G8 MODERN HIGH FARMING. 



Moisture .* 12.36 



Water of combination 4.13 



*Phos-i>horic Acid 30.22 



Lim3 4.10 



Magnesia Trace*. 



Oxide of Iron 7.04 



Alumina 24.00 



Carbonic Acid None. 



Sulphuric Acid 1 " 



Fluorine Traces. 



Insoluble Sandy Matter 18.09 



100.00 

 *Equal to 65.87 per cent, of tribasic phosphate of lime. 



It would be well if our chemical brethren would remember 

 that as we have already described in these pages, phosphates are in- 

 variably found in our vegetable soils, as phosphates of peroxide of 

 iron and alumina, and that, although some difficulty may attend 

 their decomposition in the factory, or their transformation into 

 chemical manures, they would be extremely valuable in the raw 

 state if very finely ground as a direct manure. 



The fact, however, of an abundance of phosphate of lime being 

 always obtainable at very reasonable prices, has interfered with a 

 general popularization of the facts, and it is only in the event of an 

 increased demand, or a momentary decrease in ordinary sources of 

 supply, that our prejudiced friends will suddenly discover in these 

 phosphates a very valuable reserve to fall back upon. 



