$30 ()u Liquid Manure. 



Seven thousand grains evaporated to dryness with the addition 

 oi hydrochloric acid gave a residue that produced on burning 

 with soda-lime 2296 grains of ammonia. 



The residue from another 7000 grains evaporated without acid 

 only yielded SOo of nitrogen. 



The following is the composition of the solid substances in this 

 sample of liquid manure : — 



Organic matters 38'94 



•' Containing 2*504 of nitrogen. 



Whieh is equal to 3 040 of ammonia. 



* Inorganic matters (ash) 61"06 



100-00 

 * Consisting of— 



Silica -95 



Lime 10-75 



Magnesia 1 37 



Chloride of sodium 14' 25 



Chloride of potassium 6*36 



Potash 11 '08 



Phosphoric acid 1'91 



Sulphuric acid 2-81 



Carbonic acid and loss 11*58 



According to these analytical data the liquid manure drawn 

 in 1857 from the tank on the College farm, Cirencester, had the 

 following composition; — 



An imperial gallon contained; — 



Water and volatile animoniacal compounds .. 69878-900 

 Solid residue (dried at 212°) matter 121-100 



70000-000 

 A gallon contained : — 



Ammonia (volatilized on heatins;, and present chiefly"* r,r>.acA. 



as carbonate and humate of ammonia j — ^ 



Organic matters 47-157 



Containing 3-033 of nitrogen. 

 Equal to 3 •083 of ammouia. 



Mineral matters (aii^li) 73-943 



Consisting of — 



Silica 1-154 



Lime 13-011 



MaG;nesia .. .. .. •....■.. .. ' .. .. l-(i60 



Potash .. .. .. .. .. .. 13-411 



Chloride of potassium .. .. 7*712 



Chloride of sodium .. .. ' 17-258 



Plioshoric acid 2-304 



Sulphuric acid .. .. .. .. 3-408 



Carbonic acid and loss . . . . 14-025 



144-064 



There is a very marked difference in the composition of this 



