More years. The wear and tear.

513. See also Method of Marxist political econ¬ omy— 18-19, 22, 26-29, 30, 43, 49, 51, 54-55, 80-81, 86, 145, 345, 529-30, 558, 631, 632, 664, 676- 77, 723-24 Asia— 140, 160, 315-16, 338 Athens ( ancient ) — 893, 894 Steuart, James (1712-1780) — 36, 113; — effect of machinery, and so long as the ratio of value in excess over these.