55 GEOLOGY 



55202 Zirkel, F. Lehrbuch der Petrographie. 3 vols. 



Leip. 1893-94. 



55204 Adams, F. D., and Coker, E. G. Investigation into the 

 elastic constants of rocks. Wash. 1906. 



55207 Weinschenk, E. Petrographie methods. 



New York 1912. 



55207 Wright, F. E. Methods of petrographic-microscopic 

 research. Wash. 1911. 



'5521 Chamberlin, R. T. The Gases in rocks. Wash. 1908. 



5521 Daly, R. A. Igneous rocks and their origin. 



New York 1914. 



5521 Marker, A. Natural history of igneous rocks. 



Lond. [1909]. 



5521 Iddings, J. P. Igneous rocks. 2 vols. 



New York 1909-13. 



5521(42) Teall, J. J. H. British petrography with special re- 

 ference to igneous rocks. Lond. 1888. 



5524 Leith, C. K., and Mead, W. J. Metamorphic geology. 



New York 1915. 



5524 Rutley, F. Granites and greenstones. Lond. 1894. 



5524(482) Qoldschmidt, V. M. Die Kontaktmetamorphose im 

 Kristianiagebiet. Kristiania 1911. 



55244 Grubenmann, U. Die Kristallinen Schiefer. 2 vols. 



Berl. 1904-07. 



55246 Watson, J. British and foreign marbles, etc.: a de- 

 scriptive catalogue of specimens in the Sedgwick 

 Museum, Cambridge. Camb. 1916. 



'55 2 5 Cayeux, L. Introduction a 1'etude petrographique des 

 roches sedimentaires. Paris 1916. 



101/5526 British Museum Mineral department. Introduction 

 Fie 2 to the study of meteorites. By L. Fletcher. 



[Lond.] 1908. 



5528 Rosenbusch, H. Mikroskopische Physiographic der 

 massigen Gesteine. Stuttg. 1896. 



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