[ 333 J 



LT, Geological Ohsprvations on the County of Antrim, and 

 others in the North-east Pari of Ireland, in an Attempt 

 to arrange the numerous Facts, stated by Dr. William 

 Richardson to the Royal Irish Academy, and to the 

 Royal Society, and those recently published in the Rev. 

 John Duboubdieu's Statistical Survey of Antrim, by 

 Dr. William H. Drummond, in the Preface and Notes 

 to his Poem " The Giant's Causeway," &c. and to refer 

 each of them to one of four principal Strata ; separating 

 such as belong to the Alluvia: with incidental Facts and 

 Observations respecting otherDistricis, &c. ^c. By Mr. 

 John Farey Senior, Mineral Surveyor. 



[Continued from p. 282.] 



Fourth, — 1 may now I think proceed to mention, that I 

 consider Druniglass, Dnngannon or Tyrone Collieries, at 

 no great distance from the SW corner of Lough Neagh, 

 and near 300 feet I behcve above iis level, with a rapid NE 

 dip, to be iu measures above the great Basaltic Rock, that 

 under-lies Lough Neagh : whether these Coal-measures 

 form a limited patch, or hummock on the western slope of 

 my grand Trouuh ? or, whether thev are the exposed part of 

 n)ore extensive carboniferous strata, covered m general by 

 alluvia or Bog ? I submit to the decision of the able ob- 

 servers, which 1 am so glad to find, that our sister Island 

 can boast: I would however further remark, that 48 feet 

 of " Clay and rubble stones," being found on the Drum- 

 giass Coal-measures, according to Mr. W. p. 246, these 

 alluvial stones, according to Mr. G.'s notes, consisting of 

 rounded Limestone, Granite, and other stones, seem to 

 favour the latter supposition, especially, as Coal-measures 

 are intersected and shown by the Blackwaler Valley, for half 

 a mile above Benbervin Mill, near Cioufecle ; that Coals 

 have been dug at Mavdown i m. E of this, that near Newry 

 on the Keady Road, a substance has been found " much 

 resembling Coal in appearance," though " in a primitive 

 Country," Granite being found at Newry, and there are 

 appearances within half a mile of Baubridge in Down, that 

 induced English and Scotch Colliers to try there for Coals, 

 (Mr. G.'s Notes;) all this I think tends to show, that the 

 Coal-measures S of Lough Neagh are not of such small 

 extent as some have supposed, though much concealed bv 

 Gravel and Bog, and by their upper strata of WhinstonCj 

 Limestone, &c. probably. 



The 



