275 
of Edinburgh, Session 1880-81. 
The course lay over Ben Dearg (2000 feet), Creag Mhor (3000 
feet), an unnamed hill west of this (3240 feet), Cam Mcdrg (3419 
feet), Malharran Odliar (2230 feet), Gecil Cham (2595 feet), Creag 
Mhor (2250 feet). 
Nothing was discovered on any of these hills till Geal Cham was 
reached. After the top of it was passed, and about 400 yards 
beyond it, at the height of 2498 feet, two boulders were found, 
about 100 yards from each other, and weighing each about 
7 tons. This hill of Geal Cliarn with Creag Mhor to the north, 
forms a continuous ridge running nearly north and south, crossing 
therefore the great central trough, of which the Moor of Rannoch 
forms part, the general level of which moor is not more than from 
900 to 1000 feet above the sea. If, as the explorations of the 
previous year showed, boulders had been dropped by some 
means from the west along Rannoch Moor in the form of a stream, 
none were likely to be found on any of the hills to the south of 
Geal Cham , as these hills were blocked by higher hills to the west, 
such as Meall Garbh (3048 feet) and Meall Bnear (2291 feet). On 
xamining the rock composing these two boulders, Professor Heddle 
was of opinion that it was the same as that of the boulders lying 
near Loch Tulla, and which he had tracked, from one hill to another, 
till a rock in situ the same in composition was found on the high hill 
called Albannach , about 12 miles to the west. The only difference 
which he could detect was, that the rock of the Geal Cham boulders 
was “ somewhat of a coarser grain.” 
Conceiving that this hill of Geal Cham , by lying transversely 
across the trench, had caught some of the boulders, it occurred to 
Professor Heddle, that as the loftier mountain of Schehallion, 
situated about 3 miles to the east, was also in such a position, that 
it may have intercepted some of the Albanach boulders, he ascended 
it on the following day. 
He had not much expectation of finding boulders on it, as it forms 
an elongated range in a nearly east and west direction. However, 
when he was about 140 feet from the summit (that is 3407 feet 
above the sea), he did find at its west end, a boulder of Albannach 
granite, of about three-quarters of a ton in weight. 
Professor Heddle states that he looked about for more granite 
blocks, but did not fall in with any. The sides near the top, 
