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Geology and Mineralogy. 229 
of it in New Jersey, Lewis, in Pennsylvania, and Wright, in Ohio 
an : 
Louis, reaches its southernmost point, on the parallel of 38°, along 
the Osage River, and then runs northwestward and northward, 
made out by him to correspond to a Green Bay an Michigan 
Lake glacier; and also of other morainic loops, such as the Grand 
_ Traverse, the Saginaw, the Maumee or Western Erie, the Scioto 
and rs. 
Professor Chamberlin has extended his careful observations 
eastward over New York and the marginal regions of the glacier 
farther east. He describes loops in western New York; and east 
of , 2 Mohawk Valley moraine (making the movement of 
f been westward, while east of 
n 
the south-by-west and south-southwest movement in the 
by the forms of the underlying land. 
The map of the courses of glacial movements 1n the Hudson 
1ce moved from 
summit in southwestern Massachusetts, where the ice (since the 
. ed) 
that the height of the ice at Albany, forty miles north-northwest, 
was greater than this—probably 3,500 feet. But, as the striz north 
