138 PROCEEDINGS OF THE CORDILLERAN SECTION 



stones are also under way. A large scale relief map of Oregon is being con- 

 structed, and a treatise covering the scattered geological data concerning 

 Oregon is also in preparation. 



The laboratory equipment in all departments of the State University and 

 of the Oregon Agricultural College have been made available for the use of 

 the Bureau by the authorities of these two institutions. 



Aside from the regular work outlined, a number of special problems have 

 been presented to the Bureau. Assistance has been rendered a large mining 

 ( ompany in working out some of its metallurgical problems. About three 

 months' time was spent by a representative of the Bureau at the plant of this 

 company. Through the Bureau an anthracite coal project, which proved to 

 be based on a heavy deposit of black volcanic glass and in which several 

 thousand dollars had been invested, was finally cleared up. An investigation 

 of the possibility of using an acid volcanic tuff in the manufacture of Portland 

 cement at a point in ea.stern Oregon also promises to afford some valuable 

 results. 



Presentetl froiii manuscript. 



Discussion 



Profes.sor Hitchcock explained the State Survey methods in the New Eng- 

 land States, especially in New Hampshire. Doctor Branner discussed the 

 organization of the Geological Survey of Brazil and the plans of the new 

 Oregon Bureau. 



ROLE OF SEDIMENTATION IN DIA8TR0PHI8M AND VULCANI8M 



BY F, M. HANDY 



Read from manuscript^, in absence of author, by H. C. Culver. 



The section adjourned at 2.50 in view of the meeting of the Seismolog-: 

 ical Society, which was to be held at 3. 



The annual dinner, held in conjunction with the Paleontological and 

 Seismological Societies and under the auspices of the Le Conte Geological 

 Club, was held Friday evening, at 7 p. m., at the Faculty Club of the 

 University of Washington. After the dinner the following paper was 

 presented : 



BASIN RANOE FAULTING IN THE NORTHWESTERN PART OF THE GREAT 



BASIN 



BY QEOBGE D. I.OUDERBACK 



(Abstract) 



The major and certain minor ranges from the Sierra Nevada to the Humboldt 

 were discussed and stratigraphic evidence was presented which indicates that 



