86 PROCEEDINGS OF THE AMHERST MEETING 



TITLES AXD ABSTRACTS OF PAPERS PRESENTED BEFORE THE MORNING 

 SESSION AND DISCUSSIONS THEREON 



There being no further business to transact the regular program was 

 taken up, the first paper being 



GLACIATION OF NEW HAMPSHIRE 

 BY JAMES WALTER GOLDTHWAIT 



(Abstract) 



This paper summarized present knowledge of the Pleistocene history of New 

 Hampshire and drew conclusions regarding (a) the extent and thickness of 

 the last ice-sheet ; ( b ) its course across the State and the relation of this to 

 topography; (c) the dispersion of stones in the drift and the survival of dif- 

 ferent rock types during transportation; (d) the localization of drumlins and 

 other types of drift; (e) the manner and rate of recession of the ice-border, 

 as recorded by glacio-marine, glacio-lacustrine, and glacio-fluvial deposits in 

 the coast district and in the larger valleys of the interior ; (/) the extent 

 and amount of later glacial uplift and of other changes of level subsequent 

 to it ; (g) the questional character of alleged evidences of interglacial epochs 

 and of pre-Wisconsin glaciation in New Hampshire; and (h) the date and 

 extent of local mountain glaciation. Attention was called to certain problems 

 which seem quite capable of settlement, and to others upon which we seem 

 as yet to have no light. 



Presented in abstract from notes, with lantern-slide illustrations. 

 Questions were asked by J. L. Tilton and J. B. Woodworth. 



RECESSION OF THE LAND-ICE IN NEW ENGLAND 

 BY ERNST ANTEVS 1 



(Abstract) 



In 1921 the recession of the land-ice in New England was studied by Gerard 

 De Geer's method 2 of measuring the varve (annually laminated) clays and 

 silts. The fields covered are the Connecticut Valley from New Haven to the 

 Canadian frontier and the Merrimac Valley around Concord, New Hampshire. 



Glacial varve-clays are exclusively deposited in fresh or almost fresh 

 water ; in salt or strongly brackish water more or less homogeneous clays are 

 formed, such as those, for instance, that occur in the coast regions of New 

 Hampshire and Maine. There being beautiful varve-clays at Hackensack, 

 New Jersey, more than 15 feet below sealevel and at New Haven, Connecticut, 

 more than 25 feet below the sea, it is evident that these regions or, as I think, 

 the peripheric zone of (the eastern part of) the glaciated area, quite in Eu- 

 rope, took a higher vertical position, when it was relieved of the ice, than it 



1 Introduced by Edward B. Mathews. 



3 Gerard De Geer : A geochronology of the last 12.000 years. Oompre rendu du XT; 

 e congres yeologhpH 1 international, p. 241. Stockholm, 1012. 



