PHYSICAL AND LITERARY. 6i 



though the foil Ihould allow them to go 

 down any length ; for th.;t, by plough- 

 ing deep, they would turn down, and 

 hide from the influence of the weather, 

 the furface and bed part of the foil, in- 

 riched with the roots of plants, 8cc. 



That, by repeated experiments, they 

 fotind, that ten cart load of dung or 

 marie will go as far in improving an 

 acre of land, when only ploughed three 

 inches, as twenty would doof the fame 

 manure, if they ploughed fix inches ; and 

 fo in proportion ; and that, by the fame 

 rule, manure may be carried to advan- 

 tage double or triple the diftance. 



That as the work is lighter, fewer cat- 

 tle and fervants are neceflary to cany 

 on their hufbandry. 



That land ploughed fliallow is much 

 eafier cleaned of weeds, as their roots 

 are with lefs trouble expofed to the fun 

 and wind, and the feeds of annuals 

 brought nearer the furface, and by that 

 means encouraged to vegetate, which is 

 neceffary before they can be rooted out 

 and dellrpyed» 



Should 



