NOVA SCOTIAN GEOLOGY.—HONEYMAN. 198 
accompanying the Report cf Progress of the Geological Survey 
of Canada, 1868-9. 
EASTERN EXTENSION RAILWAY. 
I am indebted to M. Murphy, C.E., Government engineer, 
for the correct delineation of this line of railway on my 
map. Passengers cannot fail in observing the great scarcity 
of rock cuttings along the line from New Glasgow to the eastern 
boundary of the county. Still it has been the means of reaching 
many points of interest to the geologist, and it has rendered of 
easy access a district of great interest, whose geology has been 
imperfectly comprehended and partly misunderstood. 
Leaving the New Glasgow station, we start from the northern 
side of Sir W. Logan’s coal area, traverse the lower carboniferous 
conglomerate of New Glasgow and succeeding grits. Turning 
eastward we proceed through drift cuttings and occasional sand- 
stones while crossing Sutherland’s River and French River. We 
continue to traverse the Lower Carboniferous through Piedmont 
Valley. Entering the basin of Barney’s River the geology begins 
to be somewhat obscure. In fact, we are taking a great geologi- 
cal leap. When we pass from the Barney’s River strata to the 
siding at Dewar’s furniture factory, we find that we have des- 
cended from the Lower Carboniferous to the Middle Silurian 
period. The geological gap between represents Devonian and 
Upper Silurian time. We have just crossed the Western branch 
of Barney’s River. Proceeding a short distance we cross a bridge 
over the middle branch, descending lower in Middle Silurian time. 
Still farther on we cross the eastern branch of Barney’s River. 
Here strata are seen partly covered by a dump. These are the 
bottom strata of this Middle Silurian series of the severa! 
branches of Barney’s River. The Middle Silurian series here, as 
elsewhere, includes A, B and B' of the “Upper Arisaig series.” A 
is equivalent to the “Mayhill Sandstones” of Wales, accord- 
ing to Salter. B’ is of Clinton age, U.S., according to Hall, and 
B intermediate, according to my own determination, of the ty- 
pical series in Arisaig Township of Antigonish County. I may 
state that B’ is the “ Lower Arisaig series” of “Acadian Geology.” 
Still proceeding on the line of railway, we pass from the base of 
