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his led me to ftudy the particular nature 

 of this grafs, more than I fliould other- 

 wife have done. And I am of opinion, 

 that almoft all land is impregnated with 

 its feed, and will of courfe produce it, 

 though not in equal quantities. So that 

 it does not feem necefTary to fow it, but 

 merely to encourage its growth. When 

 the furface lies hollow, other grafles, of a 

 coarfer nature, and poiTefTed of deeper 

 roots, get the better of it, and are apt to 

 ftifle it. But when the fame land be- 

 comes trodden, this grafs immediately 

 {hews itfelf ; and if the prefTure be fre- 

 quently repeated, it very foon gets the ad- 

 vantage over mofl: others, as may be {ecn 

 at the entrance, and outfides, of moil 

 fields, where the feet of cattle give it, as 

 it were, a new birth. So that as prefTure 

 alone docs the bufmefs, it feems a great 

 argument in favour of feafonable rolling, 



which 



