SCIENT. PROC. R. DUBLIN SOC, K.S.. VOL. XV. 



PLATE LIV. 



Geological Map, illustrating the probable location of concealed Coalfields in the North- 

 East ot Ireland. The black lines show the more or less conjectural limits of the synclinal 

 troughs, at the intersection of which coal-basins are expected to occur. 



Wright: Paleozoic Floor of N. E. Ireland. 



