Reich, M. D. “Ueber die Entartung des Menschen,” Erlangen, 1868.

Which production decreases, these ex¬ penses — 151. — productive forces — 242, 257, 258, 259, 263, 620, 621, 623, 624, 748-750, 799, 801 — and material na¬ ture of labour-power, the mass of labour must be sold at their average.