of Edinhuryli, Session 1883-84. 
913 
6. Notice of Two Localities for Eemarkable Grravel Banks or 
Kaims, and Bonlders, in the West of Scotland, in 
Supplement of the Boulder Committee’s Tenth Eeport. 
By David Milne Home, LL.D. (Plates XI. to XIII.) 
I. Lochaber. 
About eight or ten years ago,, when- in Lochaber,. studying the 
“ Parallel Uoads ” problem, I became acquainted with a district in 
the valley of the Eiver Spean, which presented the phenomena of 
gravel banks or kaims, and boulders, on a larger scale than I had 
ever before or have since met with. 
The lowest of the Parallel Roads^ marked No. IV. on the 
Ordnance Survey Maps, traverses this district; and whilst tracing the 
direction of the “ Road^ as it crosses the hnes of these banks 
and boulders, I was greatly puzzled to account for them, and still 
more for the lines in which they had been deposited. I took 
notes, and made rough sketches of both at the time, hoping that 
I might have an opportunity of a more special investigation. A 
failure of bodily strength supervened,, which deprived me of the 
opportunity ; but as I deem the district well worthy of the atten- 
tion of geologists, on account of the light it seems to throw on 
questions of much interest, I propose to give a short account of the 
facts observed on the occasions referred to, taken from notes and 
sketches made at the time. 
Much assistance can, now be obtained for an examination of the 
district from the Ordnance Survey Maps. At the instance of 
several scientific Societies, Her Majesty’s Government gave autho- 
rity to the late Sir Henry James, then Director-General of the 
Survey, to have special maps made, to indicate the ^'Parallel 
Roads ” in the different Lochaber valleys ; and latterly, at the joint 
request of the Edinburgh Eoyal and Edinburgh Geological 
