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I have yet made no experiments to try if the crop be 

 fenfibly aftcclcd by planting the feeds deep or fhallow, and 

 by confequencc do not know what is the moft proper depth 

 to plant them at. This particular requires to be elu-. 

 cidated.] 



Although it appears, from the foregoing experi- 

 ments, that the weight of the crop was always 

 greateft where the feeds planted were the moft 

 weighty, yet it would be too rafh in us from thence 

 to infer that as great a crop could in no cafe be ob- 

 tained from the fame extent of ground, if it were 

 planted with fmall potatoes or fmall cuttings, as if 

 it were planted with large ones. For, as it is pro- 

 bable that the more bulky feeds would require a 

 greater fpace to nourifh them properly than fmall 

 ones; fo it is not impqffible, that if thefe fmall feeds 

 were planted at a proportionally fmaller diftance, 

 the crop might equal that obtained from the larger 

 ones. Though it does not feem probable that this 

 would be the cafe, and though it appears probable, 

 were it even fo, that the practice would be trourple- 

 fome and inconvenient, far beyond any benefit that 

 could refult from it; yet our firft bufinefs mould 

 be to afcertain how the matter of faft (lands, and 

 then enquire into the other circumftances depend- 

 ing on that fact. To do this in a proper manner, a 

 numerous fet of experiments would be required, 

 fomewhat upon the following plan. T , 



