6 



as on the north shore of Arran, to a quarter of a mile, and even half 

 a mile, as in parts of the Eoseneath and Renfrewshire shores, is every- 

 where sea- worn, and hollowed out into caves ; the terrace is covered 

 with shingle greatly sea-worn ; it is flat and difficult to drain ; 

 the elevation seldom passes 40 feet; usually it is considerably 

 less. Mr. Smith was the first to point out that at the level 

 which the land then had for it is the land that has been raised, and 

 not as Mr. Chambers would explain the appearances, the sea that 

 has subsided it must have stood for a much longer period than that 

 which has elapsed (2,000 years) since the Eoman works in this 

 country were constructed. The great length of the caves, of which 

 Professor James Nichol has given a remarkable instance on Davar 

 island at Campbelton* as well as other cases of wearing, such as the 

 projection of the harder veins in the rocks, the overhanging of the cliffs, 

 &c., clearly prove this. In these caves and on the terrace, sea-shells of 

 species now existing in the adjoining sea, occur abundantly and in 

 many places. An interesting case at Kothesay was published in the 

 Witness, July 1855, by Dr. Hugh Miller. One of the most re- 

 markable as regards elevation which has come under the notice of 

 the writer of these memoranda is the steep terrace at Eoseneath 

 house, a seat of the Duke of Argyll, which is shown in the annexed 

 cut. The heights were kindly furnished by Mr. Lome Campbell of 

 Eoseneath. 



(a) Upper slopes, on which the offices stand i (b) Sea-worn cliff of old red sandstone, called Wallace's lov.pi 

 (c) Terrace of former beach, on which JZoseneath house stands,- (d) Sea level, 



The upper terrace is 79 feet high, the lower north portico of 

 Eoseneath house 42 feet ; shells broken and mixed with sea- weed are 

 found on both terraces, 2 or 3 feet below the surface ; on the upper 

 terrace in hollows 68 feet above high water. The bed in Sauchiehall 

 Street, Glasgow, is probably of this age, though somewhat higher 

 (Art. 3) . At Johnstone, near Paisley, a case is mentioned by Mr. 

 Smith, in which sea-shells, bones of fishes and sea-birds, claws of crabs, 

 and sea-weed were found at about 80 feet elevation, resting on Till beds 

 70 feet thick. The brickfields about Glasgow and Paisley abound in 

 these shells ; in the neighbourhood of Jordanhill the beds are 80 feet 

 above the river, the shells being almost always at a considerable 



* Jour, Geol. Soc., vol. viii., 1852. 



