74 GEOLOGY AND MINERALOGY. 



SCIENTIFIC AND LITEEAEY NOTES. 

 GEOLOGY AND MINERALOGY. 



GEOLOGICAL MAP OF CANADA. 



The Special Correspondent of the Montreal Gazetle, writing from Piris, on the 

 22d of November last, remarks: — M. Elie de Beaumont, President of the Geolo- 

 gical Society of France, considers the small edition of the Geological Map of Ca- 

 nada, which has been published here, so excellent, that he has requested Mr. Lo- 

 gan to allow it to be introduced into the bulletins of the Society. It is one of the 

 prettiest specimens of geological chromo-lithography that has issued from the 

 press. The scale is one-tenth of Bouchette's Map of Canada. There are twenty- 

 two colors on the map, representing the formations, and these have required 

 fourteen lithographic blocks to print them. 



WOLFRAM. 



A well-crystallized specimen of Wolfram (the manganese variety 2 [FcO.WO 3 ] 

 + 3 [MnO, W03), a mineral it is believed hitherto unremarked in Canada, has 

 been lately met with in a granitic boulder, near Orillia, C. W. A detailed notice will 

 be given in a future number. E. J. C. 



FOSSILS FROM THE ESPLANADE CUTTINGS, TORONTO. 



From this spot some good casts of the following fossils may be obtained :— 

 Chaetetes lycoperdon; Glyptocrinus decadactylus (stem fragments); Modiolopsis 

 modiolaris, Ambonychia radiata; Murchisonia gracilis, Pleurotomaria subconica ; 

 Orthoceras lamellosum, 0. coralliferum (or a species of Endoceras?) It is perhaps 

 unnecessary to state that the above belong to the Hudson River group of the 

 Lower Silurians. E. J. C. 



GEOLOGY OF SCOTLAND. 



A recent paper read by Sir R. Murchison to the Geological Society, announces 

 the discovery of Upper Silurian fossils, in the parish of Lesmahagow, in Lanark- 

 shire. The fossils were first found by Mr. Sliman, a native of the district, which 

 has since been visited by Sir Roderick and Professor Ramsay. The succession of 

 rocks from the coal and mountain limestone downwards is traced in Nethan and 

 Logan waters, which are branches of the Clyde flowing north-eastward from the 

 borders of Ayrshire. The rocks mentioned are followed by conglomerates and 

 flagstones representing the old red sandstone, under which are dark gray, slightly 

 micaceous, flag-like schists, containing crustaceans of the genera of Pterygotus and 

 Eurypterus, with the Lingula cornea and Trochus helicites (shells). On the ground 

 of these fossils, Sir Roderick considei'6 the flag-like schists as the equivalents of 

 the upper Ludlow rock, or tilestones of England. In the geological map of Scot- 

 land, therefore, a track of country about ten miles broad, colored as old red and 

 coal by Dr. M'Culloch, must now be added to the Silurians. C. M. 



COMPOSITION AND FORMATION OF STEEL. 



At a recent meeting of the Boston Society of Natural History, Dr. Jackson 

 gave an account of some researches into the composition and manner of formation 

 of different kinds of steel. 



