602 Cultivation of Arable Land.—Potatoes.

As cattle potatoes, the or noble and the clu/ter are the varieties principally cultivated, as they are both large in fize and very produétive.

The white and apple forts are however moft proper for being made ufe of in the early part of the feafon. And the pink-eyes and copper-plates are of a hardy nature, and probably capable of being grown with lefs perfect culture than moft of the other varieties. But though a number of trials have been made in order to determine the differences in the produdtivenefs of the different varieties, yet from the effets which the differences of foil, climate, culture, and other caufes produce, the matter has not been decided with much corre€tnefs*. The royal or Cumberland early is very productive and of a large fize, with a good flavour, and befides, it ripens early.

The foil in which this root is capable of being produced to the greateft ad- vantage isa rich loam of the light fandy kind, that poffeffes a medium degree of moifture. They may, howeyer, be grown with fuccefs on lands that are

* The produéts in the experiments of Mr. Young, with the three following forts, under the fame management, in the drill method, were thefe:

Kinds. Produce. Clufter‘.:°: 360 buthels. Red-nofed kidney.-:‘ 144 Golden tags. 2‘ 5: 207 And the refults of Mr. Baker’s trials in Ireland, in comparing different forts, are thus ftated: Sorts. Produce. Commonwife é>:$ a1 lb. 6 oz. Apple:. Q c 5 Zoe, Red French 5::: 12 Munfter white 6:;. 16 0 Cronés°< 5; a 16 66 Spanifh.:::: 15 0 On repeating the experiment, the refult was: Sorts. Produce. Black é:‘:‘ 111 barrels per acre. Quakerwife F P 3 js 108 Red French‘. c°° 88 White ditto j j:‘ 85 Commonwife j:°° 103 Apple°. F.. 76 Englith whice,‘; F 83 White Munfter‘‘ s 79 Spanifh-°<°; 70

Crones F? P. C 60