338 GLACIAL GEOLOGY OF CAPE BRETON—HONEYMAN. 
parallel, commencing at MclIsaac’s Pond, north of the Mabou 
Highlands, passes through Loch Ban and along the major axis 
of Lake Ainslie, proceeding onwards to St, Patrick’s Channel it 
avoids the Archzean areas on either side of Lake Ainslie, passes 
over an extension of the Malloch area at the foot of the Lake, 
goes through a pass of Archzean on the Channel and proceeds to 
the Great Bras d’Or. 
We now proceed to work along and between these two 
parallels. 
The Presbyterian ‘Manse’ of Strathlorne is our headquarters. 
It stands on the front of a range of low hills of sand and _ boul- 
ders, or moraine, which covers and completely obscures the 
underlying Lower Carboniferous. These extend north and 
south, to the north of our station one and six-tenths of a mile, 
and south of it about half a mile. Here it is terminated by a 
mountain with rocks outcropping on the sides. It extends 
towards Loch Ban and a range of Lower Carboniferous moun- 
tains which begin on the north of Loch Ban and terminate with 
Dioritic mountains. The length of this range is about two miles. 
The width of our sand hills is half a mile (EK. and W.) Extend- 
ing to the west, north and south is a broad and fertile valley, 
through which a river flows. This is bounded on the west 
by the Mabou Highlands. These extend between our paral- 
lels having a N. E. and 8S. W. trend, and reach to the Gulf 
of St. Lawrence. These are 94 miles long. Their width E. and 
W. is 6 miles. Towards our Mabou Parallel the width is 8 miles. 
The formations of the Highlands are Archean and Lower Car- 
boniferous. The extreme width of the formeris 44 miles. Over 
this extensive area we have to search closely for outcrops of rocks. 
All is covered with drift and soil. We have to be guided largely 
by the contour in defining the lines of the several formations. 
The Geological Survey distinguishes the Lower Carboniferous of 
our hills and mountains as ‘ Metamorphic’ Lower Carboniferous. 
We do not appreciate this distinction. As usual we divide the 
Carboniferous of the District including the Coal Measures, into 
Lower and Middle. Our previous examinations of the district in 
1851 and 1861 were confined to the Mabou Harbour and Coal 
