GLACIAL LAKES TAYLOR. 



307 



slightly toward the north-northeast. The area of horizontality lies 

 southwest of a line passing about 5 miles north of Birmingham, Mich., 

 to Ashtabula, Ohio. This seems to have been a sort of hinge lino 



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for the earlier deforming movements. North of it all the beaches rise 

 gi'adually in a direction about north-northeast, but the earlier ones 

 seem to rise or bend upward sooner than the later ones, as though 



