Farmyard Manure. 



Soluble silica ... 25-35 



Insoluble silica 14-40 



Oxide of iron and alumina, with phosphates .. 15-20 



Containing phosphoric acid (4 '00) 



Equal to bone earth (8'66) 



Lime 25*01 



Magnesia T05 



Potash .. .. ;. ;. 2'73 



Soda :;" .. .. .. -51 



Sulphuric acid .. .. 1*32 



Carbonic acid and loss .. .. .. 14-43 



100-00 



Taking into account the relative proportions in which the 

 soluble mineral matters are mixed with the insoluble in this 

 manure, the composition of the whole ash left, on burning of the 

 manure, has been calculated. 



Composition of whole Ash, produced ly tiie same Manure. 



f Soluble silica 2-50 



^j Phosphate of lime .. 3-45 



Lime .. .. ., ., .. .. .. '58 



Magnesia .. .. .. .. '04 



Potash 7-05 



-o Soda .. .. .. .. ... 2-03 



Chloride of sodium .. .. -61 



Sulphuricacid .. 1-25 



Carbonic acid and loss 4*59 



Arranged together. 



Soluble silica 19-74 2224 



Insoluble silica 11-21 11-21 



Phosphate of lime 3'45 



. + Oxide of iron and alumina, with phosphates 11-84 11-84 



Sg Containing phosphoric acid .. .. .. (3'11) (3*11) 



Equal to bone earth .. (6-74) (6-74) 



-sHLime .19-48 20'06 



Magnesia "82 -86 



Potash .. .. 2-12 9-17 



Soda -39 2-42 



Chloride of sodium -61 



Sulphuricacid T02 2-27 



I Carbonic acid and loss 11-28 15-87 



100-00 100-00 



On comparing these results with the analyses of the fresh 

 manure of November, 1854, it will be found that the manure 

 kept under the shed for 3 months and .11 days has suffered very 

 little change both as regards organic and mineral constituents. 

 It will be perceived that the proportion of soluble compounds has 

 very little increased in the course of this time, and that the per- 

 centage of. nitrogen in the manure, practically speaking, has 

 remained unaltered. Thus comparing the composition of the dry 

 manure of February with that of the fresh of November, it will 



