of Edinburgh, Session 1881-82. 
777 
“ This hill should be thoroughly explored.” * 
Professor Heddle in concluding his notes, states that — “Looking to 
what [ saw on and of the ridge which forms the S. side of Glen 
Nevis; — the patch of matter on the N.E. side of the summit of 
Meall nan Cleireacli ; — the quartzite blocks on the summit of Mullach 
nan Coirean ; — the red felspar syenite in situ to the E. of this; — a 
detrital bank at an altitude of 2904 feet; — and the quartzite and 
gneiss hills to the E., — no doubt remains on my mind of there 
having been a glacier, which, sweeping down Glen Nevis, overtopped 
the hill of 3077 feet, on which, when decreasing in bulk, it may have 
left the quartz blocks ; that when it dwindled somewhat more, it 
carried off blocks of the syenitic granite from somewhere near its 
2904 feet locality ; then, overflowing all the lesser heights to the 
W., crossing the Linnhe Loch, and sweeping into the directly 
opposing Sroin a Chearcaill glen, it was finally stopped by the 
precipice of Stroin Coire Chobarceaill , upon the ridge of which (2300 
to 2500 feet) it left the boulders, as a kind of terminal moraine.” 
“ That while still further dwindling, it laid down the detrital patch 
on the N.E. top of Meall au Cleireacli (1580 to 1626 feet). Lastly 
when its bulk was no longer great enough to pass in a direct westerly 
course over 1600 feet hills, it was deflected by them into the N.W. 
bend of Glen Nevis.” 
He is also of opinion that another great glacier, of nearly equal 
spread but lesser depth, may have been cradled in the gorges which 
lie between the lofty ridge of Aonach Beg and Aonach Mor, and the 
nearly equally lofty quartzite ridge which stretches from Sgor-Choinich 
Beg to Stob Coire Chalaurie ; — and that this glacier may have sent a 
tongue of ice northwards across the scoop of Lochaber. Before com- 
mitting himself, however, to such a view, he would require many 
more days exploration of the district. 
* [Note by Convener. — There is the greater reason for the more thorough 
exploration here suggested, because Craig Dim has been examined by several 
other geologists, — Professor Nicol, Mr Jameson (Ellon), Mr Jolly (Inverness), 
and the Convener. The opinions formed by several of these, were that the 
agent which transported the boulders and glaciated the rocks on the hill 
came not from the eastward but from the westward. Royal Society of 
Edinburgh Trans., vol. xxvii. p. 640.] 
