42 THE CARBONIFEROUS. 



Ft. In. 



1. " Can-" Scam .... 4 



Sandstone, Shales, etc., about . 429 



2. "Paint" Seam . . . . 13 4 



Sandstones, Shales, etc., about . 216 



3. " Crandall" Seam ... 44 



Sandstones, Shales, etc., about . 400 



4. " Ross" Seam .... 67 



Sandstones, Shales, etc., about . 325 



5. " William Eraser" Seam . . 2 



Sandstones, Shales, etc., about . 112 



6. "Number Three" Seam . . 4 



Sandstones, Shales, etc., about . 138 



7. "II. M'Gillivray" Seam . . 5 



Sandstones, Shales, etc. . . 122 



8. " I). M'Gillivray " Seam . . 2 



Sandstones, Shales, etc., about . 1000 



9. "Fraser" Seam .... 6 



Sandstones (Millstone-grit series). 



This series of Coal-beds I believe to represent the whole of the 

 workable beds known at North Sydney as well as those of Glace Bay 

 and Cow Bay. The high angle of dip brings their outcrops nearer 

 ^) to one another than is usual in this district, and a good coast cliff and 

 beach section enables them to be well studied. This section is the 

 best guide I have seen to the vexed question as to the equivalents of 

 the several Coal-beds in the different mining areas of Cape Breton, 

 but its application is by no means easy. On the south side of Sydney 

 harbour the Coal-beds above-mentioned dip about N. 5° E. at angles of 

 30° to 45°. On the opposite side of the harbour the corresponding 

 beds dip to the north-east at an angle of 10 degrees or less. Conse- 

 quently the beds, crowded together on the south side, spread out like 

 a fan on the north side. In addition to this, when we measure the 

 thickness of the beds intervening between the several seams of coal, 

 it is evident that they must vary greatly both in character and thick- 

 ness within very short distances. Making due allowance for these 

 differences, it would seem that the Paint scam of the above list 

 must be the Lloyd's Cove seam of the North Sydney series. In 

 this case the main seam at North Sydney is equivalent to the Ross 

 seam. The equivalency of these beds with those of Glace Bay and 

 Cow Bay is more uncertain. I was inclined to correlate the Paint 

 seam with that known as the Phelan at Glace Bay, and to suppose 

 that the lower seams were still to be found there ; but different views 



