published respecting Antrim, Deny, ^c. 355 



Yds. 



Brought forward 1 iO 



Slate 



Yellow Freestone ... 10 



White Limestone ... 1 



Coal 



White Freestone .... 3 



Blue Bind 1 



Sandstone Bind .... 1 

 Main Coal, covered 



by the Sea 6 



Yards.. 143 



1^ 

 o 



tolerable exactness, so far 

 as may be judged by look- 

 ing at the face of the pre- 

 cipice. It is difficult to 

 observe, with accuracy, the 

 lower strata, because of the 

 rubbish, covered with an 

 imperfect vegetation, to- 

 ward the base of the cliflT. 



Jrayish Liiriestone, abound- 

 ing in marineShells, occurs 

 hereabouts. 



This is not known to the pre- 

 sent workmen." 



Oi 



In the above account by Evans, it will be observed, that 

 Slate means Shale, Freestone- means Grit-stone^ in the lan- 

 guage of the Derbyshire Colliers, and that the Notes in the 

 last column seem by some one else, whether Dr. H. or 

 Mr. D. docs not appear. 



Mr. Whitchurst gives no measures to the 14 strata which 

 he enumerates (page 560) ; and the order and denomina- 

 tions so materially differ from the above, that further and 

 more precise observations seem much wanting, in the lower 

 part of the series particularly. Mr. W. if his scale has 

 any proportionality in it, shows the Limestone to be about 

 eight feet thick, and calls it "brown, containing no marine 

 shells:" his lowest stratum (under a considerable space of 

 unascertained strata) wholly below high water, he calls 

 " Millstone Grit, containing quartz pebbles, perfectly si- 

 milar to stratum. No. 1, iu the Derbyshire Section;" my 

 1st Grit Rock, and if so, is a very coarse Grit or Sandstone. 



Several whynn-dykes intersect this Coal-field, five of 

 which Dr. R. has described in your 35th vol.«j), 372, 

 Sec. These dykes, all here have the nature of faults, in 

 depressing the strata, on the west side (Dr. R. vol. xxxv. 

 J). 374) ; at Whaley's Folly one of them separates bitu- 

 minous or blazing Coal, from blind or non-inflammable 



. Coal, 



