of Edinhurgli, Session 1882 - 83 . 
3 99 
move in such a direction, as to touch or strike, or at all events press 
severely on the S.E. slope. In some places the striae were seen to 
have been more deeply cut at their west ends than at their east^ends. 
Some of the striae at their west ends are as much as 3 inches wide. 
The direction of the striating agent must therefore have probably 
been from W. by S., or due west, to have made the striae. Portions 
of the smoothed rock surfaces were broken into small shallow 
depressions, and in these pebbles of hard rocks were observed, some- 
what firmly packed, and where probably they have been lying since 
the time they were originally deposited. It was by such tools as 
these that the striae had no doubt been formed on the smoothed 
surfaces of the rocks. A representation of a few of these striae, and 
of the depressions in the rocky surface, is given in diagram 7. 
That there must have been heavy pressure on these smoothed 
rocks, is evident from this fact, that though the rocks are dipping 
or sloping down towards the south, at an angle of as much as 40°, 
the striae are all horizontal, or nearly so, — showing that the striating 
body was of such hulk and weight as to keep steadily on in its 
course, in spite of the tendency, by gravitation, to slide down the 
face of the rock. 
On the hill where these smoothed and striated rocks occur, 
boulders of small size (comparatively), and much drift of hard 
rounded pebbles, are plentiful. 
After examining these rocks I climbed the hill to the eastward 
to a height of about 600 feet, and passed several striated rocks, and 
three boulders of the following sizes : — 11 x 7 x 3 feet, 12 x 5 x 
feet, 15x6x4 feet. Each boulder has its longer axis pointing 
in the same direction, viz., W.S.W. and E.hf.E. These are situated 
near the top, and on the side of the hill sloping down towards the 
S.S.E. 
Having crossed the ridge of the hill towards the north, and 
descended a little way on the side sloping down towards IST.N.W., 
I was struck at finding almost all the boulders lying with their 
longer axis W.N.W. and E.S.E. The following are the sizes of 
the largest boulders examined: — 11x6x3 feet (with sharp end 
to H.W.), 14x8x3 feet, 14x7x7 feet (its longer axis was 
W.S.W.), 21 X 7 X 3 feet, 9x6x4 feet (its longer axis due west) ; 
but here there was a change in the down slope of the hill,’ viz.. 
