28 



Farmyard Manure. 



Composition of whole Ash of Fresh Farmyard Manure (No. I.), Exposed. 

 'Soluble silica .. .. .... .. .. 3*55 



3^ Phosphate of lime 3*82 



1 Lime .... ...... .. ...... *62 



agnesia *25 



Potash 13*93 



Soda .. .. .. 2*38 



. Chloride of sodium .. .. ..... .. 1'35 



Jo* Sulphuric acid ... ... 2*04 



Carbonic acid .. .. .. 9'80 



Arranged together. 

 Soluble silica .. .. ... .... .... ... 9*06 12*61 



Insoluble silica .. .. 10*89 10'89 



Phosphate of lime 3-82 



Oxide of iron and alumina, with phosphates 10*30 10*30 



Containing phosphoric acid (2*26) (2-26) 



Equal to bone earth (3*52) (3-52) 



Lime 16*41 17*03 



Magnesia *37 '62 



Potash .. 1-62 15-55 



fl - Soda .. .. .. .. -59 2-97 



Chloride of sodium 1*35 



Sulphuric acid 1*27 3*31 



Carbonic acid 11*75 21*55 



100*00 100-00 



A comparison of these analytical results with the analysis 

 which was made of the fresh manure, on the 3rd of November, 

 1854, will show : 



1. That there is more water in the manure on the 14th of 

 February, 1855. 



2. That, notwithstanding the larger proportion of water, the 

 soluble organic and mineral matters have become more abundant, 

 whilst the insoluble organic matters have become diminished in 

 quantity. 



Thus, in November, the manure contained 2 '48 per cent, of 

 soluble organic matter, and T54 mineral substances ; and in 

 February, 3'86 per cent, organic and 2*97 mineral substances; 

 whilst the proportion of insoluble organic matters in November 

 amounts to 25'76 per cent, and in February to only 18'44 

 per cent. 



These differences are still more striking, if we make the com- 

 parison with the perfectly dry manure. It will then be found 

 that the manure contained : 



Nov. 3,1854., Feb. 14, 1855. 

 per Cent. per Cent. 



Soluble organic matters .. .. 7-33 12*79 



Soluble mineral matters . . . . 4-55 9-84 



Insoluble organic matter .. .. 76*15 61*12 



Insoluble mineral matters .. 11*97 16*25 



100*00 



100-00 



