198 Farmyard Manure. 



According to these results, the same manure in a perfectly 

 dry condition will have the following composition : — 



Detailed Composition of Fresh Farmyard Manure in Dry State. 



*Soliible organic matter 7"33 



Soluble inorganic matter (asli) : — 



Soluble silica -703 



Phosphate of lime 'hSl 



Lime -It^b 



Magnesia -033 



Potash 1-695 



Soda -153 



Chloride of sodium -089 



Sulphuric acid -035 



Carbonic acid and loss "772 



4-55 



flnsoluble organic matter 76'15 



Insoluble inorganic matter ; — 



Soluble sihca 2-8Gr) 



■^ Insoluble silica 1'659 



Oxide of iron and alumina, ^vith phosphates .. 1*404 



Containing phosphoric acid ("^28) 



Equal to bone earth (-822) 



Lime 3-335 



Magnesia "424 



Potash -294 



Soda -077 



Sulphuric acid "210 



Carbonic acid and loss 1-722 



11-97 



100-00 



* Containing nitrogen "44 



Equal to ammonia -53 



t Contaiiung nitrogen 1-46 



Eqiial to ammonia 1-77 



"Whole manure contains ammonia in free state .. -10 



„ „ in form of salts -26 



Fresh farmyard manure being composed of the droppings of 

 horses, cows, and pigs, and the straw used for litter, according to 

 the above determination, in round numbers consists of two- 

 thirds of water and one-third of dry matters. Since this fresh 

 manure was not more than fourteen days old, and no rain had 

 fallen during the time it had lain in the dung-pit, all the water 

 is due to the urine and the moisture of the droppings and litter. 

 The quantity of straw employed as litter must necessarily affect 

 the general composition of fresh dung, and more especially the 

 amount of moisture which it contains ; but, I believe, we are not 

 far wrong by saying that fresh mixed dung, in the production 

 of which litter has been liberally supplied to the animals, when 



