190 proceedings of the cordilleran section 



Session of April 7 



Following the session of the Seismological Society, the Cordilleran 

 Section was called to order at 11.30 a. m. and the following papers read : 



ANNOUNCEMENTS 



Announcements were made in regard to the organization and plans of 

 the Eesearch Committee of the National Defense organization by Dr. 

 J. C. Merriam, chairman, the various affiliated societies of the Pacific 

 Division of the American Association for the Advancement of Science, 

 including the members of the Le Conte Club, to participate. 



BRECCIAS OF THE MARIPOSA FORMATION IN THE VICINITY OF COLFAX, 



CALIFORNIA 



BY E. F. DAVIS 



Bead by title. 



RADIOLARIAN CHERTS OF THE FRANCISCAN GROUP, CALIFORNIA 



BY E. F. DAVIS 



Read from manuscript. 



Discussion by C. F. Tolman, J. A. Taff, and W. S. T. Smith. 



OCCURRENCE OF THE ORE DEPOSITS OF THE SANTA FE DISTRICT, MINERAL 



COUNTY, NEVADA 



BY C. W. CLARK 



At 12.30 p. m. the session adjourned for luncheon. 



An afternoon session was held, beginning at 2 p. m., w^hen further 

 discussion was had on the paper entitled 



FOOTHILL COPPER BELT OF THE SIERRA NEVADA, CALIFORNIA 

 BY C. F. TOLMAN 



At 2.30 the section adjourned sine die. 



EeGISTER OF THE MEETING OF THE CORDILLERAN SECTION 



Branner, J. C. Smith, W, S. T. 



Gill, A. C. Taff, J. A. 



Lav^son, a. C. Tolman, Jr., C. F. 



Louderback, G. D. Turner, H. W. 



Merriam, J. C. Willis, Bailey 



J. A. Taff, 



Secretdfy- 



