AGRICULTURAL TEXT-BOOK. 193 



France it is cultivated extensively for forage, and enters into 

 the regular rotations of the fields. It is attracting much at 

 tention at present in England. It will withstand the severest 

 cold, and bear drought well, its large leaves covering the ground, 

 and the root striking deep into it. It comes very early in tha 

 spring, and may be cut for soiling several times in the year. Ifc 

 is a perennial with very ornamental blue blossoms. 



428. Comparative analysis of the dry root (A,) and fresh root (B,) 

 of Chiccory. (Dr. Anderson.) 



A. B. 



Water, 18.01 - - 80.58 



Ash, on dry, - 3.64 - 6.77 



Nitrogen, on dry, - 1.60 - - 1.48 



Ash on moist substance, - * 1.31 



429. Inorganic analysis. (Ibid.) 



Silica, * 3.790 - 0.99 



Peroxide of iron, - - 0.657 - 0.81 



Lime, - 8.644 - 6.09 



Magnesia, - V 5.777 3.15 



Sulphuric acid, - 13.048 - - 4.80 



Phosphoric acid, 13.882 - 10.02 



Potash, - 29.687 - - 42.60 



Chloride of potassium, - - 1.78 



Soda, - - 7.641 - 



Chloride of sodium, * 2.555 - 6.83 



Sand, - 3.271 -1.12 



Charcoal, - - 2.567 -, 9.90 



Carbonic acid, y 7.927 - - 11.40 

 It seems from the abore that the plant has great powers of appro- 

 priation or replacement of constituents. It probably is able to replace 

 the potash with soda. 



430. Where this plant is grown for the sake of the root the 

 following is the English mode of cultivation. The autumn 

 previous to sowing, the land must be manured and deeply 

 plowed, and if it be dry and porous, the best for this crop 

 harrowed before winter. About the second week in May, the 

 soil is ridged up so as to deepen it, and facilitate subsequent 

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