Kinahan — On Irish Marbles and Limestones. 419 



Crauford. Four miles northward of Milford, on Mulroy Bay. 

 — Light to dark bluish-grey ; compact to shattery ; crystalline ; 

 in part schistose ; makes excellent lime. 



Kindrumlough. A little west of Kindrum Lodge, in Fanad- 

 within-the- Waters. — White to creamy white ; coarsely crystalline 

 to compact ; shattery, but seems to be suited for tool-work. As 

 yet untried. Surface-pieces polished well, but were shattery and 

 facial. 



Tamney. West of Croaghan House. — A dolomyte of a Sienna 

 character. Untried, but appears too gritty and irregular to be of 

 much value. 



Kintale. — A mile and a-half northward of Rathmullen, on 

 Lough Swilly. Bluish-grey, in part earthy and in part micaceous. 

 Works easily ; can be raised in large blocks. One black bed has 

 been locally used as a marble. 



Mill Mead. Four miles from Carndonald. — Dark blue to grey ; 

 finely crystalline. This stone has its peculiarities ; because when 

 first raised, it is soft and crumbly, but afterwards it hardens into a 

 good stone. 



Various other detached masses occur also in different places in 

 the hills, but it is unnecessary to enumerate them. 



Grood or fair stone in [the Carboniferous is recorded as fol- 

 lows : — 



Bally shannon. — Brownish-grey to dark greyish-blue ; earthy; 

 compact ; semi-crystalline ; works freely. 



Donegal. — Greyish-black ; very earthy, the calcareous matter 

 being very small. Not much used. 



The Carboniferous limestones near Donegal and Ballyshannon 

 burn into a good lime. The older limestones Ordovician and Cam- 

 brian, are very generally used, the lime being nearly invariably dark- 

 coloured, but strong. Some of the white varieties, however, give a 

 white lime. A peculiarity of some of these limestones is, that when 

 they are used as road-metal, the road becomes plastic in continuous 

 wet weather, becoming again quite hard when it is warm and dry. 



Down. 



This is one of the Irish counties in which there is scarcely any 

 Carboniferous limestone. It occurs only in a small tract at Castle 

 Espie, two miles south-east of Comber, and in the extreme south 



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