At the 146th page of the edition of his 'Manual' previously quoted,
you will find it stated that the interest of money consists of three
distinct parts:
1. Reward for abstinence.
2. Compensation for the risk of loss.
3. Wages for the labour of superintendence.
I will reverse this order in examining the statements; for the only
real question is as to the first, and we had better at once clear
the other two away from it.