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As every information^ founded on accurate experiments^ on 

 the cultivation of Potatoes^ is particularly valuable to the 

 piihlick ; the following., ivhich luas fent in after the lajl 

 fheet of the volume was fiiti/hci., is here inferted^ for the 

 early beneft of Potatoe Planters. 



Experhnejit on the Culture of Potatoes. 



[In a Letter to the Secretary.] 



Sir, 



I Send you an account of an experiment, which I have 

 made this year \\ ith a view to afcertain, as nearly as one 

 experiment well can do, the objecl of the Society's Premium 

 on the planting of potatoes. 



A piece of ground being prepared, rather more than an 

 acre, nearly of an uniform quality, and all unmanured; it 

 was divided into four equal parts : of which, one was ap- 

 propriated to fctts or cuttings^ in the ufual way; one to eyes 

 fcooped with an inftrument made for the purpofe ; one to 

 whole potatoes of a moderate fize, rather fmall than other- 

 wife; and one to Jhocts. 



An equal quantity Of potatoes was defined to each plot; 

 and I endeavoured to apportion the dillances in fuch a man- 

 ner as to crop the whole plot with the feed deftined for it. 

 In the firft three plots a few potatoes only were wanted tc 

 finifh each plot, rather the moft in that ot the cuttings or 

 fetts. For the fourth plot the given quantity was depofited 

 to produce /hoots, but they were by no means fufficient, as I 

 fhall explain hereafter. The diftances of the rows as follow ; 



Cuttings or Setts— about 2 feet diftant; in rows about 1 2 inches. 



Eyes - - about 18 in. diftant; in rows about 6 in. 



Whole Potatoes — about 2 \ feet diftant; in rows about 18 in. 

 Shoots - about 18 in. diftant; in rows about 9 in. 



All were hoed and treated in all refpeAs alike. In the 

 plots of whole potatoes, and cuttings, fomewhat more than 



there 



