410 



PHYSIOLOGY AT THE FARM. 



ASH. 



Total sulphur, . . . 0.058 



Sand and silica, ..... 



Potash, . . . . 



Soda, ..'.... 



Lime, ...... 



Magnesia, ...... 



Oxide of iron, ..... 



Chloride of sodium, .... 



Phosphoric acid, ..... 



Sulphuric acid, . . 



Carbonic acid. 



COMPOSITION OF MANGOLD TOPS. 



Organic matter, .... 

 Ash, .... 



ULTIMATE ELEMENTS. 



Carbon, . 

 Hydrogen, 

 Oxygen, . 

 Nitrogen, . 



Ammonia, 



2.6 



24.8 



13.8 

 2.0 

 2.1 

 0.6 



29.4 

 3.1 

 3.3 



18.3 



100.0 



80.2 

 19.8 



48.6 

 6.5 



39.2 

 5.7 



100.0 



6.90 



NO PROXIMATE PRINCIPLES GIVEN. 



ASH. 



Total sulphur, 

 Sand and silica, . 

 Potash, 

 Soda, 

 Lime, 

 Magnesia, . 

 Oxide of iron, 

 Chloride of sodium, 

 Phosphoric acid, . 

 Sulphuric acid, 

 Carbonic acid, 



0.502 



2.0 

 21.3 

 7.0 

 8.6 

 8.7 

 1.0 

 34.0 

 5.1 

 5.8 

 6.5 



100.0* 



* For further information on mangold- wurzel, see Stephens's 'Book of 

 the Farm,' vol. ii. p. 90-94. 



