« SOOT A VALUABLE MANT7SB. It5 



Tsry greatly with the fuel, and with the circumstance! 

 of its combustion. In very dry seasons, soot, like 

 some other of the powerful manures we have meii» 

 tioned, sometimes does injury. From 30 to 60 busheb 

 per acre are applietl, commonly as a top dressing. It 

 gives a beautiful dark green color to grass or grain, 

 and on many soils increases tlie yield very largely. 

 If a little exertion were made, there are few places 

 where considerable quantities of this strong manure 

 could not be obtained. 



In Great Britain it has been proposed to crush de- 

 ca\' to mix them in heaps with quick- 



liiji allow the whole to stand for some 



numths. Granite contains much potash, and it is sup- 

 posed that by the prolonge<I action of the caustic lime^ 

 a part of this would become soluble, and fit for the 

 Boorishment of plants. In some parts of this country, 

 •HUMS of decayed rock exist, which it would be well 

 to examine with reference to their economical yalne 

 for applying to the land. 



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