594 PROCEEDINGS OF THE PHILADELPHIA MEETING 



CONTRIBUTION TO THE PALEONTOLOGY OF THE MARTINEZ GROUP 

 BY CHAKLES E. WEAVER* 



Published as Bulletin of the Department of Geology, University of 

 California, volume 4, number 5. 



The Section then adjourned for luncheon. 



At 2 p m the Section reassembled to hear the reading of the follow- 

 ing papers : 



GEOLOGY OF THE ROBINSON MINING DISTRICT, NEVADA 

 BY ANDREW C. LAWSON 



ARCAS OF THE CALIFORNIA TERTIARY 

 BY VANCE C. OSMONT* 



Published as Bulletin of the Department of Geology, University of 

 California, volume 4, number 4. 



The following papers were read b}' title : 



STREAM PIRACY IN THE UPPER PECOS, NEW MEXICO 

 BY W. G. TIGHT 



BASAL STRUCTURE OF THE SANDIA MOUNTAINS, NEW MEXICO 

 BY W. G. TIGHT 



LA WSONITE 

 BY A. S. EAKLE 



The Section then adjourned. 



Andrew C. Lawson, 



Secretary. 



Register of the Meeting of the Cordilleran Section 

 The following named Fellows were in attendance at the meeting : 



E. W. HlLGARD. J. C MERRIAM. 



George D. Louderback. A. S. Eakle. 



F. M. Anderson. W. S. T. Smith. 

 R. H. Loughridge. A. C. Lawson. 



The visitors were : 



E. L. Furlong. A. Knopf. 



V. C. Osmont. J. C. Hartzell. 



C. E. Weaver. E. P. Carey. 



* Introduced by John C Merriam. 



