3 RECENT PUBLICATIONS 



-Blackwelder, Eliot. On the Probable Glacial Origin of Certain Folded 



Slates in Southern Alaska. [From the Journal of Geology, Vol. XV, No. i, 



January-February, 1907.] 

 -BoDMAN, GosTA. Om Isomorfi Mellan Salter af Vismut och de Sallsynta 



Jordmetallema. [Akademisk Afhandling; Uppsala, 1906.] 

 -BoNNEY, T. G. The Relations of the Chalk and Boulder-Clay near Royston. 



[Quart. Joum. Geol. Soc, Vol. LXII, 1906, pp. 491-98.] 

 The Chalk Blufif at Truningham. [From the Geol. Mag., Decade V, 



Vol. Ill, No. 507, September, 1907.] 

 -BouTWELL, J. M. Stratigraphy and Structure of the Park City Mining District, 



Utah. [From Journal of Geology, Vol. XV, No. 5, July-August, 1907.] 

 -Branner, John C. Geologia Elementar, preparada com referenda especial 



aos Estudantes Brazileiros. [Laemmert & C, Rio de Janeiro e S. Paulo, 



1906.] 

 -Brogger, Dr. W. C. Strandliniens Beliggenhed under Stenalderen. [Norges 



Geologiske Undersogelse, No. 41; Kristiania, 1905.] 

 Die Mineralien der Siidnorwegischen Granit-Pegmatitgange. I. Niobate, 



Tantalate, Titanate, und Titanoniobate. [In commission bei Jacob Dybwad, 



Kristiania, 1906.] 

 -Hellandit von LindvikskoUen bei Karagero, Norwegen. [Sunderabdruck 



aus "Zeitschrift fiir Krystallographie, usw." XLII Band, 5. Heft; Leipzig, 

 1906.] 

 -Bruce, Pirie, Mobsman, and Brown. Some Results of the Scottish National 

 Antarctic Expedition. [From the Scottish Geographical Magazine, August, 



1905-] 

 -Buckley, E. R. Public Roads, Their Improvement and Maintenance. [Mis- 

 souri Bureau of Geology and Mines, Vol. V, 2d Series; Jefferson City, 



1907.] 

 -Bureau of Science, Fifth Annual Report of the Director of the. For the Year 



ending August i, 1906. [Manila, 1906.] 

 -Butts, Charles. Economic Geology of the Kittanning and Rural Valley 



Quadrangles, Pennsylvania. [U. S. Geological Survey, Bulletin No. 279; 



Washington, 1906.] 

 -Campbell, Marius R. Recent Improvements in the Utilization of Coal. 



[From Economic Geology, Vol. II, No. 3, April-May, 1907.] 

 Natural Mounds. [From the Journal of Geology, Vol. XIV, No. 8, 



November-December, 1906.] 

 -Campbell, W. W. Organization and History of the D. O. Mills Expedition 



to the Southern Hemisphere. [Publications of the Lick Observatory, Vol. 



IX, Parts I, 2, and 3; Sacramento, 1907.] 

 -Canada, Summary Report of the Geological Survey Department of, for 1905. 



[Ottawa, 1906.] 

 Section of Mines, Annual Report for 1904. [Sessional Paper No. 26 a, 



Geol. Survey of Canada; Ottawa, 1906.] 



