[ 339 ] 

 that ftate they are left till recovered. When 

 the \Veeds begni to rife, the fpaces between 

 tlie rows are horfe-hoed with a common 

 plough ; and thofc that come among the 

 plants cut up with fmall hand-hoes. They 

 are ploughed up about the middle oiOBobcr^ 

 dnd the produd: upon an average of feveral 

 years, 150 buihels/>i?r acre. Among other 

 fpots planted with potatoes, the following 

 Mr, Dalton attended particularly to. 



One rood upon limeftone land, plantedf 

 with four bufhels, in rows 18 inches afunder, 

 and one foot from plant to plant in the; 

 rows, well horfe and hand hoed, produced 

 70 bufhels ; that is, per acre, 280 bufhels. 



1764. 

 One acre upon the fame foil as the pre- 

 ceding experiment, and managed in the 

 fame manner, produced 260 bufliels. 

 1765. 

 Two acres upon the fame foil, planted, 

 tultivated and taken up as before, produced 

 each 280 bufhels. 



1766. 

 Two acres this year, managed in every 

 refped as before, produced 27c buihds/fr 

 acre. 



1767. 

 Three acres in rows three feet afunder, 

 and the plants one foot, horfe and hand hoed 

 Z 2 as 



