AMERICA. 141 



56. Notes the occurrence of Lignite in the Swan Kiver valley, where 

 all the rocks are probably Cretaceous. Deals with the superficial 

 geology of the N.W. territory, and notices the diminution of water 

 therein in recent times. 



On the Country between the Upper Assineboine River and Lakes 

 Winnipegosis and Manitoba. By J. W. Spencer. Pp. 57-70. Contains 

 observations on the Neozoic deposits, with 2 sections in parts of Swan 

 River. A report is given by G. M. Dawson on microscopic examination 

 of limestones of Swan River and marls of Thunder Hill. The Devonian 

 deposits are considered with regard to distribution and fossils. The 

 economic minerals include ironstone, lignite (assay given), peat and salt 

 (analysis given). 



On explorations in British Columbia. By James Richardson. Pp. 

 71-83. The geological features considered under the heads : — Super- 

 ficial Deposits ; Cascade Mountains and Vancouver Island Crystalline 

 Series ; The Coast from Douglas Channel to Wrangel in Alaska ; The 

 Nanaimo Coal Basin, with localities of coal or lignite. 



Geological Observations in New Brunswick. By L. W. Bailey and 

 G. F. Matthew. Pp. 84-89. The " pale argillite series " is Devonian. 

 Describes the " M ascarene " series (U. Silurian). 



Second Report on the Boring Operations with the Diamond Drill at 

 Newcastle Bridge, Queen's Co., New Brunswick. By R. W. Ells. Pp. 

 90-96. Shows the beds passed through. 



On the Iron Ore Deposits of Carleton County, New Brunswick. By 

 R. W. Ells. Pp. 97-104, with a map showing distribution. Gives the 

 average of 6 analyses of ore from Iron Ore Hill, by John Mitchell. 



Exi^lorations and Surveys in the Rear Portions of Frontenac and 

 Lanark Counties, together with notes on some of the economic minerals 

 of Ontario. By H. G. Vennor. Pp. 105-165, with a geologically shaded 

 map. Reports on the map of N. Burgess, with a section. Notices the 

 iron ore deposits, with an analysis of magnetite by Mr. C. Hoffmann, 

 and a generalized section across Bedford. The structure of Lanark 

 County is considered under 5 heads : — Mica Schist Group ; Dolomite and 

 Slate Group ; Diorite and Hornblende-Schist Group ; Crystalline Lime- 

 stone and Hornblende-rock Group ; Gneiss and CrystaUiue Limestone 

 Group, with section. The geological horizon of Eozoon (below the 

 apatite-bearing series) is considered. Gold, copper, galena, and plum- 

 bago are noticed. 



On Explorations and Surveys in Cape Breton, Nova Scotia. By C. 

 Rohb. Pp. 166-266. 1. Carboniferous Limestone. 2. Millstone Grit, 

 coal scams therein, with a description of their fossil plants by Dr. 

 Dawson. 3. Coal Measures, including a list of plants with two now 

 species (Dawson) — Si(/illaria Lorwayana and S. Syndensis (woodcut) ; 

 Subordinate Basins in the Coal Field (Cow Bay, Glace Bay, Sydney 

 Harbour, and Bras d'Or) ; many sections given, &c. ; tabular view of 

 the equivalence of seams ; Cape Dauphin district described (coloured 

 geological map and sections). Economic minerals noticed. Surface 

 geology (glacial action, erratics, the excavation of Bras d'Or Lake, &c.). 



