BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 VOL. 17, PP. 671-785, PLS. 80-84 MARCH 30, 1907 



PROCEEDINGS OF THE EIGHTEENTH ANNUAL MEETING, 

 HELD AT OTTAWA, CANADA, DECEMBER 27, 28, AND 29, 

 INCLUDING PROCEEDINGS OF THE SEVENTH ANNUAL 

 MEETING OF THE CORDILLERAN SECTION, HELD AT 

 BERKELEY, CALIFORNIA, DECEMBER 29 AND 30, 1905 



Herman Le Roy Fairchild, Secretary 



CONTENTS 



Page 



Session of Wednesday, December 27 672 



Report of the Council 673 



Secretary's report 673 



Treasurer's report 675 



Editor's report 677 



Librarian's report 679 



Election of officers 679 



Election of Fellows 680 



Amendment to Constitution 681 



Memoir of George H. Eldridge [with bibliography] ; by Whitman Cross. 681 

 Memoir of Albert A. Wright [with bibliography] ; by Frank A. Wilder. 687 



Chemical evolution of the ocean [abstract] ; by Alfred C. Lane 691 



Dike of mica-peridotite from Fayette county, southwestern Pennsyl- 

 vania [abstract] ; by J. F. Kemp 691 



Occurrence of the diamond in North America [abstract] ; by George F. 



Kunz 692 



Nepheline syenite in eastern Ontario [abstract] ; by Frank D. Adams. . 695 

 Geologic reconnaissance map of Alaska [abstract] ; by Alfred H. 



Brooks 695 



Session of Wednesday evening, December 27 700 



Session of Thursday, December 28 700 



Sixteenth annual report of the Committee on Photographs 700 



Resolution concerning International Geological Congress 701 



Drumlin structure and origin [abstract] ; by H. L. Fairchild 702 



Drumlins of Michigan [abstract] ; by Israel C. Russell 707 



The Lefroy, a parasitic glacier [abstract] ; by William H. Sherzer. . .. 707 

 Origin of the massive block moraines in the Canadian Rockies and 



Selkirks [abstract] ; by William H. Sherzer 708 



Glaciation of Manhattan island [abstract] ; by Alexis A. Julien 708 



Session of Thursday evening, December 28 709 



LXI— Bull. Geol. Soc. Am., Vol. 17, 1905 (671) 



