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Peat. Peat is very analagous to mould, 

 differing, however, in an absence of matters 

 soluble in water ; nevertheless, when exposed 

 to air and moisture, it generates a certain 

 quantity of soluble alkaline principles, and 

 hence its employment in certain localities as 

 manure. Peat being charged with tannin, 

 vegetable and mineral acids, hydrogenated 

 matters, &c., requires some preparation pre- 

 vious to its application. Used as a litter, in a 

 dry state, it is an economical substitute for 

 straw, and the matters which it absorbs readily 

 neutralize its acids, and augment its value as 

 a manure. It is also used admixed with dung; 

 but is only applied to agriculture when an ex- 

 cessive supply diminishes its value as a fuel. 



We now proceed to speak of the residua of 

 different plants, whose fruits, roots or stems 

 have been treated for the extraction of their 

 juices. 



Barley -waste (Malt-dust). The waste bar- 

 ley which has served for the production of 

 beer, is used, with success, as a manure. 

 Dried upon kiln-beds it equals 2\ times its 

 weight of dung, and takes the name of tou- 

 raillons. In England, they use fifty to sixty 

 bushels per acre, for the culture of wheat. 



