BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 31, pp. 187-190 March 31, 1920 



PROCEEDINGS OF THE EIGHTEENTH ANNUAL MEETING 

 OF THE COEDILLERAN SECTION, HELD AT STANFORD 

 UNIVERSITY, CALIFORNIA, APRIL 6 AND 7, 1917. 



J. A. Taff, Secretary 



CONTENTS 



Page. 



Session of April 6 187 



Structure of the lithosphere [title and discussion] ; by Bailey Willis. . 188 

 Geology and structure of the San Bernardino Mountain [title and dis- 

 cussion] ; by F. E. Vaughan 188 



Election of ofQcers 188 



Appointment of Color Scheme Committee 188 



Geologic cross-section across the Cascade Mountains and Puget Sound 



basin, Washington [title] ; by Charles E. Weaver 189 



Geology and mineral resources of Inyo County, California [title] ; by 



A. C. Waring 189 



Foothill copper belt of the Sierra Nevada Mountains, California 



[title] ; by C. F. Tolman, Jr 189 



Natural history of minerals [title] ; by Austin F. Rogers 189 



Ladd Manganese mine — Notes on the occurrence of manganese in Cali- 

 fornia [title] ; by G. C. Gester 189 



Session of April 7 190 



Announcements 190 



Breccias of the Mariposa formation in the vicinity of Colfax, Califor- 

 nia [title] ; by E. F. Davis 190 



Radiolarian cherts of the Franciscan Group, California [discussion] ; 



by E. F. Davis 190 



Occurrence of the ore deposits of the Santa Fe District, Mineral 



County, Nevada [title] ; by C. W. Clark 190 



Foothill copper belt of the Sierra Nevada, California [title] ; by C. F. 



Tolman, Jr 190 



Register of the meeting of the Cordilleran Section 190 



Session of April 6 



The eighteenth annual meeting of the Cordilleran Section of the Geo- 

 logical Society of America was held at Stanford University, in conjunc- 

 tion with that of the Pacific Division of the American Association for 



(187) 



