BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Vol. 2, pp. 607-662 AUGUST 7, 1891 



PROCEEDINGS OF THE THIRD ANNUAL MEETING, HELD 

 AT WASHINGTON DECEMBER 29, 30 AND 31, 1890. 



J. J. Stevenson, Secretary. 



CONTENTS. 



Page. 



Session of Monday, December 29 607 



Report of the Council 608 



Election of OflScers and Fellows 609 



Obituary Notice 610 



Discussion on the Geological Structure of the Selkirk Kange ; by C. D, 



Walcott 611 



Evening Session, Monday, December 29 612 



Illustrations of the Structure of Glacial Sand-Plains ; by W. M. Davis and 



H. L. Rich . 612 



Glaciers of the St. Elias Region, Alaska; by I. C. Russell 612 



Session of Tuesday, December 30 • - 613 



Evening Session, Tuesday, December 30 615 



First Annual Report of the Committee on Photographs 615 



Session of Wednesday, December 31 631 



On the Occurrence of Mcgalonyx jeffersoni in central Ohio (abstract) ; by 



Edward Orton 635 



On the Family Orthidae of the Brachiopoda (abstract); by James Hall 636 



On a jointed Earth Auger for geological Exploration in Soft Deposits (ab- 

 stract) ; by N. H. Darton 638 



On the Occurrence of Diamonds in Wisconsin ; by G. F. Kunz._ 638 



On the Occurrence of Fire Opal in a Basalt in Washington State ; by G. F. 



Kunz 639 



A fallen Forest and Peat Layer beneath aqueous Deposits in Delaware; by 



H. T. Cresson 640 



Register of the Washington Meeting 644 



List of Officers and Fellows of the Geological Society of America , 645 



Index to Volume 2 653 



Session of Monday, December 29. 



The Society met in Columbian University at 2 o'clock p. m., Vice-Presi- 

 dent Alexander Wincliell in the chair. 



When the meeting was called to order, Mr. G. K. Gilbert, chairman of 

 the Local Committee of Arrangements, introduced President J. C. Welling, 



LXXXIX— Bull. Geol. Soc. Am., Vol. 2. 1890. (607) 



