404 Scientific Proceedings, Royal Dublin Society. 



such good quality, that it has been found more profitable to carry 

 them unsquared to Cloonisle for shipment than to square them in 

 the quarry. 



At the time the Messrs. Sibthorpe began working, about the 

 year 1870, there was a considerable demand for " Connemara 

 greens"; but unfortunately for the reputation of the stone, as 

 also for many other marbles, architects would insist on using them 

 in outside decorations, and, consequently, not through any real 

 inferiority in the stones, they soon weathered and became un- 

 sightly. Thus was generated a most undeserved prejudice against 

 the green marbles, whioh, when used in their proper sphere as 

 inside work, cannot be surpassed in beauty or elegance. 



The largest column yet obtained (9 ft. 9 in.) was wrought 

 out of a block raised in Lissoughter. It is now at St. Anne's, 

 Co. Dublin, the mansion of Lord Ardilaun. In England this 

 marble was used at the Manchester Exchange, Rochdale Town 

 Hall, St. Mary, and other places in Bradford ; St. John's College, 

 Cambridge ; St. Mary Abbot's, Kensington ; St. Pancras Hotel 

 and Station, &c. Recently it is being exported to America, there 

 being a greater demand for the uniform and clouded dark-greens 

 than for any of the others. From either the Lissoughter or Bar- 

 naoran quarries was procured the serpentine, by the Martins of 

 Ballynahinch, that was wrought into the chimney-piece presented 

 to George IY., and now in the Carlton Club, London. 



METHYLOTIC EXOTIC EOCKS. 



(Ophyte, Eklogyte, Steatyte, and Pyrophyllyte.) 



DARK-GREENS, and VARIEGATED. 



The ophytes, as a general rule, may be classed as "dark- 

 greens," although some are of light colours, or spotted, mottled, 

 and streaked. None of them appear to answer fully Dana's defini- 

 tion of " Precious Serpentine," as they seem in general to occupy 

 a position between that grade and his " Common Serpentine." 

 None of them are in the market, although they are equal to, and 

 perhaps even surpass, some of the foreign stones. 



