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WILLIAM J. MILLER 



significance. A glance at the accompanying sketch map (Fig. i) 

 will emphasize the fact that various large areas show strikes dis- 

 tinctly out of harmony with a northeast-southwest structure. 

 The unpublished Lake Placid geologic map shows exceedingly 

 variable strikes. Many variations also occur within most of the 

 other quadrangles, more especially the North Creek, Long Lake, 

 and Blue Mountain (unpublished). Within the Lake Pleasant 

 quadrangle, the foliation strikes relatively uniformly northwest- 



FiG. i. — Sketch map of the Adirondack region showing generalized strikes of 

 foliation within those quadrangles which have been mapped in detail. 



southeast or just at right angles to the assumed force of compres- 

 sion of the region. Papers by Professor Kemp and assistants in 

 the thirteenth, fifteenth, seventeenth, eighteenth, and nineteenth 

 annual reports of the New York state geologist contain many very 

 variable strike observations in the eastern Adirondacks aside from 

 the quadrangles of the accompanying sketch map. It thus seems 

 clear that the Adirondack rocks show strikes which could not pos- 

 sibly have been produced by a severe lateral pressure exerted across 



