14 Liquid Manure. 



Organic matter and a little water of combination . . 5'36 



Oxides of iron and alumina .. 5'70 



Carbonate of lime '25 



Alkalies and magnesia "49 



Phosphoric acid a mere trace. 



Sulphuric acid -08 



Soluble silica 1-01 



Insoluble siliceous matter (sand) 87*11 



100-00 



We have here a soil which hardly contains any lime, and such 

 minute traces of phosphoric acid, that this constituent could not 

 be determined quantitatively. 



The sand obtained by washing had a deep red colour, and con- 

 tained a good deal of oxide of iron. 



The composition of this soil fully explains the extremely infertile 

 character of the land, and its avidity to swallow up manure with- 

 out exhibiting any corresponding effect on the produce. 



A portion of the soil, sufficient for the purpose of ascertaining 

 the changes which liquid manure undergoes in contact with the 

 soil, was mixed with this liquid, and the experiment carried out 

 in all particulars precisely in the same manner as in the two 

 preceding cases. 



The following results were obtained : 



General composition of Liquid Manure left in contact for 24 hours with 

 Sandy Soil. 



1 imperial gallon contained : 



Grains. 



* Water and volatile ammonia compounds 69,892*41 



t Organic matters 25*06 I iA7.cn 



Inorganic matters (ash) .. .. 82*53 / 



70,000*00 



* Containing ammonia 3315 



f Containing nitrogen .. .. 1'40 



Equal to ammonia 1*70 



The mineral portion, or the ash of filtered liquid manure con- 

 tained in 100 parts 



Soluble silica 6-19 



Insoluble siliceous matter 1*69 



Oxide of iron 2-52 



Lime 9*73 



Magnesia '90 



Potash 14-55 



Soda -55 



Chloride of sodium 47*56 



Phosphoric acid 2*33 



Sulphuric acid 4-45 



Carbonic acid and loss .. 9"53 



100-00 



