202 Gr 5 . REPORT OF PROGRESS. I. C. WHITE. 



pebbly ; these may possibly represent the Cherry Ridge 

 group, the calcareous member having disappeared when the 

 deposits became very coarse to the south. 



Where the Pennsylvania Coal Co.'s heavy track passes 

 across the Middle Branch of Lackawaxen, 4 miles from 

 Hawley, the stream makes a vertical plunge of 20' over one 

 of the Catskill massive sandstones, which exhibits at this 

 locality a very curious structure, in that the bedding plane 

 of the sandstone appears to conform to the shape of the 

 falls, curving over its top and down the sides like a sheet 

 of water passing over the same ; it seems to be the result of' 

 false bedding combined with a kind of concretionary struc- 

 ture in the rock. 



Barometric elevations in Paupack. 



A. T. 



Cross roads near Wm. Bray's 1450' 



Forks near R. R. Purdy's, 1405' 



" H. H. Cole's, 1450' 



Level of stream near W. Ansley's, 1350' 



Forks south of S. Kimble's, 1400' 



lt£. Salem, in Wayne county. 



This lies directly west from Paupack, and has the West 

 Branch of Wallenpaupack creek for its southern boundary, 

 while its western is Lackawanna county. 



The rocks of the township belong entirely to the Catskill 

 series. 



Near M. Holland's in its southwestern corner a massive 

 pebbly sandstone is seen at 1400' A. T. and its upper sur- 

 face is grooved by Glacial scratches ; S. 12° W. magnetic. 



Descending from this to Ledgedale the following succes- 

 sion appears : (Fig. 58.) 



Ledgedale section. 



1. Sandstone, massive, pebbly, (top 1400' A. T.,) 20' 



2. Concealed, 25' 



3. Sandstone, 15' 



4. Concealed, 100' 



5. Sandstone, gray, pebbly, 25' 



6. Concealed, with some outcrops of massive sandstone, 110' 



7. Sandstone, dark gray, pebbly to level of Paupack, .... 25' 



420' 



