APPENDIX. 



237 



\f the annual produce of hay be estimated on the average at 400 kilo- 

 grammes per hectare, then along with it there must be removed in the 

 crop, from the same surface, 244 kilogrammes of ashes, consisting of - 



Kilogrammes. 

 Carbonic acid . . . .17*8 



Phosphoric acid . . . 13*2 



Sulphuric acid . . . .66 



Chlorine .... 6*3 



Lime ..... 43'7 



Magnesia .... 17*6 



Potash and Soda .... 57*3 

 Silica ..... 76-9 



Oxide of iron . . . . 4*6 



2440 



(Boussingault, Economie Rurale, pp. 339 — 340.) 



COMPOSITION OF A STABLE MANURE. 



ACCORDING TO THE ANALYSIS OF RICHARDSON 



The fresh Manure contained : 



Water . . . . .64*96 



Organic matters . . . 24'71 



Ashes ..... 10-33 



10000 



