762 ABSTRACTS OF PAPERS 



of this variation, however, which cannot be eliminated from the measure- 

 ments, the twenty measurements on the Algonquin beach south of the hinge 

 line have a variation of only 7 feet. 



SHORELINES OF THE GLACIAL LAKES IN THE O BERLIN QUADRANGLE, 



OHIO 



BY FRANK CARNEY 



{Abstract) 



The paper described the varying features shown in the shorelines of the 

 Maumee, Whittlesey, and Warren Lake stages, and discussed the factors 

 involved. 



GLACIAL INVESTIGATIONS IN THE LAKE SUPERIOR REGION IN 1909^ 

 BY FRANK LEVERETT 



(Abstract) 



The studies in 1909 were in the district west of Marquette, the district to 

 the east having been covered in previous years. They were extended across 

 northern Michigan and Wisconsin into Minnesota, and embraced the territory 

 directly tributary to Lake Superior from the south and part of the drainage 

 to Lake Michigan and to the Mississippi, but did not reach to the border of 

 the Driftless Area. The moraines as well as shorelines of glacial lakes indi- 

 cate a general northeastward recession of the ice-field. Interlobate moraines 

 were formed on the Keweenaw Peninsula and the Bayfield Peninsula, and 

 there was also a reentrant at the Porcupine Mountains, with slight lobation 

 on either side. The western Superior glacial lake, Lake Duluth, was found to 

 have extended eastward beyond the Keweenaw Peninsula before a lowering to 

 the level of its successor. Lake Algonquin, took place. It reached an altitude 

 more than 700 feet above Lake Superior on the eastern part of the Keweenaw 

 Peninsula, while its altitude at the western end of the Superior basin was 

 only about 465 feet above Lake Superior. Its isobases trend approximately 

 west-northwest to east-southeast, thus harmonizing with those of Lake Nipis- 

 sing, as worked out by Taylor, for the basins of the three upper Great Lakes. 

 A differential uplift of nearly 3 feet per mile is found along a line running 

 from Bruce crossing north-northeast to Calumet. There appears to have been 

 very little uplift during the life of Lake Duluth, its highest shoreline being 

 nearly parallel with the highest shore of Lake Algonquin. The uplift occurred 

 mainly during the life of Lake Algonquin. The shore of Lake Nipissing is 

 submerged westward from the Bayfield Peninsula, and is but 5 to 6 feet above 

 Lake Superior in the vicinity of Bayfield. It reaches 40 feet above the lake on 

 the Keweenaw Peninsula. 



DIVERSION OF THE MONTREAL RIVER 

 BY ROBERT BELL 



(Abstract) 



This paper described a remarkable example of change in the destination of a 

 large river, in which the stream has been diverted in post-Glacial times into 



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