462 PROCEEDINGS OF BALTIMORE MEETING. 



gives methods of observing and recording the extent of glaciers. The paper was 

 presented with the hope of enhsting the help of such members of the Society as may- 

 have the opportunity to make observations on American glaciers. 



The paper will be published in the Journal of Geology. 



The following two papers by the same author were read in succession 

 and discussed together: 



DISCRIMINATION OF GLACIAL ACCUMULATION AND INVASION 

 BY WARREN UPHAM 



This paper is printed as pages 343-352 of this volume. 



CLIMATIC CONDITIONS SHOWN BY NORTH AMERICAN INTERGLACIAL DEPOSITS 



BY WARREN UPHAM 



This paper, which was discussed by J. W. Spencer, H. F. Reid, R. D. 

 Salisbury and T. C. Chamberlin, is published in full in the American 

 Geologist, vol. xv, May, 1895, pages 273-295, with map. 



The next two papers were read together and discussed as one : 



GLACIAL LAKES OF WESTERN NEW YORK 

 BY H. L. FAIRCHILD 



This paper is printed as pages 353-374 of this volume. 



LAKE NEWBERRY THE PROBABLE SUCCESSOR OF LAKE WARREN 

 BY H. L. FAIRCHILD 



[Abstract] 



The widely expanded waters of lake Warren, with its outlet at Chicago to the 

 Mississippi, laved the front of the receding ice-sheet as the latter slowly uncovered 

 western New York. The surface of at least the western part of this area bears 

 many evidences of postglacial flooding up to a height of nearly 900 feet, and beaches 

 of the Warren waters have been traced about lake Erie, the lowest with an altitude 

 at Crittenden and Alden, New York, east of Buffalo, of 860 or 864 feet above tide. 

 When the ice had retreated so far as to uncover the valley of the Mohawk river, a 

 much lower outlet to the Hudson was found by the glacial waters and they fell to 

 the level of lake Iroquois, which has left distinct beaches about the Ontario basin. 

 The shore inscriptions of lake Warren as far eastward as Crittenden, New York, 



