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FERTILIZERS. 



In these formulas, all the phosphoric acid is to be avail- 

 able ; that is, either soluble or reverted, and mostly of the 

 former. It will be noticed that all these formulas are 

 complete fertilizers; that is, contain all of the three essen- 

 tial elements of plant-food. Let me again enjoin on my 

 fellow-farmers, when using a portion of them in the drill, 



