. vT-.^^* • 'M'** Richardson's Analyses of Farm-Yard Manure. 



p,f(^See Boussingault's Economie Rurale.) The methods of ana- 

 lysis were those in general use. The manure was an average 

 sample, and taken just previous to its being applied to the 

 soil. 



Farm-Yard Manure. 



1. Fresh. 



Water 64*96 



Organic matter . . . 24*71 

 Inorganic salts, &c. . 10*33 100*00 



2. Dried at 212°. 



Carbon 37*40 



Hydrogen .... 5*27 



Oxygen 25*52 



Nitrogen 1*76 



Ashes 30*05 ^100*00 



3. Inorganic Matter. 



A. Portion Soluble in Water. 



Potash 3*22 



Soda 2*73 



Lime 0*34 



Magnesia .... 0'26 



Sulphuric acid . . . 3*27 



Chlorine 3*15 



Silica 0-04 13-01 



B. Portion partially Soluble in Muriatic Acid. 



Silica 27*01 



Phosphate of lime . 

 Phosphate of magnesia. 

 Phosphate of iron . 

 Phosphate of manganese 

 Phosphate of alumina 

 Carbonate of lime . 

 Carbonate of magnesia 



Sand 



Carbon .... 

 Alkali and loss . . 



7*11 

 2*26 

 4*68 

 trace 

 trace 

 9*34 

 1*63 

 30*99 

 •83 

 3*14 — -86*9 9 

 100*00 



The following analyses are of the coal-gas which is sup- 

 plied to the town of Newcastle- on- Tyne. It contained in 

 100 parts, — 



