134 Reviews-— Geological Survey of Canada. 
region of the Rocky Mountains gives them an especial interest, as 
few Graptolites have hitherto been noticed from that region.” They 
are referred by him to the age of the Utica slate, or to the Trenton- 
- Utica fauna of the United States and Canada. 
Mr. A. P. Low’s report (pp. 1 F—24 F) refers to the tract of 
country between lake Winnipeg and Hudson’s Bay, with notes upon 
the formations met with along the route followed by the explorer. 
These consisted of Laurentian, Huronian, Cambro-Silurian [Or- 
dovician |, Silurian, and Post-Tertiary (Drift). The report contains 
also a list of rare plants collected, and concludes with an Appendix 
containing meteorological observations. 
Dr. Robert Bell’s report (pp. 1 G-838G) contains an account of 
““An Exploration of portions of the Attawapishkat and Albany 
Rivers, Lonely Lake to James’ Bay. Besides recording the geo- 
logical features of the country passed through, observations were 
made upon its physical aspect, soil, climate, vegetation, etc., as far 
as these could be noted in a boat voyage. The rocks met with on 
the Albany river (upper part) consisted of hornblende-schist, granites 
(cut by dykes of diorite), and gneisses. Huronian rocks (hornblende 
schists) made their appearance in some parts of the river. At Lake 
Lansdowne (an expansion of the Albany) rocks of Silurian and 
Devonian age, the latter fossiliferous, made their appearance. 
The extent of the Paleozoic rocks west and south-west of James’ 
Bay leads to the inference that they occupy an area “as extensive as 
the whole region between the Ottawa River and Lakes Ontario, 
Hrie, and Huron.” No evidence was found of the presence of Car- 
boniferous rocks in this great basin. 
This report concludes with a description of the Drift deposits 
(principally Boulder-clay) overspreading the Paleozoic area west- 
ward of James’ Bay. These deposits were estimated to have a 
thickness ranging between 30 and 90 feet. The report is illustrated 
with photo-engravings of views upon the Boulder, Attawapishkat, 
and Albany Rivers. 
Mr. R. W. Ells treats in his report (pp. 1 J-70 J) of the geology 
of a portion of the Eastern Townships (Province of Quebec) 
‘relating more especially to the counties of Compton, Stanstead, 
Beauce, Richmond, and Wolfe.” The report is accompanied by a 
geologically coloured quarter-sheet map of this part of the Province, 
on a scale of 4 miles to 1 inch. The geological systems recognized 
were the following :— 
Silurian. Cambrian. 
Cambro-Silurian [or Ordovician]. Crystalline and igneous, 
volcanic, and plutonic. 
The Silurian rocks, which consist of limestones (sometimes fossili- 
ferous), calcareous slates, and conglomerates, associated with dolo- 
mitic slates, are much involved with the underlying older rocks, so 
that they were formerly mistaken for parts of the older systems. 
The Cambro-Silurian rocks consist of ‘“ graphitic, blackish or dark- 
grey limestone, with, in several localities, associated slates and sand- 
stones,” which were formerly regarded as of Silurian age, or, in 
