92 COMPARATIVE TABLE. 



COMPARATIVE TABLE. 

 EngTiAND, etc. Nova Scotia and New Bettnswick. 



Upper Silurian. 

 Ludlow, Wenlock, and Llandovery or Upper Arisaig Series, Mascarene 

 Mayhill. Series ; Lower Arisaig, New Canaan, 



Wentworth, and Bestigouehe Series. 



Lower Silurian. 



Caradoc and Bala, with Snowdon Upper Cobequid Series, Slates, Fel- 



Felsites and Asli Beds, Coniston sites, Quartzites, and Greenstones. 



and Knock Series. 



Great Felsite and Trap Ash Series of Lower Cobequid Series, Felsites, Por- 



Borrowdale (Ward). phyrites, Agglomerates, and massive 



Syenite of Cobequids, Pietou, and 

 Cape Breton. 

 Lower Llandeilo Flags and Shales, Graptolitic or Levis Series of Quebec 

 Arenig Series, Skiddaw Slates, etc. and North New Brunswick, part of 



Cape Breton Series ? 



Cambrian. 

 Tremadoc Slates and Lingula Flags. Mire and St Andrew's Channel Series 



in Cape Breton. 

 Menevian Series. Acadian Series of St John, New 



Brunswick. 

 Longmynd Series, Harlech Grits, and Quartzite and Slate of Atlantic Coast 



Llanberis Slates. of Nova Scotia. 



Huronian. 

 Pebidian and Dimetian Series (Hicks), Huronian Felsites, Chloritic and Epi- 

 containing Felsite, Chlorite Schist, dotic Kocks of St John, Yarmouth, 



and Serpentine. and of Cape Breton in part. 



Laurentian. 

 Older Gneisses of Scotland and of Gneiss, Quartzite, and Limestone of 



Scandinavia. St John, Portland Group, Gneiss 



of St Anne's Mountain ? 



This table may at least serve to suggest comparisons, even though 

 some of its correlations should be shown, by further examination, 

 to require correction. In any case, the facts exhibited illustrate the 

 general truth, now well established, that throughout geological time, 

 the formations on the borders of the great oceans have been different 

 in character from those of the continental plateaus and from those of 

 the abysses of the sea. 



15. MINERAL RESOURCES. 



Coal, §c— The Report of the Inspector of Mines for Nova Scotia 

 for 187G, shows 24 collieries in operation. Their total produce was 

 709,G1G tons, but this is far below their present capacity, the trade 



