18D
one pair of horses. On very stiff clays they seldom do so
For every pair of horses in this rotation, there are
In wheat
16-f acres.
In oats -
8*
In beans
8§
In clover and rye-grass
8*
In summer fallow
Si
50
but the land actually cultivated by the plough in any one yearis only 41|. acres, the 8-f in grass having been sown with thewheat after fallow, and requiring only that any small stonesshould be removed, that it be rolled for the scythe, and thecrop itself carted home; and even this labour is altogethersaved upon that part of the division in clover and rye-grass,which is generally pastured. In the Carse of Gowrie, every40 English acres require a pair of horses, and in East Lo-thian a pair of horses are considered equal by some to 52acres, and by others to 60 acres, kept under this rotation,43-f acres being in crop and fallow by the former calculation,and 50 acres by the latter.
2. Of turnip soils, sixty acres may be kept in cultivation byone pair of horses, under a rotation of 1. Turnips; 2. Wheat,barley, or oats; 3. Clover and rye-grass; 4. Wheat or oats,In this rotation for every two horses there are
In turnips,
-
15 acres.
In wheat, barley or oats,
30
In clover and rye-grass,
-
15
60
the land ploughed every year being 45 acres. There aremany instances where, with a little assistance from supernu-meraries in the turnip season, no less than 80 acres are keptUnder this rotation by one pair of horses, of which 40 areunder grain crops, and 20 under potatoes, turnips, and asmall proportion of summer fallow. But this is certainly