Htmam or FEKTILITT. 61 



wherever we discover such soils, whether in our own 

 western states, whether on the banks of the Nile or 

 Ganges, in whatever part of the world they may be 

 located, a chemical examination will invariably show 

 the presence of all the s - above named. It 



is not necessary that tht > be in precisely the 



quantities nametl here, but they must all be present. 

 The proportions of some of these may seem so small 

 as to be unimportant; that they are not, will ap- 

 pear when we consider how many hundred pounds 

 there are in an acre of soil twelve inches deep. The 

 smallest of the above proportions would, for an acre, 

 amount to several tons. It would require an im- 

 mensely heavy manuring to add one half of a per 

 cent of any particular ingre<lient to the soil. 



Unfortunately soils of the first class are not so 

 plenty as those of the second, which bear good crops 

 if an abundance of manure is added. Such are our 

 ordinary soils in all parts of the country. It will be 

 seen that in the column representing the composition 

 of this soil, there are blanks opposite to the potash, 

 soda, and chlorine, denoting that these are abcettt 

 Several others, sulphuric and phos])horic acids, and 

 lime, are in v\urh vtrnillir quantities tlian in tlw first 

 column. 



In the tliiMt rwimiiii, we find juat bdii im iin- inor- 

 ganic bodies present in th« first tfittfehr wanting, and 

 two others, lime and m "in 



their proportion. Anyoi ,re 



would not sup; It to toMke up all of theae 



deficiencies; arm , in places where nnx luce was 



high and manures cheap, as in the n< -od of 



large cities, such land could scarcely .-. .. .tp^j 



wiUj profit. We can tell just what is \' 'T 



inspection of the above t ' ' • - could 



afford to do everything r. ement 



Of such a Roil at once. The b«8t way would be to 

 € 



