Among articles to appear in early 

 numbers of the Journal of Geology 

 are the following: 



Diastrophism and the Formative Processes. XIII. The Planet- 

 esimals and their Infall. By T. C. Chamber];.in. 



Geologic Reconnaissance of the Southern Part of the Taos Range, 

 New Mexico. By John W. Gruner. 



Summaries of P re-Cambrian Literature of North America. Papers 

 III -VII. By Edward Steidtmann. 



A Pleistocene Peneplain in the Coastal Plain. By H. F. Cleland. 



The Miner alography of the Feldspars. By H. L. Alling. 



To be published as a supplement to the Journal of Geology. 



Features of a Body of Anorthosite-Gabbro in Northern New Yorl^. 

 By William J. Miller. 



A Glacial Gravel Seam in Limestone at Ripon, Wisconsin. By F. 

 T. Thwaites. 



The Physical Chemistry of the Crystallization and Magmatic Differ- 

 entiation of Igneous Rocks. By J. H. L. VoGT. 



A New Form of Diplocaulus. By M. G. Mehl. 



Volcanic Earthquakes. By Charles Davison. 



The Mechanical Interpretation of Joints. By Walter H. Bucher. 



Types of Rocky Mountain Structure in Southeastern Idaho. By 



George Rogers Mansfield. 



