IV BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 

 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 



Session of Friday, December 29 709 



Auditing committee's report . 709 



Geology of Ottawa and its environs [abstract] ; by H. M. Ami 710 



Glacial history of Nantucket and cape Cod [abstract] ; by J. H. Wilson. 710 

 Geology and paleontology of northern Canada [abstract] ; by H. M. 



Ami 711 



Gilbert gulf (marine waters in Ontario basin) ; by H. L. Fairchild. . 712 

 Discovery of the Schoharie fauna in Michigan [abstract] ; by A. W. 



Grabau 718 



Calabrian earthquake of September 8, 1905 [abstract] ; by William H. 



Hobbs 720 



Volcanic craters in the southwest ; by Charles R. Keyes 721 



Red beds in the Laramie Mountain region [abstract] ; by N. H. 



Darton 724 



Tertiary terranes in New Mexico [abstract] ; by C R. Keyes 725 



Quarternary history of the upper Mississippi valley [abstract] ; by 



Warren Upham 725 



Distribution of drumlins and its bearing on their origin [abstract] ; by 



Frank B. Taylor 72(5 



Geological map of Connecticut, 1905 [abstract] ; by H. E. Gregory . . . 



Resolution of thanks 727 



Register of the Ottawa meeting, 1905 728 



Session of the Cordilleran Section, Friday, December 29, 1905. 728 



Tehachapi valley [abstract] ; by Andrew C. Lawson 729 



Igneous rocks of the northwestern Black hills [abstract] ; by \Y. S. 



Tangier Smith 729 



Pleistocene phenomena in the Mississippi basin ; a working hypothesis 



[abstract] ; by W. G. Tight 730 



