SESSION OF THE CORDILLEKAN SECTION 563 



Session of the Cordilleran Section, Tuesday, December 30. 



The fourth annual meeting of the Cordilleran Section was called to 

 order at 10.30 a m, December 30, 1902, in the council-room of the Cali- 

 fornia x\cademy of Sciences, San Francisco. 



In the absence of the Chairman of the Section, Dr H. W. Fairbanks 

 was elected temporary chairman. 



The minutes of the last meeting were read and approved. 



The Committee on Membership reported that it had compiled a list 

 of Fellows residing in North America west of the 104th meridian. 



An election of officers for the ensuing year was held, resulting in the 

 election of Dr H. W. Fairbanks as Chairman of the Section, A. C. Lawson, 

 Secretary, and W. C. Knight, Councilor. 



These three officers are to serve as an Executive Committee for the 

 year. 



The Secretary was authorized to send a telegram of greeting to the 

 Society, then in session at Washington, D. C. 



The following papers were then read and discussed : 



SYNTHESIS OF CHALCOCITE AND ITS GENESIS AT BUTTE, MONTANA 

 BY HORACE V. WINCHELL 



The paper is printed in this volume, pages 269-276. 



GEOLOGICAL RECONNAISSANCE OF THE REGION OF THE UPPER MAIN WALKER 



RIVER, NEVADA 



BY D. T. SMITH * 



An abstract of the paper is printed in the Journal of Geology, volume 

 xi, page 94. 



The Section adjourned to meet at South Hall, Berkeley, at 2 o'clock 

 }) m. 



At 2 o'clock the Section was called to order, the Chairman, H. W. 

 Fairbanks, in the chair. 



* Presented hv Andrew C. Lawson. 



