RECENT PUBLICATIONS 



-Kraus, E. H., and Cook, C. W. Datolite from Westfield, Massachusetts. 



[From the American Journal of Science, Vol. XXII, July, 1906.] 

 -Kraus, E. H., and Scott, I. D. Ueber interessante amerikanische Pyrit- 



krystalle. [Sonderabdruck aus "Zeitschrift fur Krystallographie usw.," 



Band XLIV, Heft 2. Leipzig, 1907.] 

 -Lisboa, Miguel Arrojado. The Occurrence of Facetted Pebbles on the 



Central Plateau of Brazil. [From the American Journal of Science, Vol. 



XXIII, January, 1907.] 

 Occorrencias e Evolufao das Theorias Relativas a Genesis dos Seixos 



Facetados. [Extr. dos Annaes da Escola de Minas de Ouro Preto, N. 8, 

 1906.] 



-Logan, Wm. N. The Clays of Mississippi. [Mississippi Geological Survey, 

 Bulletin No. 2.] 



-Maitland, a. Gibb. Recent Advances in the Knowledge of the Geology of 

 Western Australia. Presidential address delivered to the Geological Section 

 of the Australasian Association for the Advancement of Science. [Adelaide, 

 1907.] 



-Mansfield, George R. The Characteristics of Various Types of Conglomer- 

 ates. [From the Journal of Geology, Vol. XV, No. 6, September-October, 

 1907.] 



-Marr, J. E. An Introduction to Geology. [Cambridge University Press, 



1905-] 

 -Maryland, The Physical Features of Calvart County. [Maryland Geological 



Survey. Baltimore, 1907.] 

 -The Physical Features of St. Mary's County. [Maryland Geological Sur- 



vey. Baltimore, 1907.] 



-Manson, D. The Minerals and Genesis of the Veins and Schlieren Travers- 

 ing the Aegerine-syenite in the Bowral Quarries. [From the Proceedings 

 of the Linnaean Society of N. S. Wales, 1906. Vol. XXXI, Part VI.] 



-Meeker, R. I., and Stewart, J. E. Surface Watisr Supply of Missouri 

 River Drainage, 1906. [U. S. Geological Survey, Water Supply Paper 

 No. 208. Washington, 1907.] 



-Miller, Willet G. The Larder Lake District. The Grenville-Hastings 

 Unconformity and the Probable Identity in Age of the Grenville Limestone 

 with the Keewatin Iron Formation of the Lake Superior Region. [From the 

 i6th Report of the Bureau of Mines, Part I. Toronto, 1907.] 



-New Jersey, Geological Survey of. Annual Report of the State Geologist for 

 the Year 1906. [Trenton, 1907]. 



-Obalski, J. Mining Operations in the Province of Quebec for the Year 

 1906. [Department of Colonization, Mines, and Fisheries. Quebec, 1907.] 



-Ontario, Sixteenth Annual Report of the Bureau of Mines of, 1907. [Toronto, 

 1907.] 



-Purdue, A. H. On the Origin of Limestone Sink-Holes. [From Science, 

 N. S., Vol. XXVI, No. 656, pp. 120-22, July 26, 1907.] 



