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PROCEEDINGS OF BALTIMORE MEETING. 



and that then the rise of the region, including the outlet at Horseheads, may have 

 thrown the overflow back upon the Chicago outlet. 



The two papers were discussed by several Fellows : 



Mr Gilbert spoke in confirmation of the matter of the first paper. From personal 

 observation he could affirm that south of several cols described in the paper there 

 were abandoned stream channels showing their peculiar and unmistakable char- 

 acters. He commended the name given in the second paper as a richly deserved 

 tribute to the great services of Professor Newberry in glacial geology, but had some 

 doubt concerning the character and capacity of the Horseheads channel. 



Mr McGee referred to the importance of I)r Newberry's work and influence in 

 the early study of glaciology in America, and thought the choice of the name both 

 timely and felicitous. 



Mr Upham suggested that the " Newberry " level might con-elate with Dr Spen- 

 cer's Lundy beach; the differential of uplift, measuring from the Iroquois level, 

 seemed to nearly correspond. 



Mr Spencer said that his objections to the glacial dams had been referred to in 

 his remarks upon the paper of Professor Hitchcock. In the locality of Professor 

 Fairchild's work he had observed terraces 300 feet above the Horseheads plain 

 which could not have been held in by a glacial dam unless such were upon the 

 southern side of the drainage. So also on the southern side of the Adirondacks 

 there were terraces to at least 600 feet above the depression in the country to the 

 south. Until these can be explained by glacial dams there is no reason for invok- 

 ing the same for the terraces facing the north ; also the deltas below the divide 

 represent waters draining to the north, yet between the different valleys they have 

 not been connected, and if their drainage was back into the ice, then it would be 

 necessary to find some kind of ice which would not be melted by water draining 

 through it and lowering the later levels. 



With regard to the successor of Warren water being named Newberry, Mr 

 Spencer had only the objection to urge that it had been already named for the 

 Erie-Ontario valley, the Lundy lake, and for the Huron valley, the Algonquin lake 

 or water, and that for hundreds of miles these deserted lakes had been surveyed. 

 Pie referred to one other fact, namely, that the Forest beach or the last stage of 

 Warren water had never emptied by way of Chicago, but there was no reason why 

 the water-line might not have extended to the head of Seneca valley, as suggested 

 by Professor Fairchild. However, near Batavia, where Dr Spencer had examined 

 some gravel deposits which he had supposed might represent the Forest beach, he 

 found the material of such a character that he could not correlate it with the typical 

 beach. He was very glad that these beaches had enlisted the interest of Professor 

 Fairchild, whose work will be a valuable addition to this most interesting study of 

 dynamic geology ; but while differences of theory give enthusiasm to the investiga- 

 tion and elicit new facts, in the end they will settle the disputed questions, and 

 then there will be little interest in the completed work beyond the catalogue of dry 

 data. 



Professor W. B. Clark announced that the Fellows were invited by the 

 Local Committee to a luncheon in the University gymnasium, and the 

 Society adjourned for the midday recess. 



