iv BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 



Mount Pel§ of Martinique and the Soufriere of Saint Vincent in 

 May and June, 1908 [abstract] ; by Edmund Otis Hovey 632 



Multiple glaciation in New York [abstract] ; by H. L. Faiechild. 632 

 Session of Wednesday, December 30 633 



Glacial waters west and south of the Adirondacks [abstract] ; 

 by H. L. Fairchild 633 



Correlation of the Hudsonian and the Ontarian glacier lobes [ab- 

 stract] ; by H. L. Fairchild 634 



Pleistocene geology of the southwestern slope of the Adirondacks 

 [abstract] ; by William J. Miller 635 



Weathering and erosion as time measures [abstract] ; by Frank 

 Leverett 638 



Glacial phenomena of southeastern Wisconsin [abstract] ; by 

 William C. Allen 638 



Criteria for discrimination of the age of glacial drift sheets as 

 modified by topographic situation and drainage relations [ab- 

 stract] ; by William C. Alden 638 



Lake Ojibwa, last of the great glacial lakes [abstract] ; by A. P. 

 Coleman 639 



Glacial erosion on Kelleys island, Ohio ; by Frank Carney 640 



Chalk formations of northeast Texas [abstract] ; by C H. Gor- 

 don 645 



Results of a recent investigation of the Coastal Plain formations 

 in the area between Massachusetts and North Carolina [ab- 

 stract] ; by William Bullock Clark 646 



Geologic relations of the Cretaceous floras of Virginia and North 

 Carolina [abstract] ; by Edward W. Berry 655 



Report of Committee on Earthquake and Volcanic Observations . . 659 



Use of "ophitic" and related terms in petrography; by A. N. 

 Winchell 661^ 



Chemical composition as a criterion in identifying metamor- 

 phosed sediments [abstract] ; by Edson S. Bastin 667 



Tertiary drainage problems of eastern North America [abstract] ; 

 by Amadeus W. Grabau 668 



Drainage evolution in central New York [abstract] ; by H. L. 

 Fairchild 668 



Nantucket shorelines, IV [abstract] ; by F. P. Gulliver 670 



Iron ores of Maryland [abstract] ; by Joseph T. Singe wald, Jr.. . 671 



Quartz as a geologic thermometer [abstract] ; by Fred E. Wright 



and E. S. Larsen 671 



Session of Thursday, December 31 672 



Occurrence of the Magothy formation on the Atlantic islands 

 [abstract] ; by Arthur Barneveld Btbbins 672 



Erosion intervals in the Tertiary of North Carolina and Virginia ; 

 by Benjamin L. Miller 673 



Character and structural relations of the limestones of the Pied- 

 mont in Maryland and Virginia [abstract] ; by Edward P. 

 Mathews and J. S, Grasty 678 



