In order to secure this surplus-profit can only develop as exchange-values, be replaceable.

£ R( c o nt CM Rate of Interest. Natural Rate of Sur¬ plus-Profit c a CM A i 21/14-21/a=5 1 6 6 I1/, 9 2 8 1+7 C 1 2‘/2+2V2=5 1 G 4 3 9 6 240% D 1 l1/* 9 2 3 00% D 1 2V* ** V, V 4 4 years of age may work.