10 ON THE ANNUAL AND DltJUNAL DISTRIBUTION OF THB 



on this point, under the head of the Calciferous Formation, towards 

 the commencement of the present Part of our Essay). They are also 

 highly inclined, and consist chiefly of black and other coloured grap- 

 tolitic shales, with associated beds of dolomite, limestone, &c. At a 

 certain distance south of the St. Lawrence, and more especially in the 

 counties of Bagot, Drummond, Shefford, Orford, Brome, Stanstead, 

 Sherbrooke, Megantic, Beauce, &c., these beds are much altered by 

 metamorphic action : being changed into gneiss-rocks, talcose and 

 chloritic schists, serpentines, variously coloured marbles, and other 

 rocks of a similar metamorphic character ; whilst their fossils become 

 gradually obliterated. They are associated also in many of these lo- 

 calities, with vast irregular masses of copper and iron ores ; and are 

 traversed by veins containing galena, and here and there by auriferous 

 quartz-veins. These metallic deposits, with the marbles, slates, and 

 other economic substances of the region, are enumerated more fully 

 under. the Calciferous Formation, on a former page. The alluvial 

 matters derived from the disintegration of the metamorphic rocks of 

 this Eastern Basin, contain grains and occasionally small nodules of 

 native gold — as explained at the same place, and also under the des- 

 cription of that metal in Part II. The Notre Dame and Shickshock 

 Mountains, an extension of the Alleghanian chain, belong to the north- 

 eastern part of this area. These mountains, which rise in places to a 

 height of 4,000 feet above the sea, consist of metamorphic strata 

 of the Quebec group, including vast beds of serpentine and intermixed 

 chromic iron ore. The eruptive granites of the Megantic Mountains, 

 and those which occur in Winslow, Hereford, Stanstead, Barton, Wee- 

 don, and other neighbouring townships, lie also within the limits of 

 this metamorphic zone. 



ON THE ANNUAL AND DIURNAL DISTRIBUTION OF THE 

 DIFFERENT WINDS AT TORONTO. 



BY G. T. KINGSTON, M.A. 



DIEECTOE OV THE PEOVINCIAL MAGNETIC OBSEEVATOKT, TOEONTO. 



The accompanying tables were derived from hourly records of the 

 wind with Robinson's anemometer in the years 1853 to 1859 inclusive, 

 during which period, with very few and short interruptions, the instru- 

 ment was in continuous operation. 



