Note 148-1 — CHAPTER 1.

This is possible between labor and capital, at least in so far as a comparison can be instituted between the sacrifice of human rest there is in labor and the sacrifice of enjoyment in the building up of capital. But the person who introduces an entirely unimproved piece of land into the service of production, stands to the laborer as well as to the capitalist in a relation which is entirely incomparable with any other. (See § 156.) The doctrine of former agriculturists, that one-half of the harvest was to be ascribed to the soil and the other to the manure, would not suffice here, even if it were correct. Compare Fraas, Gesch. der Landbau- und Forstwissenschaft, 257. But in the production of a calf, the coöperation of a bull and cow are necessary. Yet no one is in condition to determine what portion of the calf is to be accounted as belonging to either. If the bull and cow belong to different owners, the relation of supply and demand, and the deeper causes that determine them, decide in what proportion the value of the calf is to be divided among them.