GEOLOGICAL GLEANINGS—-HONEYMAN. 347 
London Exhibition. From Mr, Fletcher’s Report and Map, this 
appears to be an extremity of the Pre-Cambrian Rocks of the 
Craigneish Mountains. We also collected a specimen of marble 
subsequently at the other extremity of Craigneish. Our route 
now is from Whycocomagh to Strathlorne, along the west side of 
Lake Ainslie. Cream-brown sandstones of Lower Carboniferous 
age are exposed in all directions. We reach the South-East end of 
Lake Ainslie. The beautiful sheet of water extends all the way 
to Strathlorne, a distance of twelve miles. Its greatest width is 
about four miles. 
About a mile from the head of the lake we come to Archean 
rocks. (See Fletcher’s Map.) We collect specimens of these, 
granites. They extend to the lake. Where we cross them they 
are a mile in width. The area is sub-(isosceles) triangular, the 
base being on the lake. The height of the triangle is about 24 
miles and the base 2 miles. Two miles farther we come to the 
reputed oil region of Lake Ainslie. 
About 8 miles farther we reach the manse of Strathlorne. Our 
position is somewhat elevated and commands an extensive view. 
In front is an intervale through which winds a stream. This is 
beautiful with luxuriant herbage, as the season has been remarka- 
bly early and favourable for vegetation. Beyond le the Mabou 
Highlands with Cape Mabou, having an elevation of 1000 feet. 
These extend to the sea forming headlands, distinguished as Cape 
Mabou and Sight Point. The range of mountains has aN. E. 
and S. West trend. They extend from Broad Cove on the East 
to Mabou Harbour on the West. Like the Highlands of Scotland 
they have their glens and waterfalls. In anticipation, we would 
observe that. they have also had their glaciers in the past. We 
observe the map of the Geological Survey of Canada represents 
this area as Pre-Cambrian, 7. ¢., Archaean, according to our ter- 
minology. Hills rise all around. The Geological Map of the Sur- 
vey represents the Formation of the extensive area occupied by 
these as Lower Carboniferous Metamorphic. North of our 
‘position and at distances from two to three and a half miles 
are three areas, colored red, and distinguished by lettering as 
Dolerite and Diorite igneous rocks. The region has been very 
