CONTENTS Vll 



Page 

 Fusion of sedimentary rocks in drill-holes; by N. L. Bowen 



and M. Aurousseau 96 



Xenoliths in tlie Stony Creek, Connecticut, granite [discus- 

 sion] ; by James F. Kemp 96 



New teaching diagram for igneous rocks ; by A. B. Van 



ESBROECK 97 



Aerolite from Rose City, Michigan [abstract] ; by Edmund 



Otis Hovey 97 



Origin and formation of certain Appalachian bauxite de- 

 posits ; by Wilbur A. Nelson 97 



Stormberg lavas of South Africa [abstract and discussion] ; 



by Fred. E. Wright 97 



A high temperature vein in Madison County, Missouri [ab- 

 stract] ; by W. A. Tarr 99 



Cretaceous age and early Eocene uplift of a peneplain in the 

 southern interior of British Columbia and the development 

 of the north Thompson River trench; by W. L. Uglow. ... 99 

 Study of the igneous rocks of Ithaca, New York, and vicinity 



[abstract] ; by J. H. C. Martens 99 



Attempt to study the actual capillary relationships of oil and 



water [abstract] ; by Charles -^W. Cook 100 



Chemical suggestions concerning the origin of Lake Superior 



copper ores [abstract] ; by Roger C. Wells 100 



Solvents and precipitants in the Michigan copper lodes [ab- 

 stract] ; by Alfred C. Lane 100 



Register of the Ann Arbor meeting, 1922 101 



Reference to Constitution and By-Laws 102 



Officers, Correspondents, and Fellows of the Geological Society of 



America 103 



Proceedings of the Twenty-first Annual Meeting of the Cordilleran Section 

 of the Geological Society of America, held at Stanford University, Cali- 

 fornia, April 29, 1922 ; Austin F. Rogers, Secretary 117 



Session of April 29 117 



List of officers for 1922 118 



Program of papers 118 



Miocene age of the oil shales at Elko, Nevada ; by John P. 



BUWALDA 118 



Fauna of the Sooke formation; by B. L. Clark and Ralph 



Arnold. 118 



Boreal marine fauna from the Upper Oligocene or Lower 



Miocene of Alaska ; by B. L. Clark 118 



Myadesma, a new genus of Felecypoda from the marine Oli- 

 gocene of the west coast ; by B, L. Clark 118 



Eocene venericardia of the west coast; by Marcus Hanna.. 118 



Phylogeny of the genus Agasoma; by H. V. Howe 118 



Verde River lake beds near Clarkdale, Arizona ; by O. P. 

 Jenkins 119 



