vi CONTENTS OF VOLUME XVI 



PAGE 



Discoid Crinoidal Roots and Camarocrinus. Frederick W. Sarde- 



son . . . 239 



Studies for Students: Relations Between Climate and Terres- 

 trial Deposits — Continued. Joseph Barrell .... 255 



Editorial. T. C. C. . • • 296 



Reviews .........••• 298 



NUMBER IV 



Features Indicative of Physiographic Conditions Prevailing at 

 the Time of the Trap Extrusions in New Jersey. C. N. 

 Fenner 299 



The Succession of Faunas in the Portage and Chemung Forma- 

 tions of Maryland. Charles K. Swartz . . . . .328 



Ancient Water-Planes and Crustal Deformations. H. H. Robin- 

 son . 347 



Notice of a New Coelacanth Fish from the Iowa Kinderhook. 



Charles R. Eastman . . ■ ■ • • • -357 



Studies for Students: Relations Between Climate and Terres- 

 trial Deposits — Concluded. Joseph Barrell .... ^6;^ 



Reviews ........... 385 



NUMBER V 



"The Oldest Known Reptile" — Isodectus Punctulatus Cope. 



S. W. Williston 395 



The Origin of Augite Andesite and of Related Ultra-Basic Rocks. 



Reginald A. Daly ......... 401 



A Table of Index of Refraction and Birefringence of Rock- 

 making Minerals. W. O. Hotchkiss ...... 421 



Highly Folded Between Non-Folded Strata at Trenton Falls, 



N. Y. W. J. Miller 428 



Geotectonics of the Estancia Plains. Charles R. Keyes . . 434 

 The Physical Origin of Certain Concretions. James H. Gardner 452 

 A Reconstruction of Water Planes of the Extinct Glacial Lakes 



IN THE Lake Michigan Basin. James Walter Goldthwait . . 459 



Reviews ............ 477 



Recent Publications . . . . ... . . 484 



