{ 492 ) 

 fuch a conduct, the danger of being drawn 

 into too great expences, and fuch as had 

 been quite unforefeen, is avoided. The uti- 

 lity of the trials, in every refped of accuracy , 

 truth, and authority, is infinitely greater ; 

 one genuine experiment being far more 

 valuable than twenty imperfed: ones. 



Fortunately it happens, that thofe trials 

 which require many men to be fet at work 

 at once, are fuch as I have already fhewn 

 to be beft executed in fmall \ fuch as all 

 comparative ones. Thofe which require 

 large fields, may be carried on in a pro- 

 greilive manner, like common hufbandry. 



If I might venture further to advife 



gentlemen, whofe fortunes are not confi- 

 derable enough to leave them at freedom 

 in all matters of agricultural expence, I 

 Ihould propofe fomething of the following 

 plan of an experimental field. 



See Plate VIII. The three long pieces 

 for experiments that require fomewhat 

 larger pieces of land than a fquare 

 perch. They may be applied to compa- 

 rifons betv/een the drill and the broad-caft 

 hufbandry in the culture of wheat, 

 barley, lucerne, cabbages, &:c. as fuch 

 trials require a length fufiicicnt for a 



plough 



