REVIEWS GEOLOGICAL SURVEY OF CANADA. 



209 



details are given respecting the distribution of our metallic ores, the 

 metallurgy and general working of these, together with a large amount 

 of information on the applications, &c , of phosphate of lime, iron 

 ochres, peat, and other economical materials occurring within the 

 Province. 



Finally, the Report closes with a long and systematically arranged 

 description of the Post Tertiary or surface formations. In connection 

 with this, a useful table is appended of the directions of glacial striae, 

 as observed throughout a wide range of Canadian localities, extending 

 from west longitude 84'=' 29' to 69° 12', and from the parallel of 43*^ 2' 

 to that of 50° 36'. In our popular exposition of the Post-Tertiary 

 deposits of Canada, published in a recent number of the Journal, and 

 written some months before this portion of the Report came into our 

 hands, we subdivided the deposits in question into three series, viz : 

 1, Glacial deposits (Lower Drift clays, sands, and boulders) ; 2, Post- 

 glacial deposits (upper clays, gravels, and sand, or re-arranged glacial 

 materials, containing fresh -water shells in Western Canada, and marine 

 remains in the eastern part of the Province) ; and, 3, Recent deposits 

 (Calcareous tufa, shell marl, bog iron ore, ochres, peat). The same 

 order of arrangement, but with necessarily fuller elaboration, is 

 followed by the Survey, as exhibited in the annexed table, extracted 

 from page 887 of the Rport : 



Shell marl, calcareous tufa, peat, 

 Ochres, bog-iron and manganese ores. 

 Modern alluvions. 



U 



Western Canada. 



'Algona sand. 

 Artemisia gravel. 

 Saugeen fresh-water clay 



and sand, 

 Erie clay. . 



Eastern Canada, 



f St. Maurice and Sorel sands. 

 Saxicava sand of Montreal, 

 Upper sand and gravel of Beauport. 

 l_ Upper Champlain clay and sand of Vermont, 

 f Leda clay of the St. Lawrence and Ottawa. 

 \.\ Lower shell-sand of Beauport. 

 [Lower Champlain Clay of Vermont. 



Boulder formation or glacial drift. 

 Auriferous Drift of Eastern Canada, 



