ANALYSISOF SOILS. 331 



many years for maize, having been distinguished for its steady and aliundant yield of tliis 

 exhausting crop. The element whicli seems to have been removed by cultivation, is 

 magnesia. 



Soil near Hoosic corners. 

 This soil was not fused with soda. 



ANALYSIS. 



Water 4-25 



Organic matter 12-69 



Silicates 69-78 



Peroxide of iron 5-75 



Alumina 3-92 



Phosphate of alumina . 1 "IS 



Carbonate of lime 1-16 



Magnesia 1-30 



100-00 

 The succeeding analysis was made of a soil which has never been manured, and has 

 been in grass thirty years : it has, however, received the wash of a higher piece of ground. 

 It is upon the same formation as the preceding. The land is owned and cultivated by 

 Mr. L. C. Ball, of Hoosic falls, three miles north from Hoosic corners. 



Fig. 36. 



1. Position of the soil. b. Soil in vrliich there is much disintegrating slate. 2. Slate beneath, with a southeasterly 

 dip, which is the uniform dip of all the underlying rocks through this range of country : it varies in amount, 

 passing through a range from 35" to 0.5°. The slates, in consequence of their close packing, and which lias been 

 increased by compression, never permit the water to percolate through them. 



.4.NALVSIS. 



First process. 



Water 22-75 



Organic matter 17-57 



Silicates and silex 39-97 



Peroxide of iron and alumina lG-93 



Sulphate of lime 1 -50 



Carbonate of lime.. 0-73 



Lime in combination with silica 0-00 



Magnesia 0-30 



Second process. 



0-00 

 0-00 

 32-75 

 6-00 

 0-00 

 0-00 

 1-25 

 0-00 



99-75 40-00 



We have usually found sulphate of lime in the soils of the Taconic district, 



42' 



