[ 133 1 



crop was not adually meafured, fomc may 

 poffihly imagine, that chance threw us vipon 

 particular good plants. Accident might poi- 

 fibly occafion fmall variations, but I am 

 confident not of any confequence : However 

 to give a ftriking allowance, let us fuppofe. 

 the crop at i lb. each, the product at i j-. 6^. 

 a bufhel, will then be 29/. bs. an'd at i s, 

 19/. 12. s. which are crops of fo large an 

 amount as cannot fail to prove the immenfe 

 confequence of this root. 



Befides this experiment, Mr. Turner has 

 this year another piece of ground in pota- 

 toes ; a very rich black loam well manured. 

 I dug up feveral of thefe plants, and with 

 great accuracy in chufmg and weighing; 

 and taking the average, found the medium 

 weight, per plant, to be 4 //'. 8 oz. They 

 were planted in beds 4 feet vvide, w^ith alleys 

 of two feet, and three rows on each bed ; 

 the plants 18 inches afunder, this gives 29 

 tons 3 cwi.per acre, or 1 166 bufliels, which 

 at I s, 6d. amount to 87/. 9 s. or at i s. to 

 58/. 6 J-. An immenfe producSt for a iingle 

 acre, and which confirms the notion not 

 uncommon near London of potatoes fome- 

 times yielding 1 00 /. an acre. If any huf- 

 bandman will be at great expence in 

 manuring, tilling, cleaning, &c. I appre- 

 hend there is no crop in the v;orld lb 

 profitable as potatoes ; 10/. laid out in dung 

 for one acre of land founds a vail expence ; 

 K 3 but 



