Among articles to appear in early 

 numbers of the Journal of Geology 

 are the following: 



Diastrophism and the Formative Processes. XII. The Physi- 

 cal States of the Planetary Nuclei during their Formative 

 Stages. XIII. The Planetesimals and their Infall. 

 By T. C. Chamberlin. 



The Heart Mountain Overthurst. By D. F. Hewett. 



Notes on the Mechanics of Geologic Structures. By Warren 

 J. Mead. 



Geologic Reconnaissance of the Southern Part of the Taos 

 Range, New Mexico. By John W. Gruner. 



Preliminary Description of a New Suborder of Phytosaurian 

 Reptiles with a Description of a New Species of Phyto- 

 saurus. By E. C. Case. 



Summaries of Pre-Cambrian Literature of North America. 

 By Edward Steidtmann. 



A Test of the Feldspar Method for the Determination of the 

 Origin of Metamorphic Rocks. By C. G. Carlson. 



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



Cleland. 



The Mineralography of the Feldspars. By H. L. Alling. 

 To be published as a supplement to the Journal of 

 Geology. 



