370 Aiialysis of Manures. 



The following is the analysis of the ash : — 



Ash of Box Manure. 



Soluble silica 27*90 



Phosphoric acid 5'11 



Sulphuric acid 1"11 



Carbonic acid 0'95 



Lime 14-41 



Magnesia 2-40 



Peroxide of iron and alumina .. .. 7"81 



Potash 11-79 



Soda 2-05 



Chloride of potassium None. 



Chloride of sodium 3-82 



Sand and clay 21-80 



99-15 



Examined for nitrogen, the manure gave — 



1st experiment .. .. 0-471 ^^^^^ ^^ ^^^ ^^^^^^^^ ^^ .^^ 



2nd experiment .. •• 45 M ^^tural state. 



Mean 0-46) 



This last (0-46) -would eventually produce 0-56 per cent, of ammonia. 

 The ammonia actually existing as such in the manure was found to be 

 •02 p)er cent. 



The following will be the ingredients of 100 parts of the manure : — 



Water 72-330 



Organic matter 21-800 



Silica 1-637 



Phosphoric acid -299 



Siilphuric acid -065 



Lime "845 



Magnesia -140 



Peroxide of iron and alumina .. .. -458 



Potash -692 



Soda -120 



Chloride of ijotassium Kone. 



Chloride of sodium -224 



Sand and clay .. .. 1-279 



Carbonic acid -055 



99-944 



Nitrogen in the original matter,. .. -460 

 Equal to amrrto?a'a -560 



The sand and day, although in large proportion in the ash, only exist to 

 the extent of Ij per cent, in the manure itself. The way in which this im- 

 purity is introduced wU need no explanation. 



A striking fact is the small proportion of ready-formed ammonia in the 

 manure, only two pjarts of 56 being in that condition. This circumstance may 

 be taken as conclusive evidence of the very small extent to which fermentation 

 of the material proceeds in well-constructed boxes. 



