CONTENTS V 



Page 

 Data on tlie geographic nomenclature of the southern Cali- 

 fornia and Texas regions [abstract] ; by Robert T. Hill. . 67 



Sectional meeting of Friday afternoon for Group B : . . . 67 



Titles and abstracts of papers of Group B and discussions thereon 67 

 Successful method of teaching historical geology [abstract] ; 



by George H. Chad wick 67 



Ordovician overlap in the Piedmont of southern Pennsylva- 

 nia and Maryland : by George W. Stose and Anna I, Jonas 67 

 Chemung stratigraphy in v^^estern New York [abstract] ; by 



George H. Chadwick 68 



Correlation of the Pottsville and Lower Allegheny formations 

 in western Pennsylvania [abstract and discussion] ; by B. 



Coleman Renick 68 



Structural study of a part of northeast Texas, with some 

 stratigraphic sections [abstract] ; by F. Julius Fohs and 



Heath M. Robinson 70 



The lance problem [abstract] ; by Freeman Ward 71 



Observations on coal swamps in northern West Virginia 

 where Permian conditions prevail [abstract] ; by John L, 



TiLTON 72 



Further contributions to the knowledge of the Cretaceous of 



Texas and northern Mexico [abstract] ; by Robert T. Hill 72 

 Paleozoic rocks found in deep wells in Wisconsin and north- 

 ern Illinois [abstract] ; by F. T. Thwaites 73 



Merging of the Carlile shale and Timpas limestone forma- 

 tions in southeastern Colorado ; bj^ H. B. Patton 74 



Present status of the geodetic work in the United States and 



its value to geology [abstract] ; by William Bowie 74 



Reconnaissance traverse from Mojave Ulojane, California, to 



Rock Creek, Utah [abstract]; by Herbert E. Gregory.... 74 

 Topography and geology of the Okanogan Highlands and Co- 

 lumbia Plateau of Washington [abstract] ; by Solon Shedd 75 

 Tertiary stratigraphy in the lower Rio Grande region [ab- 

 stract] ; by Arthur C. Trowbridge 75 



Annual dinner 75 



Greetings to foreign societies 76 



Resolutions of appreciation to E, O. Hovey, retiring Secretary... 76 



Reply by Edmund Otis Hovey 77 



Session of Saturday morning, December 30 80 



Titles and abstracts of papers and discussions thereon, presented 



before the morning session 80 



Geological reconnaissance in Mongolia [abstract and discus- 

 sion] ; by Charles P. Berkey 80 



Problem of mild geological climates [abstract] ; by Ells- 

 worth Huntington 81 



Further experiments on the fracturing of hollow brittle 

 spheres and their bearing on major diastrophism [abstract 

 and discussion] ; by Walter H. Bucher 81 



