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 For the rest, in respect to the phenomenal form, "value and price of labour," or "wages," as contrasted with the essential relation manifested therein, viz., the value and price of labour-power, the same difference holds that holds in respect to all phenomena and their hidden substratum. The former appear directly and spontaneously as current modes of thought; the latter must first be discovered by science. Classical political economy nearly touches the true relation of things, without, however, consciously formulating it. This it cannot so long as it sticks in its bourgeois skin.

themselves again take many forms, a fact not recognizable in the ordinary economical treatises which, exclusively interested in the material side of the question, neglect every difference of form. An exposition of all these forms however, belongs to the special study of wage-labour, not therefore to this work. Still the two fundamental forms must be briefly worked out here.

The sale of labour-power, as will be remembered, takes place for a definite period of time. The converted form under which the daily, weekly, &., value of labour-power presents itself, is hence that of time-wages, therefore day-wages, &c.

Next it is to be noted that the laws set forth, in the 17th chapter, on the changes in the relative magnitudes of price of labour-power and surplus-value, pass by a simple transformation of form, into laws of wages. Similarly the distinction between the exchange-value of labour-power, and the sum of the necessaries of life into which this value is converted, now reappears as the distinction between nominal and real wages. It would be useless to repeat here, with regard to the phenomenal form, what has been already worked out in the