864 
Proceedings of the Royal Society 
axis ^^.N. W., at about 550 feet above sea ; — 8 x 5 x 5 feet, major axis 
N.JST.W., at about 400 feet above sea ; — a flat block of mica schist 
11x7 X 2 feet, at 620 feet above sea, major axis E. and W. On 
this last-mentioned boulder there are ruts and striae running N.W., 
and about thirty-six artificial cup-markings. 
On Drynie Farm, S.W. of last mentioned boulder, at 610 feet 
above sea, a mica schist boulder 12x8x4 feet, major axis KKW. 
On its surface six stria tions, running N. and S., with one cup-mark 
at south end. 
On Tulloch Hill, another pinkish-coloured granite boulder 900 feet 
above sea, 8x6x4 feet, with major axis N.W. The prevailing 
rock on Tulloch Hill is bluish-grey indurated sandstone slate. 
Where strata crop out on opposite side of valley their edges have 
been rubbed and smoothed on their north faces by some natural 
agency moving in a direction from H.W. 
On north slope of Tulloch Hill a moor stretches up to height of 
about 1100 feet, on which many small boulders of same kind as 
above, — and to be found also all the way down to Cromarty Firth. 
Mr Morrison set out on an excursion to west, with the idea of 
discovering the direction from which these Tulloch boulders had 
come. At Ach-na-Clerach he found “ a gigantic mass of the same 
kind of granite as the boulders, 25x23x12 feet, — the rock on 
which it was resting being different from that of the boulders. 
At the confluence of the rivers Glascarnoch and Strathvaick he 
found rock of the same variety as the Tulloch boulders, but at a 
lower level than Tulloch Hill. He inferred that the boulders had 
been carried eastwards over the south shoulder of Little Wyvis, 
and that “ they probably came from Carn-Cuineag through the open- 
ing occupied by Loch Glass.” 
Mr Morrison, accompanied by some geological friends, proceeded 
next to Cairn Cuuneag^ 2744 feet above sea. It is the highest hill 
in Easter Koss. Its two peaks, or Pitcher lugs^ are pinnacles of 
granite. Its slopes are covered by enormous masses of granite 
semi-cubical in shape. An opinion was formed that most of the 
boulders in Easter Koss had been derived from this mountain, and 
its lesser neighbours Carn-Maine, and Cam an Lochan. 
The saddle between the two peaks appears like a shingly beach ; 
— rounded stones of about 10 pounds weight are packed here and 
