204 ROYAL SOCIETY OF CANADA 
Mr. Scott Barlow and Mr. H. Fletcher, the Wentworth and Farmington 
areas being among the most important and best known. These appear 
to belong to the lower half of the Silurian. 
At White Bay and the Bay of Exploits Silurian strata occur in 
Newfoundland. 
In New Brunswick, on the Beccaguimic river, in Charlotte county, 
near Canterbury in York Co., typical areas of Silurian rocks have been 
described by Prof. Bailey, Dr. Ells and Mr. Chalmers and other writers. 
In the northern. part of this province, in the vicinity of Dalhousie, on 
Elm-Tree river, and other localities, rocks belonging to the Upper or 
Neo-Silurian consisting for the most part of limestones and slates have 
been recorded. The Dalhousie limestones bear a striking resemblance 
to the limestones of Lower Helderberg age in New York State. 
In the peninsula of Gaspé, besides the Chaleur group or formation 
of Billings, which occupies a position about the horizon of the Guelph 
formation of Ontario, and the Chatte river limestones, several important 
areas of limestones have been recorded by Sir William Logan, and Dr. 
Ells. At Port Daniel, Percé, the Percé formation is met with, exhibiting 
cream-coloured fossiliferous limestones about the age of the Wen- 
lock of England and Niagara of Ontario and New York ; and, along the 
Restigouche, Grand river, and Scaumenac river, as well as on the Casca- 
pedia river, formations probably equivalent to the Niagara, Guelph, and 
Lower Helderberg and Water Lime group of the west, have also been 
recorded. In the Eastern Townships of Quebec, south-east of the great 
fault, in Stanstead, and Compton counties, limestones and shales holding 
Silurian fossils constitute several more or less isolated, but at one time 
connected Silurian strata, overlying unconformably the upturned edges 
of the older formations which have been eroded. In the more disturbed 
regions of these townships the upturned edges of the older formations 
have been recorded. In the more disturbed regions of these townships 
the Silurian strata often assume the character of mica schists, and 
when they are fossiliferous, resemble closely rocks of the same age in the 
Scandinavian peninsula, the organic remains suffering deformation and 
obliteration in direct ratio to the degree of alteration of the matrix. 
The Laurentian Highlands.—In the region comprised under this 
term, the most important outcrop of Silurian occurs in the Hudson Bay 
basin. On the Nelson river about sixty miles above its mouth, on the 
Attawapishkat river, and on Mansfield and Southampton island strata 
which can be referred to this system have been described by Dr. Bell, 
and the fossil remains identified by Mr. J. F. Whiteaves and the writer. 
In the islands above named in connection with the Ordovician, Silurian 
strata overlie the former in regular succession. Fossil remains derived 

