The theory of ground-rent is a special English economic matter, and this of necessity because only in England does a mode of production exist by which rent is separated from profit and interest. In England there prevail the greater landlordism and the greater agriculture. The individual landlords lease their lands in great farms to lessees who are able to cultivate them in a capitalistic fashion and do not, like our peasants, work with their own hands, but employ laborers just like capitalistic entrepreneurs. We have here then the three classes of bourgeois society, and the income which each receives--the private landlord in the form of ground-rent, the capitalist in that of profit and the laborer in the form of wages. No English economist has ever regarded the profit of the lessee as Herr Duehring does and still less would he have to explain that the profit of the lessee is what it indubitably is, profit on capital. In England there is no use to discuss this question for the question as well as its answer are obvious from the facts and, since the time of Adam Smith, there has been no doubt at all about it. The case in which the lessee cultivates his own land, as the rule in Germany, for the profit of the ground landlord does not make any difference in this respect. If the landlord cultivates the land for his own profit and furnishes the capital he puts the profit on capital in his pocket as well as the ground-rent for it cannot be otherwise under existing conditions. And if Herr Duehring thinks that rent is something different when the lessee cultivates the land for himself it is not so and only shows his ignorance of the matter. For example:--