17'.' 



HEXDERPLRG DIVISION. 



the individual Btrata are indistinct, lmt the stratification is sufficiently manifest when 

 viewed a^ a whole, and as it appears in a cliff. Fig. 29, at the head of iliis section, re- 

 presents tlic usual appearances ef the rock, where its horizontal strata arc exposed. It is 



a view of the rock at New-Scotland, as it appears in the creek a few rods below the mill. 

 In some localities this rock is recognized with difficulty : thus, at Leeds in Greene 

 county, in the disturbed belt, it is unlike the same mass ai New-Scotland or at Cherry- 

 valley. At the former place it puts on a columnar appearance, especially in the gorge 

 below the village; ami as the peculiar fossil is not readily distinguished, the geologist will 

 inquire with some concern what the rock is, or what it is like ? He will at first suspect that 

 he has fallen upon a disturbed mass belonging to the Hudson-river series ; ami he will not 

 he able to satisfy himself that it is really the Cauda-galli grit, until he finds it succeeded 

 below by the Oriskany sandstone and Delthyris shaly limestone, and above by the Scho- 

 harie layers and a poor variety of the Onondaga limestone. The columnar structure is 

 well represented in the mass by tig. 30, which represents the strata in the gorge at Leeds, 



Fig- SO. 



where ii' • • k cuts through this rock, and exposes it upon its southwest side in 



a bold clifl i high. It is difficult to account for this singular instance of 



