CONTENTS TO VOLUME XXVIII vii 



PAGE 



Preliminary Description of a New Suborder of Phytosaurian 

 Reptiles with a Description of a New Species of Phytosauriis. 



E. C. Case 524 



The Heart Mountain Overthrust, Wyoming. D. F. Hewett . 536 

 Summaries of Pre-Cambrian Literature of North America. 



Edward Steidtmaiin 558 



NUMBER VII 



The Katmai Region, Alaska, and the Great Eruption of 191 2. 



Clarence N. Fenner 569 



On Some Physical Properties of Ice. Motonori Matsuyama . 607 

 A Test of the Feldspar Method for the Determination of the 



Origin of Metamorphic Rocks. Charles Gordon Carlson . 632 

 Summaries of Pre-Cambrian Literature of North America. 



Edward Steidtmann 643 



Reviews 659 



Recent Publications 660 



NUMBER VIII 



DiASTROPHISM AND THE FORMATIVE PROCESSES. XIII. ThE BEAR- 

 INGS OF THE Size and Rate of Infall of Planetesimals on 

 THE Molten or Solid State of the Earth. T. C. Chamberlin . 665 



A Pleistocene Peneplain in the Coastal Plain. Herdman F. 



Cleland ' . . 702 



The Mechanical Interpretation of Joints. I. Walter H. 



Bucher 707 



Geologic Reconnaissance of the Southern Part of the Taos 



Range, New Mexico. John W. Gruner 731 



Summaries of Pre-Cambrian Literature of North America. 



Edward Steidtmann 743 



Recent Publications 752 



Index to Volume XXVIII 755 



