Recent Publications. 



-Abbe, Jr., Cleveland. Earthquake Records from Agana, Island of Guam, 

 1892-1903. [From Terrestrial Magnetism, June, 1904.] 



-Adams, George I. (assisted by A. H. Purdue and E. F. Burchard). Zinc 

 and Eead Deposits of Northern Arkansas (with a section on the Deter- 

 mination and Correlation of Formations by E. O. Ulrich). [Washington, 

 1904.] 



-Ball, Eionel C. Notes on Tin, Copper, and Silver Mining in the Stanthorpe 

 District. [Department of Mines, Geological Survey of Queensland, Publi- 

 cation No. 191, Brisbane, 1904.] 



-Becker, George F. Experiments on Schistosity and Slaty Cleavage. 



-Blake, William P. Superficial Blackening and Discoloration of Rocks, 

 Especially in Desert Regions. [Transactions of the American Institute of 

 Mining Engineers, Lake Superior Meeting, September, 1904.] 



-BuRRiTT, Charles H. The Coal Measures of the Philippines, etc. [W'ar 

 Department, Division of Insular Affairs, August, 1901; Washington.] 



-Cameron, W'alter E. The Heberton Tin Field. [Geological Survey of 

 Queensland, Publication No. 192; Brisbane, 1904.] 



-Chalmers, R. The Geomorphic Origin and Development of the Raised 

 Shore Lines of the St. Lawrence Valley and Great Lakes. [From the Ameri- 

 can Journal of Science, September, 1904.] 



-Coleman, A. P. Iroquois Beach in Ontario. [Bulletin of the Geological 

 Society of America, Vol. XV; Rochester, 1904.] 



-Cornet, J Sur la signification morphologique des collines des Flandres. 

 [Extrait du Bulletin de la Societe Beige de Geologie, etc., Tome XVIII; 

 Bruxelles, 1904.] 



La Meuse aradennaise. \Ihid?[ 



L'orientation des vallees dans le Bassin de I'Escant. [Bruxelles: Vander- 



auwera & C'^, 1904.] 



-Crook, A. R. Molybdenite at Crown Point, Washington. [Bulletin of the 

 Geological Society of America, Vol. XV; Rochester, 1904.] 



-Darton, N. H. Comparison of the Stratigraphy of the Black Hills, Bighorn 

 Mountains, and Rocky Mountain Front Range, \lhid^ 



-Dutton, Major C. E. Earthquakes in the Light of the New Seismology. 

 [New York: Putnam & Sons, 1904.] 



-Farrington, O. C. Observation on the Geology and Geography of Western 

 Mexico, Including an Account of the Cerro Morcado. [Field Columbian 

 Museum, Publication No. 89, Geological Series; Chicago, 1904.] 



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