4 FAKMYAED MANURE. 



upon your mind that it is the complexity of the composition 

 which renders farmyard manure so valuable and indispensable 

 to the farmer. It is a perfect manure, because it contains all the 

 elements necessary for supporting a healthy and vigorous growth 

 of the plant ; and it is a universal one, because it universally 

 produces those effects, and upon a great variety of agricultural 

 products. Another reason why it is so valuable is, that it pro- 

 duces mechanical effects which no artificial manure that I am 

 acquainted with can produce. The important mechanical effects, 

 especially of long dung on clay soils, are not to be underrated. 

 These mechanical effects are attended with highly beneficial 

 results, which cannot be attained by any artificial manure. 



Composition of fresh Farmyard Manure. By way of illus- 

 tration, the subjoined Tables, embodying the results of a careful 

 recent examination of farmyard manure, may be given : 



Composition of Fresh Farmyard Manure (composed of Horse, Pig, and 

 Cow Dung). 



Water ., 66'17 



"Soluble organic matter 2*48 



Soluble inorganic matter (ash) : 



Soluble silica '237 



Phosphate of limo -201) 



Lime -066 



Magnesia "Oil 



Potash -573 



Soda '051 



Chloride of Sodium '030 



Sulphuric acid '055 



Carbonic acid and loss '218 



i .n A 



-L OT: 



flnsoluble organic matter 25*70 



Insoluble inorganic matter (ash): 



Soluble silica '967 



Insoluble silica *561 



Oxide of iron, alumina, with phosphates . . . . *596 



Containing phosphoric acid (*17!3) 



Equal to bone earth .. .. (-386) 



Lime T120 



Magnesia '143 



Potash -099 



Soda '019 



Sulphuric acid '061 



Carbonic acid and loss . . '484 



4>05 



100-00 



* Containing nitrogen *149 



Equal to ammonia '181 



t Containing nitrogen "494 



Equal to ammonia *599 



Whole manure contains ammonia in free state . . '034 



in form of salts '088 



