106 GEOLOGICAL AEEAg OF CANADA. 



they appear to be destitute of economic minerals. Outcrops occrttf^ 

 more especially, within and around the City of St. John, and in the 

 valleys of the St. John, Kennebecasis, and ISTerepis Rivers. 



A third series, consisting mostly of grey shales and limestones, 

 and siliceous conglomerates, with associated feldspathic and dioritic 

 beds, containing in places some obscure fossils of Middle and Upper 

 Silurian type. These higher Silurian strata occur chiefly on Foye's 

 Island and the adjacent coast, on the shores of Oak Bay, &c., and 

 along the granitic slopes of the Kerepis Hills in King's and Queen's^ 

 Counties. 



A fourth and higher series, composed of Devonian and Lower Car- 

 boniferous strata, represented essentially by shales, sandstones, and 

 conglomerates, and characterized for the greater part by the presence 

 of numerous fossil plants. The Devonian beds have been divided 

 into five groups, known, in ascending order, as the Bloom sbury^ 

 Dadoxylon, Cordaite, Mispec, and Perry groups — the latter regarded 

 as Upper Devonian. The lower and middle groups are principally" 

 developed around Carleton and other points on the west side of St. 

 John's Harbour ; at Mount Prospect and elsewere in the valley of 

 Little River; and also in Lancaster Parish and around Leprean 

 Basin, where a thin seaim of slaty anthracite has been observed in 

 one of their beds. The Upper Devonian or Perry strata also appear 

 at Point Leprean, but are chiefly exposed aroiind the City of St. 

 Andrews, where they extend over a comparatively large area The 

 beds recognized as Lower Carboniferous are entirely destitute of coaly, 

 and in this southern part of the proviace they occur only in the form 

 of detached outliers, of comparatively small extent— as on the west 

 side of Grand Bay on the River St. John, the south side of Kenne- 

 becasis Bay, and around Quaco, on the Bay of Fundy. 



A fifth series, composed of a few strips and patches of Triassic 

 strata, essentially in the form of soft, red sandstones, but associated^ 

 in places with a few layers of conglomerate. These strata occur 

 sparingly near Quaco Tillage and elsewhere on the Bay of Fundy,- 

 and also on the north shore of the Island of Grand Maimn, where 

 the characteristic red sandstone of the series is overlaid by a light- 

 grey siliceous bed holding copper ore, with an immense overflow of 

 columnar trap covering the whole. 



Finally, accumulations of boulder clay and gravel, with sands and 

 other recent surface-deposits, are spread very . generally over this 



