We find that while the price of production has fallen by one-half, i.e., from 60 shillings to 30 shillings per quarter, the total money rental has remained the same, namely = £18, and the grain-rent has correspondingly doubled from 6 to 12 qrs. Upon B the rent has disappeared; upon C the money-rent has risen by one-half in IVc, but has fallen by one-half in IVd; upon D in IVc, it has remained the same, = £9, and has risen from £9 to £15 in IVd. The production has risen from 10 to 34 qrs in IVc, and to 30 qrs in IVd; the profit from £2 to £5½ in IVc and to £4 in IVd. The total investment of capital has risen in the one case from £10 to £27½, and in the other from £10 to £22½; i.e., in both cases it has more than doubled. The rate of rent, that is, the rent calculated on the invested capital, is in all tables from IV to IVd everywhere the same for each kind of soil — which was already implied in the assumption that the rate of productivity for the two successive investments of capital remains the same for each soil type. But compared with Table I this rate has fallen, both for the average of all kinds of soil and for each one of them individually. In Table I it was = 180% on an average, whereas in IVc it = (18/27½) × 100 = 65 5/11% and in IVd it = (18/22½) × 100 = 80%. The average money-rent per acre has risen. Formerly, in Table I, its average was £4½ per acre from all four acres, whereas in IVc and IVd it is £6 per acre upon the three acres. Its average upon the rent-bearing land was formerly £6, whereas now it is £9 per acre. Hence the money-value of the rent per acre has risen and now represents twice as much grain as it did formerly; but the 12 qrs of grain-rent are now less than one-half of the total output of 34 and 30 [In the German 1894 edition this reads: 33 and 27. — Ed.] qrs respectively, whereas in Table I the 6 qrs represent 3/5 of the total output of 10 qrs. Consequently, although the rent as an aliquot part of the total output has fallen, and has also fallen when calculated on the invested capital, its money-value calculated per acre has risen, and still more its value as a product. If we take soil D in Table IVd, we find that the price of production corresponding to the capital outlay here = £15, of which £12½ is invested capital. The money-rent = £15. In Table I, for the same soil D, the price of production was = £3, the invested capital = £2½, and the money-rent = £9; that is, the latter was three times the price of production and almost four times the capital. In Table IVd, the money-rent for D, £15, is exactly equal to the price of production and larger than the capital by only 1/5. Nevertheless, the money-rent per acre is ⅔ larger, namely, £15 instead of £9. In Table I, the grain-rent of 3 qrs = ¾ of the total product of 4 qrs; in Table IVd it is 10 qrs, or one-half the total product (20 qrs) per acre of D. This shows that the money-value and grain value of the rent per acre may rise, although it constitutes a smaller aliquot part of the total yield and has fallen in proportion to the invested capital.