593 
of Edinburgh , Session 1879 - 80 . 
“ Boulders, carried a hundred miles and more from their native 
localities, are still found in many parts of Berwickshire, though by 
far the greater number, especially of the smaller ones, have been 
broken up for road metal. This is particularly the case along the 
post road between Reston and Ayton, where fragments of gneiss, 
mica slate, pure vein quartz, porphyries, and other rocks of Grampian 
origin, were, a few years ago, to be seen in every depot by the road- 
side. The current which brought the ice upon which these were 
conveyed, must have come from the westward, where these rocks 
occur in situ. Among the more remarkable of these boulders may 
be mentioned a rounded block of gneiss on the road at the top of 
Ecclaw Edge, — a large block of mica slate on the slope of the hill 
east from Burnhouses, — several smaller masses at Windshiel, Kid- 
shielhaugh, and Abbey St Bathans, — and a block of a very peculiar 
diorite, formerly one of the stepping-stones in the River Whitadder 
at Ellenford. This diorite, which is composed of greyish quartz, 
red felspar, and a little chlorite, occurs in situ in the neighbourhood 
of Aberfoyle. Rounded pebbles of the same have been found in 
the Whitadder below Preston Bridge, where also mica slate, quartz, 
sandstone from the Lothians, &c., are to be met with in the river 
shingle.” — ( Wm. Stevenson on Ice Action in Berwickshire , “ Berwick. 
Nat. Club Trans.” vii. p. 209.) 
Buteshire. 
Arran . — Some years ago I spent a few days at Brodick and Corrie, 
and made the following observations : — 
1. In travelling along the high road between Lamlash and Brodick, 
I observed thick beds of boulder-clay containing numerous boulders, 
the most prevalent being granite, and also a conglomerate, with 
large quartz pebbles in it. The height of these clay-beds was about 
387 feet above the sea. Rocks in situ of the same nature are 
situated to the N.N.W. 
To the south of Brodick Bay, there is a large number of Boulders, 
along and near the coast ; but in Brodick Bay itself, there is a total 
absence of boulders, whilst to the north of Brodick Bay they are 
numerous. 
This circumstance suggests a theory which will be mentioned, after 
