f 206 ] 



d. A water wheel, into the cavities of 



which the water falls out of the 

 trough b. 



e. A wooden cylinder, to which the 



ropes are fattened ; turned by the 

 above water wheel, which winds the 

 ropes round it. 

 ff. The ropes which are faftened at top 

 to the crane. 



The thirty jets were planted on a bed four feet 

 wide, and at two feet one half diftant from each 

 other. They were kept clean from weeds, and as 

 the plants grew, the italks were laid down, and 

 frefh earth trenched over them. 



N. B. A very trifling quantity of dung was 

 ufed in preparing the ground. 



On the 1 ith of this inft. Nov. Ifaiv them ta- 

 ken up, and exactly weighed^ and the produce of 

 the firft was 222 lb. of the fecond 364.1b. My 

 gardener afterwards counted them, and found the 

 firft number 700, and the fecond 1100. 



Is not this a mod amazing increafe ? The a- 

 bove is an exact and molt faithful account ; I 

 can atteft its veracity, for I was myfelf an eye- 

 witnefs, and aflilled both in the planting and ta- 

 king up the potatoes. From this plain narra- 

 tive of facts, you, Sir, (and others, who, like 

 you, devote their learning and leifure to the im- 

 provement of ufcful arts,) will be induced, by a 

 courfe of accurate experiments, to difcover with 

 greater precifion, the peculiar excellencies of this 

 potatoe, (which, I think, ought to be called the 

 Howard Potatoe.) 



You will probably plant it on wet, ftirF, and 

 clayey foils, in light, faady, and gravelly land, 



with 



