EXCURSIONS. 
239 
Island. The boulders of Scottish rock so common in the drifts, 
of the lowlands are confined to the belt of this coastwise flow, 
and are not found in the central hill group. 
On proceeding down Sulby Glen several exposures were 
examined, showing the mode of formation of the Crush Con- 
glomerates in the Manx Slate Series. These have been produced 
by the close folding of the slates, and the consequent breaking 
up of the thin beds of grit which they contain to form pebbles 
which are now involved in the slaty matrix. They strongly 
resemble in general the conglomerates produced by the cementing 
together of water-worn pebbles, but their origin was made 
perfectly clear by an examination of the sections seen in the 
Glen. 
The return journey was by rail to Ramsey and on by electric 
car to Douglas. 
On Tuesday the party was considerably diminished in 
numbers, several members leaving by the early boat. 
This, the last day of the Excursion, was devoted to an 
examination of the glacial deposits in the north of the Island. 
The northern part of the Island consists of a flat plain extending 
from the line of the Manx Northern Railway, between Ramsey 
and Ballaugh, to the Point of Ayre. This plain consists entirely 
of gravel and Boulder Clay of Glacial Age, the sohd rock floor 
being everywhere below sea level. Thus the pre-glacial coast 
of the Island must have run along the line of inland cliffs from 
Ramsey to Ballaugh. 
Through Bride and Andreas, and on to Jurby, runs a terminal 
moraine, the structure of which is well exposed in cliff sections 
between Marine View and Port Cranstall. 
Between this moraine and the old cliff line lies an area 
covered with peat and known as the Curragh. 
Between this and the moraine are several terraces of gravel, 
probably deposited by the flood- waters flowing from the ice- 
front through gaps in the moraine. 
On reaching Ramsey, members drove to Sea View, where 
they left the conveyances and proceeded along the beach ex- 
amining the cliffs en route. 
