Reports & Proceedings—Geological Socrety of London. 133 
2. January 5, 1916.—Dr. A. Smith Woodward, F.R.S., President, 
in the Chair. 
The Secretary read the following communication :— 
‘The Islay Anticline (Inner Hebrides).”” By Edward Battersby 
Bailey, B.A., F.G.S., 2nd Lieut. R.G.A. 
The observations made by Peach, Wilkinson, Thomson, Macculloch, 
and others in regard to the ‘ Schistose Islands’ of Scotland are passed 
in review, and many of them confirmed. In certain directions, 
however, new interpretations are offered. The following suggestions 
are among those put forward :— 
1. An important fault, perhaps the Great Glen Fault, passes 
through the hollow separating Colonsay and the western peninsula of 
Islay from the rest of the archipelago. 
2. The dolomitic ‘Fucoid Beds’ of Wilkinson and Peach are not 
the highest geological subdivision of the district, either strati- 
eraphically or structurally. hey are earlier than, and structurally 
they underlie, the greater part of the Islay Quartzite, as well as the 
whole of the Port Ellen Phyllites and Easdale Slates. 
3. In conformity with the previous paragraphs, several correlations 
must now be abandoned. Thus the Scarba Conglomerate is not the 
equivalent of the Portaskaig Conglomerate, but is of considerably 
later date. 
4, Small-scale isoclinal folding is of less significance in the greater 
part of the district than has sometimes been thought. The main 
feature of the tectonics of Eastern Islay is a comparatively simple 
isoclinal anticline overthrown towards the north-west upon the Loch 
Skerrols Thrust. The thrust itself has been well described by 
Dr. Peach and Mr. Wilkinson. 
5. Finally, grounds are given for believing that an accurate 
knowledge of the structure and rock-concession of Islay is of crucial 
importance in determining the tectonic plan of the West Highlands 
generally. : 
3. January 19, 1916.—Dr. A. Smith Woodward, F.R.S., President, 
in the Chair. 
The following communication was read :— 
“The Physical Geography of Bournemouth.” By Henry Bury, 
MAAC ES S., H.G-.S. 
_ The curves of the plateaux in the Hampshire basin (including that 
of Bournemouth) show a marked relation to the main river-valleys, 
indicating that the latter were already in existence (though probably 
much less deep than now) before the plateau-gravel was deposited. 
On the other hand, the fact that this gravel everywhere covers the 
main watersheds is inconsistent with the theory of deposition on 
simple river-terraces, and points to widespread floods and the formation 
of gravel-sheets at one or more periods. Paleoliths are most frequent 
at low levels (below 140 feet O.D.), but occur up to 350 feet O.D., 
where their presence must be due either (1) to a vast accumulation of 
gravel in Chellean times, or (2) to channelling at later dates. Both 
hypotheses present difficulties. 
