Note 30 — Chapter I
Reading edition
Davenport, Value and Distribution, pp. 184, n., and 330-31, n.; Jevons, Theory of Political Economy, pp. 14, 78-84, esp. 83. Cf. Social Value, ch. 4. This seems to be the position of Professor R. B. Perry, also, though he is not so extreme as Davenport. Loc. cit.