all the greater interest and curiosity await the solution of the problem he has set himself, namely, how something is to arise out of nothing, that is, how out of purely a priori conceptions, which contain nothing empirical or material, the laws of material human action are to grow up. This is a process which we may find symbolised in chemistry, where out of three invisible gases (Azote, Hydrogen, and Chlorine), and thus in apparently empty space, solid sal-ammoniac is evolved before our eyes.

I will, however, explain, more clearly than Kant either would or could, the method whereby he accomplishes this difficult task. The demonstration is all the more necessary because what he did appears to be seldom properly understood. Almost all Kant's disciples have fallen into the mistake of supposing that he presents his