates I-IV. 

 Leidy, J. 



1853. Transactions of American Philosophical Society (2), Vol. X, pp. 



323-43, Plates XXXV-XXXVIII. 

 1857. /(^z^. (2), Vol. XI, pp. 97-105, Plate VI.. 

 1882. Proceedings of Academy of Natural Sciences, Philadelphia, 1882, 



pp. 301. 

 1889. A7inual Report of Geological Survey of Pennsylvania, 1887, pp. 

 1-20, Plates I, II. • 

 Marsh, O. C. 



1871. American fournal of Science (3), Vol. II, pp. 35-44. 



1894. Aftierican fournal of Scie7ice (3), Vol. XLVIII, p. 273. 

 Newberry, J. S. 



1875. Report of Geological Survey of Ohio, "Palceontology," Part II, 

 WiLLISTON, S. W. 



1894. Kansas University Quarterly, Vol. Ill, pp. 25-39, Plates VII, VIII. 

 1896. University Geological Survey of Kansas, Vol. II. 



