244 THE DEVONIAN AND CARBONIFEROUS. ruuLL.80. 



St. John Harbor by a ridge of Laurentian gneiss. A similar division 

 was also noted east of the same harbor. " The northern limit of Devo- 

 nian rocks in the eastern part of St. John County may be traced from 

 Carleton Heights across the harbor of St. John, through the southern 

 part of the city of the same name." They occur again at Little River, 

 and farther west at Black River, near Bloomsbury Mountain ; thence 

 south to Milligan's Lake, thence northeast toward Quaco Hills. In 

 the western part of St. John County they overlie the Laurentian and 

 Huronian series, but occupy only isolated patches, which, however, 

 have been traced as far east as Charlotte County. 



Reference was also made to the occurrence of sedimentary rocks f{ at 

 Oak Bay and In the Nerepis Hills, which may correspond to the 

 1 Dadoxylon sandstones 7 of St. John County." Also in northwest 

 Charlotte occurs a series of argillites and sandstones resembling in 

 appearance the "Cordaites group" of St. John County, but including 

 a greater thickness of arenaceous beds. 



The "Perry sandstone group," which is typically represented at 

 Perry, Maine, is also seen at St. Andrews, New Brunswick. Although 

 this sandstone contains plants of the Upper Devonian type, the author 

 is inclined to consider it as lying at or near the base of the Lower Car- 

 boniferous, and characterized by an Upper Devonian flora. Similar 

 conditions were also noted at Point Lepreau. The author gave a list 

 of the fossil plants found in the Perry sandstone. 



The " Lower Carboniferous rocks " of eastern and central New Bruns- 

 wick occupy the Belleisle and Kennebeccasis Valleys, Kings County, 

 extending along Petitcodiac River through Albert and Westmoreland 

 Counties, around the margin of the central coal field, through Queen's, 

 York, Northumberland, and Gloucester Counties to Bay Chaleur. 

 Isolated areas also occur in Victoria and Carleton Counties. The 

 " Carboniferous rocks " proper occupy by far the largest territory of 

 any series in New Brunswick. They cover the counties York, Queen's, 

 Sunbury, Kent, and Northumberland. Their most northerly limit is 

 at Bathurst, Bay of Chaleur, the most southerly at Shediac, West- 

 moreland County. They consist mainly of sandstones, shales, and con- 

 glomerates of gray color and coarse texture. A list of the fossil plants 

 of this series was also given. 



Mr. L. W. Bailey, 1 in 1872, recorded the occurrence of undoubted 

 Carboniferous rocks bearing plants in the eastern part of Kings County 

 belonging to the Upper or Middle formation. There is also evidence 

 of nonconformity between the Coal Measures and the Lower Carbonif- 

 erous formation. 



Mr. Charles Robb, 2 in 1872, reported that the Carboniferous rocks of 

 northwestern New Brunswick consist mainly of arenaceous shales and 



'Bailey, L. W.: Report on geological investigations in New Brunswick. Geol. Survey Canada: 

 Report of progress for 1871-72, 1872, pp. 142-144. 



2 Robb, Charles: Supplementary report on Ihe geology of Northwestern New Brunswick. GeoL 

 Survey Canada: Report of progress for 1870-'71, 1872, pp. 241-251. 



