600 Scientific Proceedings, Royal Dublin Society. 



Dromore West (parish of Kilmacshalgan) there are quarries of 

 freestone. 



To the west of the county, near Kilmacteige, and in other 

 places farther eastward, margining the Or Mountain range on 

 the southward, there are in places fair-looking stones, but, as 

 previously mentioned, not in request. 



To the north-west of the Ox Mountains, in the neighbourhood 

 of Dunowla, and to the south-west thereof, in the tract and strip 

 of Lower Carboniferous and Calp (?) Sandstones, some of the 

 stones appear as if they might be suited for dressing ; but in no 

 place are they sufficiently opened up to test their qualifications. 

 South-east of Dromore, in Doonbeakin and Ballyglass, flags about 

 4 inches thick and up to 6 feet square have been quarried. 



Coal-measures. — Eeports state that some of the beds of stone in 

 this area are of good quality. They, however, are so inaccessible 

 that they are not properly known. From these hills, however, are 

 procured flags of the same class as the " Arigna flags," which have 

 been largely used throughout the county. 



Sand and Gkavel. — Pit sand is not very plentiful, and varies 

 in sharpness. It can, however, be got good about four miles from 

 Sligo. In some of the rivers and streams there is good river sand 

 and gravel. Sea sand, which can be collected in great quantities 

 along the shore, is an excellent manure for potatoes, but should be 

 spread for some months before the crop is put in, as otherwise its 

 proper effects are not experienced. In places near the shore-line is 

 a stratum of shell sand or gravel, for the most part made up of 

 oyster-shells. This, in some places, is at least 60 feet above the 

 present high- water mark. This deposit is not only itself a valuable 

 manure, but it imparts its fertilizing qualities to the sand above 

 and below it. 



TIPPERARY. 



The sandstones of this county, although now not much heard 

 of, have a history ; as both in ancient and the present times 

 they have been very much used in preference to other kinds, 

 even in places outside the margin of the sandstone areas. At 

 Cashel, the older structures (Cormac's Chapel and the Bound 

 Tower), are of sandstone, except that in the Tower soine of 





