of EdinUtryh, Session 1883 - 84 . 817 
cliffs to the eastf as indicating probably the direction of the agent 
which flowed over them. 
Professor Heddle on this occasion, at Loch Maddy, met a 
gentleman, a member of the Glasgow Geological Society, who had 
just returned from Newton on the coast of North Uist. He 
described to the Professor a boulder he had seen there, 13x5x4 
feet, and another 9x5x5 feet. The former lay with its longer 
axis N.N.W. He stated also that the rocks on the west shore were 
generally glaciated, and from points between N.W. and S.W. {Sixth 
Report, p. 34). 
On Ganneum, a rocky islet north of Loch Maddy, there are 
two boulders of Laurentian gneiss, weighing, the one about 15, the 
other about 50, tons. Prom the corresponding slopes of the two 
ends which face each other, it has been inferred that they were 
originally one boulder, though now about 1 00 feet apart from one 
another, and with a projecting rocky knoll between them. The 
reporter, Alex. Carmichael, suggested that the boulder may have 
fallen from a height on this rock, and been broken into two frag- 
ments {First Report, p. 35). 
Harris. — (1) At Rodil (south end of Harris), rocks on Stron- 
davelhill smooth on west faces, rough on east faces. 
(2) At Borve, on west coast, a remarkable assemblage of boulders 
on hill about SOO^feet high, sloping down to W. by N., close to shore 
of the Atlantic {Lithograph No. 27, Plate IX.). The boulders lie on 
and against benches of gneiss rocks, these rocks also beiug smoothed 
and ground down from westward. These boulders lie in such a 
way as to show they have come from westward {Fifth Report, p. 23). 
(3) Similar appearances in Loch Castle Bay and Valley. 
(4) About 1 J mile south of Tarbert, several large boulders, which 
probably reached their positions by coming through depressions 
existing in the range of hills to N.W. 
(5) On hills north of Tarbert, up to height of 800 feet above sea- 
level, Convener saw many evidences of a N.W. current loaded with 
ice, which has brought boulders and smoothed the rocks {Fifth 
Report, p. 26, plate viii. fig. 28). 
Professor Heddle separately visited Tarbert, and specifies certain 
hornblendic boulders, which he traced to a rock identical in 
character a few hundred yards to westward {Sixth Report, p. 35). 
