188 PROCEEDINGS OF THE CORDILLERAK SECTION 



the Advancement of Science, April 6 and 7, 1917. The first session, 

 April 6, was called to order at 10 a. m. by Chairman C. F. Tolman, Jr. 

 After announcement in regard to the annual dinner, to be held at Stan- 

 ford Union at 6 p. m., and the business meeting for 1.45 p. m., the fol- 

 lowing papers were read : 



STRUCTURE OF THE LITHOSPHERE 

 BY BAILEY WILLIS 



Presented extemporaneously. 



Discussion 



Dr. A. C Lawson expressed appreciation and asked for experimental data 

 of a positive kind as to movement on plains of schistosity, calling attention to 

 the fact that schistose rocks sometimes break as easily across as with lines of 

 schistosity. 



Dr. Willis explained, illustrating by use of sheared wood blocks, showing 

 movement with and not across grain of wood. 



Dr. C. F. ToLMAN cited studies of schistose structure in region of Tucson, 

 Arizona, illustrating gneissic structure in granite at contact between older and 

 younger masses. 



GEOLOGY AND STRUCTURE OF THE SAN BERNARDINO MOUNTAINS 

 BY F. E. VAUGHAN 



Presented extemporaneously. 



Discussed by Bailey Willis, who compared structure of San Bernardino 

 Mountains to that encountered in China. 



At 12.15 p. m. the session adjourned for luncheon, to resume in busi- 

 ness session at 1.45 p. m., 44 members and visitors being present. 



ELECTION OF OFFICERS 



The business meeting was called to order by Chairman C. F. Tolman, 

 Jr., at 1.50 p. m. Election of officers of the section for the ensuing year 

 was announced as first object. Messrs. Bailey Willis, A. C. Lawson, and 

 J. A. Taff were appointed as a committee to canvass the ballot. The 

 result was declared by the chair as follows : 



President, Henry Landes. 

 Secretary, Charles E. W^eaver. 

 Councilor, Warren D. Smith. 



APPOINTMENT OF COLOR SCHEME COMMITTEE 



Dr. Bailey Willis presented the problem of a color scheme for use in 

 the preparation of geologic maps in Pacific region publications. He 



