96 Cull hat ion of Arabic Land. Potatoes. Sets proper for. 



like wife been fuggefted, that the potatoes intended for feed mould be raifed with 

 out manure in fuch foils as are of the fertile kind ; and on thofe that are of a poor 

 quality, by a lefs proportion than is ufually the cafe, and without fo much earth 

 ing up in the after-culture of the crop, as, by. fuch means, it is fuppofed there may 

 be lefs danger of the crops becoming affected by difeafe.* In the fame intention, 

 it has been recommended by different cultivators to change the feed every two 

 years, carefully collecting fuch as is brought from a confiderable diftance. It 

 \vould feem probable, however, that, in guarding againft accidents of this kind, 

 much depends upon the ground being well prepared for the reception of the crop, 

 and on the after-culture being perfectly performed. 



In refpect to the feed or fets, different modes have been advifed by different- 

 cultivators, fome preferring whole potatoes, or large cuttings, while others think 

 fmall cuttings, fprouts, or even the eyes, the moft beneficial. All thefe different 

 forts of fets are, indeed, found in practice to produce good crops ; though it feems 

 probable, from the various experiments that have been made upon the fubject, that 

 the middle-fized whole potatoes, and the large cuttings of large ones, are in ge 

 neral more productive than either the fmaller fort of whole potatoes, fmall cuttings, 

 or the eyes or moots alone. f 



* Corre&ed Report of Middlefex, and Tran factions of the Society of Arts, &c. 



f The refults of the experiments made by the Rev. Mr. Campbell, as ftated in the Bath Papers in 

 order to ascertain the fuperiority of the different kinds of fets, and the moft proper diftance of plant 

 ing in refpedt to the rows, are thefe : 



Indies distant Value of produce per 



Rows. in rows. acre, seed deducted. 



. s. d. 



EXPERIMENTS IN 17^0. 1. Small whole potatoes - - 6 - 16 6 7 



2. Large pieces 3 15 iff 6 



3. Large pieces - 6 15 8 6 



4. Large pieces - 12 J3 4 1 



EXPEIU MENTS IN 179l * Large whole 6-18 18 I 1 



2. Small whole - - 3 . IS 1 4^ 



3. Small whole - 6 - 17 ji 91. 



4. Small whole - - 12 17 3 6 



5. Small pieces - 6 - 16 1 5 r - 



ZXPERIMENTS IN 1792. 1. Small whole - - 6 . 19 7 1^ 



2. Large whole 6 1818 If 



3. Large whole . - 12 - 13 9 91 



4. Large pieces 6 18 3 

 5 Small whole - 12 - 18 1 3^ 



6. Large pieces . 12 .. 1696 



