RECENT P UBLICA TIONS 1 3 



Hayford, John F. The Geographic Work of the Coast and Geodetic Sur- 

 vey. Reprinted from the Engineering News, December 1, 1898. 



— Hill, Robert T. and T. W. Yaughan. Geology of the Edwards Plateau 



and Rio Grande Plain adjacent to Austin and San Antonio, Tex., with 

 reference to the Occurrence of Underground Waters. Extract from 

 Eighteenth Annual Report of the U. S. Geological Survey, 1896-7. Part 

 II. Washington, 1898. 



— Le Conte, Joseph. The Origin of Transverse Mountain Valleys and 



Some Glacial Phenomena in those of the Sierra Nevada. University 

 Chronicle, Berkeley, Cala., December 1898. 



— Lyman, Benjamin Smith. Copper Traces in Bucks and Montgomery 



Counties. Reprinted from Journal of Franklin Institute, December 1898. 



Marsh, O. C. The Comparative Value of different kinds of Fossils in 

 determining Geological Age. Families of Sauropodous Dinosauria. 

 From the American Journal of Science, Vol. VI, December 1898. 

 The Value of Type Specimens and Importance of their Preservation. 

 The Origin of Mammals. Ibid., November 1898. 



The Jurassic Formation on the Atlantic Coast. Supplement. Ibid., 

 August 1898. 



— Maryland Geological Survey, Vol. II. William B. Clark, State Geologist. 



The Johns Hopkins Press, Baltimore, Md. 



— Penck, Albrecht, Dr. Reisebeobachtungen aus Canada. Wien, 1898. 



Die Tiefen des Hallstatter- und Gmundenersees. Wien, 1898. 



Die Begriindung der Lehrkanzel fiir Geographie und desgeographischen 



Institutes an der Universitat Wien. Ibid. 



Der Illecillewaetgletscher im Selkirkgebirge. Separatabdruck aus der 



Zeitschrift des Deutschen und Oesterreichischen Alpenvereins. Jahr- 



gang, 1898. Band XXIX. 



Physikalische Geologic Separat-Abdruck aus dem neuen Jahrbuch fiir 



Mineralogie, etc., 1898. 

 — Ries, Heinrich. The Kaolins and the Fire Clays of Europe and the 



Coal Working Industry in the United States in 1897. 



Extract from the Nineteenth Annual Report of the U. S. Geological 



Survey, Part VI. Washington, 1898. 

 — Rosenbusch, Von, H. Sitzungsberichte der Koniglich Preussischen Aka- 



demie der Wissenschaften zu Berlin, November 1898. 



Zur Deuting der Glaukophangesteine. 

 — Sardeson, Frederick W. Intraformational Conglomerates in the Galena 



Series. From the American Geologist, Vol. XXII, November 1898. 



