VI 



CONTENTS OF VOLUME XXV 



NUMBER III 



The Problem op the Anorthosites. N. L. Bowen .... 209 



The Middle Paleozoic Stratigraphy of the Central Rocky 



Mountain Region. II. C. W. Tomlinson 244 



A Few Interesting Phenomena on the Eruption of Usu. 



Y. Oinouye 258 



Intrapormational Pebbles in the Richmond Group, at Winches- 

 ter, Ohio. August F. Foerste 289 



Reviews' 307 



NUMBER IV 



Labldosaurus Cope, A Lower Permian Cotylosaur Reptile prom 



Texas. Samuel W. Williston . 309 



Notes on the 1916 Eruption of Mauna Loa. I and II. Harry O. 



Wood 322 



Age and Stratigraphic Relations of the Olentangy Shale of 

 Central Ohio, with Remarks on the Prout Limestone and 

 So-calleD Olentangy Shales op Northern Ohio. Amadeus 

 W. Grabau 337 



The History of Devil's Lake, Wisconsin. Arthur C. Trowbridge . 344 



The Middle Paleozoic Stratigraphy of the Central Rocky 



Mountain Region. III. C. W. Tomlinson 373 



Reviews 395 



NUMBER V 



The Laws of Elastico-Viscous Flow. A. A. Michelson . 



The Phylogeny and Classification of Reptiles. S. W. Williston 



Our Present Knowledge of Isostasy from Geodetic Evidence 



William Bowie 



The Satsop Formation of Oregon and Washington. J Harlen 



Bretz 



The Corrosive Action of Certain Brines in Manitoba. R. C 



Wallace ............. 



Notes on the 1916 Eruption of Mauna Loa. Ill and IV. Harry 



Wood 



A Proposed Dip Protractor. Chester K. Wentworth 

 Petrological Abstracts and Reviews. Albert Johannsen 

 Recent Publications 



405 



411 



422 

 446 



459 



467 

 489 

 492 

 498 



