NOVA SCOTIAN GEOLOGY—HONEYMAN. 59 
appeared to be an underlying rock. It had evidently been granite 
when the other rock was formed upon it. It is therefore at least 
of pre-Middle or Lower Silurian age. 
The gneissoid rocks are identical with those on the west side 
of the N. W. Arm, Halifax, the granites are identical, except that 
the variety is greater at Nictaux, the inclusions are similar to 
those which are of frequent enough occurrence in the vicinity of 
the line of junction of the granites and gneissoid rocks. | There 
is, therefore, no reason why we should regard the granites of 
Halifax and county as of different origin and age from those of 
Nictaux. 
ARCHAAN. 
In our field there are three granitic areas corresponding 
with the three sections. The area of section 1 extends fror 
Halifax Harbour, westwards to St. Margaret’s Bay, a distance o: 
20 miles, and from the Atlantic coast northward to Hammond’ 
Plains, a distance of 18 miles. 
The area of section 2 on the E. side of Fletcher’s Lake beyonc 
the Windsor Junction, I. C. R., its extent has not yet been ascer- 
tained. 
The area of section 3 extends from Lake Major to Ship 
Harbour, and beyond, a distance of 27 miles. Where I have 
examined it between Meagher’s Grant and Musquodoboit Harbour 
it commences about one mile north of the main road, Musquodoboit 
Harbour, and extends 6 miles. 
It is thus evident that this formation occupies a very large 
portion of our field and is entitled to greater consideration than 
is generally conceded to it. 
The part of this formation that is most accessible is the area 
of Ist section, this is admirably exposed on the west side of 
Halifax Harbour, the N. W. Arm, and the road at water works 
and there is little difficulty in traversing it in any direction. 
I have conducted the Institute over the most exposed portion 
from Purcell’s Cove to York Redoubt Point. This has also been 
an interesting field study to my students in geology during the 
past 10 years, so that by this time I am pretty familiar with 
its details and can dispense with my field-book generally in 
giving an account of it. 
