FIFTH REPORT OF THE DIRECTOR I908 



187 



taken by another nearer the margin." This seems to indicate that 

 the breaking- down of the flanks has taken place in steps as in the 



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Fig. 



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Inlier of Precambric rocks 

 Trenton limestone; 



J 1_ 



in Beekmantown limestone 



Utica shale. Scale 



typical horsts of Europe. In one of the northern faults the fault 

 plane has been observed [p. 775 J, and it was found to dip steeply 

 to the southeast making: it a reversed fault, or overthrust. 



vf 



Fig. 28 Section through inlier at Little Falls (after Cushing) 



As the section through a part of the Highlands by Professor 

 Berkey shows, the great fault on the other (southern) side hades in 

 the same direction. This large fault block is hence bounded by 



