248 ANALYSES OF SOILS. 



Soils lying towards the Hudson river, western part of Schodack. 



ANALYSIS. 



Water _ 3-50 



Organic matter 6*00 



Silex 79-75 



Peroxide of iron 5*75 



Alumina 4 "25 



Carbonate of lime trace. 



Magnesia 0-75 



lOO'OO 



Soil from Schodack. 

 Sandy ; color yellowish brown. 



ANALYSIS. 



Water --. 2-07 



Vegetable matter 6-05 



Silex - 85-05 



Peroxide of iron 4*87 



Alumina . ^-- 1*75 



Lime and magnesia trace. 



99-79 



A variety of this soil is found in the black sand of the drift, in which one-fifth is coarse 

 gravel, and the remainder a fine sand in which the alumina is still less than in the pre- 

 ceding example. It contains 4-5 per cent of vegetable matter, but which, on cultivation, 

 soon disappears. It is a poorer variety than the yellow sandy loam. 



Soil from the ivcstern slope of Petersburgh mountain. 

 Uncultivated, and containing undecomiJosed slate. 



ANALYSIS. 



Water - 2-00 



Organic matter 2-75 



Silex 85-00 



Peroxide of iron and alumina . 6-75 



Carbonate of lime . 3-00 



Magnesia 0-50 



100-00 



The Sparry liiiicrock traverses the base of this slope. The only fact worthy of notice about 

 this soil, is the large percentage of lime which it yields. It is probably local, and its 

 general character indicates poverty rather than fertility. In some parts of Petersburgh 

 hollow, however, the soils are excellent. 



