Vol. 50.] ADDITIONS TO THE LIBRARY. 237 



Choffat, P. See Portugal. 



ClarJc, W. B. See United States and Williams, G. H. 



Clarke, F. W. See United States. 



Clay pole, E. The Cladodont Sharks of the Cleveland Shale. 8vo. 

 Minneapolis, 1893. 



Collins, J. H. Illustrations of Cornish Fossils. 8vo. Penzance, 

 1894. 



Congres Geologique International. Compte-Rendu de la 5me 

 Session, Washington. 8vo. Washington, 1893. Presented by 

 the Secretary, S. F. Emmons, Esq. 



Conrad, T. A. See Harris, G. D. 



, and W. H. Dall. Republication of [T. A.] Conrad's Fossils of 



the Medial Tertiary of the United States, with Introduction by 

 W. H. Dall. 8vo. Philadelphia, 1893. Purchased. 



Conwentz, H. See Sweden. 



Cooke, G. H. See Maps. New Jersey. 



Cope, E. D. See Texas. 



Cotteau, G. See France. Paleontologie Francaise. 



Crawford, J. J. See California. 



Credner, H. Die geologische Landesuntersuchung des Konigreich.es 

 Sachsen. 8vo. Berlin, 1893. 



Zur Histologic der Faltenzahne palaozoischer Stegocephalen. 



8vo. Leipzig, 1893. 



. Die Stegocephalen und Saurier aus dem Rothliegenden des 



Plauen'schen Grundes bei Dresden. X. Theil. 8vo. Berlin, 1894. 



Crosskey, H. W. See Lewis, H. Carvill. 



Dall, W. H. See Conrad, T. A. 



. See Periodicals. Washington. Smithsonian Institution. 



. See United States. 



Dall, W. R., and J. Stanley-Brown. Cenozoic Geology along the 

 Apalachicola Paver. 8vo. Rochester, N.Y., 1894. 



Dallinger, W. H. See Carpenter, W. B. 



Dames, W. Ueber das Vorkommen von Ichthyopterygiern im 

 Tithon Argentiniens. 8vo. Berlin, 1893. 



. Ueber die Gliederung der Flotzformationen Helgolands. 



8vo. Berlin, 1893. 



Ueber Zeuglodonten aus Aegypten und die Beziehungen der 



Archaeoceten zu den ubrigen Cetaceen. 4to. Jena, 1894. 



