lii MANURE. 



Water, 75.31 



Geine, 20.57 



Salts, ..-.•.. 4.02 



100. 

 The organic portion, or the geine, gave. 



Carbon, . . . . . , . 9 56 



Hydrogen, ...... 1.26 



Oxygen, 9.31 



Nitrogen, . . . . . . .54 



Horse-dung quickly ferments. It should be immediately 



removed and composted with cattle-dung, or sprinkled with 



plaster. It loses in a month, at least one-third of its weight 



by fermentation. 



204. Expressing the value compared with cow-dung, we 



have — 



Geine, 27. 



Salts, . 96 



Water, 71.20 



The geine, then, is nearly double that in cow-dung, and 

 the salts, which are mostly phosphates of lime, magnesia, 

 and soda, are about the same. If the nitrogen is regarded, 

 it is found about 50 per cent, greater than in cow-dung. 

 Hence, during the chemical actions of the production of am- 

 monia and nitrates, if the heat is in proportion to that action 

 we may possibly assign a reason, why horse-dung is a hotter 

 maimre than cow-dung. The nitrogen in horse-dung is 

 about f of one per cent., or this manure contains, in 100 

 parts : 



Geine, . . . . . . . .27. 



Salts, 96 



Carbonate of ammonia, 3.24 



