100 SIXTEENTH REPORT ON THE CABINET OF NAT. HISTORY. 



At the latter, a few plants have been found in shales of Upper Devonian 

 age. The plants found at Gaspe were described in my former paper, and are, 



Prototaxites logani, Dawson. 

 Lepidodendron gaspianum, Dawson. 

 Psilophyton princeps, Dawson. 



Psilophyton robustius, Dawson. 

 Selaginites formosus, Dawson. 

 Cordaites angustil'olia, Dawson. 



The plants from Kettle point, noticed with doubt in my former paper, I 

 may now refer to the following species : 



Sagenaria veltheimiana, Gceppert. j Calamites inomatus, s. n. 



4. New- Brunswick. The rocks in the vicinity of the city of St. John, 

 constituting a part of the coast metamorphic series of New-Brunswick, 

 have been described in the official reports of Dr. Gesner and Dr. Robb ;* 

 and additional facts respecting their stratigraphical relations, ascertained 

 by Mr. Matthew, were stated in my paper in the ' Canadian Naturalist ' 

 already referred to. The new interest attached to these beds, in consequence 

 of the discovery of their copious fossil flora, induced me to re-examine all 

 the sections, in company with Mr. Matthew, during my late visit j and 

 that gentleman has recently extended the limits of our observations east- 

 ward in the direction of Mispec. The results of these observations I shall 

 state in some detail, as the precise age of the St. John series has not until 

 now been determined. 



The oldest rocks seen in the vicinity of St. John are the so-called syenites 

 and altered slates in the ridges between the city and the Kennebeckasis 

 river. These rocks are in great part gneissose, and are no doubt altered 

 sednnents. They are usually of greenish colors ; and in places they contain 

 bands of dark slate and reddish felsite, as well as of grey quartzite. In 

 their upper part they alternate with white and graphitic crystalline lime- 

 stone, which overlies them in thick beds at M'Clakeney's and Drury's Coves 

 on the Kennebeckasis, and again on the St. John side of an anticlinal formed 

 by the syenitic or gneissose rocks at the suburb of Portland. These lime- 

 stones are also well seen in a railway cutting five miles to the eastward of 

 St. John, t and at Lily lake. Near the Kennebeckasis they are unconformably 

 overlain by the Lower Carboniferous conglomerate, which is coarse and of 

 a red color, and contains numerous fragments of the limestone. 



At Portland the crystalline limestone appears in a very thick bed, and 

 constitutes the ridge on which stands Fort House. Its colors are white and 

 grey, with dark graphitic laminae ; and it contains occasional bands of 

 olive-colored shale. It dips at a very high angle to the southeast. Three 

 beds of impure graphite appear in its upper portion : the highest is about 

 a foot in thickness, and rests on a sort of underclay ; the middle bed is 



* Gesner's Second and Third Reports on the Geological Survey of New-Brunswick; 

 Robb, in Johnston's Report on the Agriculture of New-Brunswick. 



t At this place the limestone is penetrated by a thick vein of graphic granite, hold- 

 ing black tourmaline; and at Drury's Cove, not far distant, it contains dykes of dark 

 colored trap. 



