156 AI A N U R E - P R O C E S S. 21.- 



cvcry farm, twenty ta thirty loads a-n acre are 

 generally allowed, — and fomctimes forty loads. 



When it is known, from experience, or 

 taken for granted without proof, that land, 

 either through a recent marling or other caufe, 

 is not improveable by marl alone, a fmall 

 quantity is frequently mixed up with dung ; 

 either by bottoming the farm-yard, or the 

 muck-hcapg, with it ^ or by mixing it layer 

 for layer with the dung in the heaps. In ei- 

 ther cafe, they are afterward turned up, and 

 thereby mixed more intimately together. — 

 With this preparation, marl has been founj 

 to anfwer, where, in its natural fiate, it had 

 no effefl. 



The fymptom, or indication, of a piece 

 of land requiring to be marled, is taken from 

 the plants which prevail upon it. — " Buddie'* 

 ij:hryfanthemum Jcgetum — corn-marigold) is con- 

 sidered as a certain intimation that the land 

 it abounds upon requires to be marled. 

 "Smart-weed" (pclygonum Pennfyhanicum — pale- 

 flowered perficaria) is likewife an obfervable 

 fymptom. It is, I believe, an undoubted facl, 

 that Ujarl, in a manner, extirpates thefe plants 

 from the foil ; — and that " quicks" (triiicum 

 refens) are confidcrably checked by it. 



With 



