III. On the Geological Features of the North-eastern 



Counties of Ireland^ 



Extracted from the Notes of J. F. Berger, M.D. M.G.S. 



Read April 15th, 1814. 



With an Introduction and Remarks^ 

 By the Rev. W. Conybeare, Member of the Geological Society. 



Read April 3th, 1816. 



INTRODUCTION. 



T< 



O collect in one point of view the general results deducible 

 from the ensuing detached observations, and enable those who 

 may be unacquainted with Ireland to follow their course with 

 greater facility, it seems desirable to introduce them by a rapid 

 survey of the general features which distinguish the district they 

 refer to. 



That district may be described as limited by Dundalk bay on 

 the S.E. and by Lough Foyle on the N.W. including towards the 

 south the counties of Down, Armagh, and the N.E. angle of Lowth 

 lying between Dundalk and Carlingford bay j and on the north, 

 Antrim and Derry : that portion of Tyrone which extends along 

 the S.W. shore of Lough Neagh, between Derry and Armagh, 

 being also comprehended as falling within the same general outline. 



This district is marked by three distinct systems or groups of 

 ftiountains, one of which occupies the more southern counties; 

 while the more northern are divided between- the two others. 



Vol. III. Q 



