532 On Liquid Manure. 



Specific gravity of liquid manure at 62° Fahr, == 1'0014. 

 7000 grains evaporated to dryness gave 11*186 grains of dry 

 residue, and this reduced to ashes in a platinum, capsule gave 

 9"127 grains of ash. 



We have thus in one imperial gallon : — 



Grains. 



Water and volatile compounds 69, 888* 14 



Orti;anic matters 20"59 



Mineral matters 91-27 



70,000-00 



Evaporated to dryness with hydrochloric acid a residue was 

 obtained which yielded on combustion with soda-lime SO'SO 

 grains of nitrogen calculated per gallon. The residue obtained 

 by evaporation without acid gave 149 grains of nitrogen per 

 gallon. 



The ash of tliis liquid manure contained in 100 parts : — 



Soluble silica 2-57 



Lime 12-58 



Magnesia 3-15 



Potash 18-54 



Chloride of potassium 3-01 



Chloride of sodium 44-21 



Pliosphoric acid 5*30 



iSulpliuric acid 4-32 



Carbonic acid and loss 0-32 



100-00 

 An unexpectedly large amount of chloride of sodium having 

 been found in this analysis, and rather less potash than I ex- 

 pected, 1 caused fresh determinations of chlorine and the alkalies 

 to be made. In the first chlorine determination I obtained 28-27 

 per cent, of chlorine in the ash ; in the second 27-90 per cent. 

 The second determinations of potash and soda likewise yielded 

 satisfactory results, for I obtained 18-63 of potash, ISl of 

 chloride of potassium, and 44-81 of chloride of sodium ; thus 

 proving that the ash of this liquid manure really contained the 

 amount of chloride of sodium and potash which is given in the 

 above analysis. 



The following numbers express the per cent, composition of 

 the solid matters : — 



* Organic matter 18-40 



Inorganic matter 81-60 



J 00 00 



* Containing nitrogen I'SS 



Consisting of — 



Soluble silica 2-09 



Lime 10-26 



