GEOLOGY OF ARRAN. 



lorsa, is seen to part into two streamlets, half the water 

 running towards Catacol, and half towards lorsa. A shallow 

 pool or small lake sometimes occupies this hollow, and there 

 is then a double outflow, as in the case of Loch-an-Davie.* 



The bleak uplands between Ben-Ghnuis aDd Ben-Bhar- 

 raiu are finely varied by several heights, of which the most 

 remarkable is the prominent ridge of Sail-Chalmadale (sa-Il), 

 an outlier of the latter range. It divides Glen lorsa from Glen 

 Scaftigill, and is a conspicuous and picturesque object from all 

 the south-western portions of the island. To complete our 

 sketch of the northern section, it is only necessary to notice 

 the high ridge between the sea on the north, and north Glen 

 Sannox .and Glen Chalmadale on the south. In geological 

 formation it differs from the others, but is connected with 

 the main range, which we have called the Cior-Mhor group, 

 by means of a ridge at the watershed between the two glens 

 which bound it. This ridge joins on to the eastern flanks of 

 Torneadaneoin (Ne-ad-an-o-in), an abrupt, massive, but 

 not lofty mountain, overlooking Loch Ranza on the south, 

 and forming the termination of a long but not generally high 

 ridge which sweeps round the east side of Glen Eas-an- 

 Bhiorach, and runs in upon the north side of Caistael-Abhael 

 (ca-Ts-tel-avel), near the watershed at Loch-an-Davie. This 

 northern range terminates in bold heights forming the east 

 side of Loch Ranza; its western boundary is formed by the 

 nearly precipitous sides of Meall-Mhor (me-al), the most 

 northerly mountain of the Ben-Bharrain group. Thus, at 

 the northern apex of the island, the principal ranges closely 

 approach one another, their terminal portions forming the 

 lofty abrupt framework to the secluded inlet of Loch Ranza, 



* A ditch at the summit level of the String road, between Brodick 

 and Shiskin, has a like outflow to both seas. The same structure is 

 seen on the road* leading from Dingwall towards Skye ; nearly two 

 miles west of Auch-na-Sheen a spring gushes out from the middle of 

 the road, and running into the adjoining ditch parts off both ways, 

 half to the Atlantic, and half to the German Ocean. 



