614 H. L. FAIRCHILD POST-GLACIAL UPLIFT OF NEW ENGLAND 



recognition of possible errors and in spite of them, the agreement of 

 the field measurements with the generalized lines of the upraised surface 

 is very close. Confidence in the general accuracy of the map and in 

 the amount of the land uplift is based on the practical accordance of a 

 multitude of phenomena over the whole area and the correlation with the 

 neighboring territory. 



.-tL-V-^. 



Figurp: 1. — Post-Glacial Uplift of northeastern America 

 The lines indicate, in feet, the amount of land uplift following the melting of the 



Quebec (Labrador) ice-sheet. 



The map indicates, what theory seems to require, the more extended 

 deplo3^ment or farther push of the glacier on the land areas (81, page 

 201), and shows a slight lobation to the southeast, over the islands and 

 Cape Cod. It is possible that the lobation of the ice-sheet over this 

 sector was greater than the map suggests. 



