613 
of Edinburgh, Session 1879-80. 
cairns), which lies N.W. of this, was distinctly hummocked at a 
height of about 950 feet above the sea. 
Black Mount district , — having Loch Levin on the north, Moor of 
Eannoch on the east, and the Linnhe Loch on the west. 
1. A train of boulders having been noticed by me on the north 
slopes of the valley of the Beathard , west of Loch Tulla, viz., on the 
low slopes of Stob Ghabhar and Ben Toaig , and also several huge 
blocks upon the shores of Loch Docliard , I felt a desire to seek for 
the parent rocks. 
The boulders on Stob Ghabhar were of a pecular white granite, 
and were in size on an average up to 10 x 10 x 7 feet. 
Ben Toaig and Ben Terrick are hills of gneiss. In the col between 
these hills, at a height of 2530 feet, the same variety of white granite 
boulders were found, with an average size of about a cubic yard, 
much worn. There was glaciation on the rocks (but much effaced), 
from S.W. to N.E. 
Stob Ghabhar is also a gneiss hill. No boulders were seen except 
on its southern slopes, i.e., at the spot already mentioned. 
Ben Starrav was ascended. Its rocks were different from that of 
the boulders, as they consisted of a flesh-coloured granite. 
The hills called Scon Ghearraen and Meal Odhar were next 
examined, forming west spurs from Stob Ghabhar. The rocks on 
them, as well as on Glass Bein Mohr , were found to he granite, but 
not exactly the same as that of the boulders. 
Albannach hill was found, from its first eastern cliff to its summit, 
to consist of granite identical with that of the boulders. Blocks of 
the rock strewed its cross-corries in numbers ; and the whole process 
of boulder formation may he said to be still displayed upon its 
slopes. 
On the east and south-east sides of the hill there seemed to have 
been ice moving towards the south and towards the east. 
On its northern side, similar traces were visible in the great corry 
under the sharp peak, showing a movement first to the north, and 
then a confluence with glaciation from a west corry of Meall 
Targuinn, thereafter curving westward, and sweeping towards Glen 
Etive. 
This great hill, reaching to a height of 3425 feet above the sea, seems 
to have been the cradle of local glaciers, and also the source from 
