319.] [Footnote 11: This could not be treated in connection with the interest-rate in Vol.

I, Part IV, for the reason that even its elementary treatment must presuppose the fuller study of the nature of money and the study of changes in the level of prices, that has just been given in this and the three preceding chapters.

The theory of interest in Vol.

I, therefore, is a static theory in respect to the standard of deferred payments, and requires adjustment to apply to a condition of a changing price-level.] [Footnote 12: See above, sec.

3.] [Footnote 13: Mention was made in Vol.