NOVA SCOTIAN GEOLOGY — HONEYMAN. 193 



accompanying the Report of 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 several 

 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 



