252 THE DEVONIAN AND CARBONIFEROUS. [bull. 80. 



Division 4 occurs most largely developed "in the southward exten- 

 sion of the Sydney Harbor basin, and on the Boisdale and Washabeck 

 Hills." Division 5, which attains its greatest thickness on the Washa- 

 beck peninsula, is characterized by prominent beds of limestone and 

 gypsum, accompanied by marls, sandstone, and conglomerate. Division 

 6 is " found on Sydney River and the eastern shore of Forks Lake, 

 divided from similar deposits in t>he valleys of the Gaspereaux and 

 Salmon Rivers by the East Bay anticline." Sandstones of this series 

 are found on Boulardrie Island. Plant remains are reported from the 

 sandstones. 



Mr. Fletcher, in 1879, 1 reported a series of rocks, supposed to be of 

 Devonian age, as " extending from Loch Lomond to St. Peter's, and re- 

 appearing on Isle Madame and in Guysborough and Antigonish Coun- 

 ties." They " bear a very close lithological resemblance to the Oordaite 

 shales and Dadoxylon sandstones of New Brunswick." This series is 

 also accompanied by intrusion of trap, such as Mount Granville and 

 Campbell Hill. 



The il Carboniferous conglomerate" was found at Mira Bay overly- 

 ing the U pre-Silurian felsites." This is followed by limestones, and in 

 turn is overlaid by the Millstone grit. The Carboniferous conglomerate 

 and limestone were observed also at Belfrey Lake, Salmon River, and 

 Grand River Falls, but only as small outliers. 



The Millstone grit was recognized near Salmon River, having a dip 

 S. 46° E. 80°. A coal seam was found in these rocks near Catalogue 

 Gut. 



According to Messrs. Bailey, Matthew, and Ells in 1880, 2 the De- 

 vonian rocks of southern New Brunswick occupy the following areas : 

 (1) A basin east of St. John Harbor extending through the Mispec 

 Valley and northeasterly across the Black River; (2) outcrops on 

 Coal Creek, Canaan River, and North Fork ; (3) small areas about 

 St. John and Carleton, with possibly Partridge Island ; (4) area east 

 of Spruce Lake; (5) an area extending from Musquash Harbor to 

 Lepreau Harbor, and including the Belas Basin, and a small area from 

 Chance Harbor to Dipper Harbor ; also an area in the north of Char- 

 lotte County and extending into Queen's County. 



The estimated thickness of the Devonian rocks of the St. John Harbor 

 series is 7,500 feet. Fossil remains of plants and insects occur in them. 

 The Lower Carboniferous rocks occur around the head of Grand Lake 

 and in the counties of Sunbury and Queens, on the south edge of the 

 coal basin. They also form the greater part of the valley of the Ken- 

 nebeccasis Bay and River. Although these beds contain fossils of 

 Devonian types, they still lie unconformably upon the true Devonian 



1 Fletcher, Hugh : Report of explorations and surveys in Capo Breton, Nova Scotia. Geol. Survey 

 Canada : Report of progress, 1877-78, 1879, F, pp. 32. Map. 



2 Bailey, L. W., G. F. Matthew, and R. W. Ells : Report on the geology of southern New Brunswick' 

 embracing the counties of Charlotte, Sunbury, Queens, Kings, St. John, and Albert. Geol. Survey 

 Canada: Report of progress, 1878-'79, 1880, pp. 1D-26D. Map. 



