of Edinburgh, Session 1877 - 78 . 
705 
(2.) Another common feature presented by boulders in Scot- 
land is, that when they are longer than they are broad, the 
longer axis is parallel with the direction in which the boulder had 
been transported. Very frequently also, when one end is sharp 
and the other end broad, the former points towards the direction 
from which the boulder has come. On the theory of icebergs and 
floating ice this feature is intelligible ; on any glacier or ice sheet 
theory it is not. 
(3.) The existence of striae on boulders, and the circumstance 
that these striae are sometimes deeper at one edge than on the rest 
of the surface, is a new fact brought out in this last Report (page 
688 ). 
6. In several parts of the Report allusion is made to the evidence 
which boulders seem to afford, of the enormous denudation which 
there must have been in the district where these boulders are 
situated (pp. 662-667). 
7. Notice is also taken in two districts of the West Highlands 
of horizontal terraces on the sides of hills, up to a height of 1800 
feet above the sea. 
If these are to be ascribed to sea action, as suggested in the 
Report, they would only show that Scotland possesses the same 
features in this respect as Norway, Sweden, and America, where 
there are horizontal terraces to even greater heights. It is only 
reasonable to expect that in the north of Scotland such records 
of the ocean should be discernible, considering the enormous beds 
of sand and gravel found at great heights in many of the moun- 
tains. On Schehallion (Com. 2d Rep., p. 173) there is gravel up 
to a height of at least 3000 feet. 
In reference to the suggestion, that these terraces on the sides of 
mountains in the Highlands are marine, it is not unimportant to 
observe, that similar horizontal terraces at high levels occur also in 
lowland districts. Mr James Geikie, in his “ Great Ice Age,” 
refers to a series of “high level terraces of gravel and sand at 
Eaglesham,” about 12 miles S.W. of Glasgow, the highest being 800 
feet above the sea. “ I have also traced them,” he adds (page 248), 
“on the Moorfoots, up to 1050 or 1100 feet; and these, like the 
Eaglesham beds, seem equally to require the agency of the sea. 
Still farther south, high level shelves of gravel and sand have been 
