ematician having to solve an equation, both sides of which were entirely made up of unknown quantities--where would he be? Happily this is not the case. The Law is ONE throughout, and the apparent variety of its working results from the infinite variety of the conditions under which it may work. Let us lay a foundation, then, by seeing how it works in what we call the common course of Nature. A few examples will suffice.
Hardly more than a generation ago it was supposed that the analysis of matter could not be carried further than its reduction to some seventy primary chemical elements, which in various combinations produced all material substances; but there was no explanation how all these different elements came into existence. Each appeared to be an original creation, and there was no accounting for them. But now-a-days, as the rustic physician says in Molière's play of the "Médecin Malgré Lui," "nous avons changé tout cela." Modern science has shown conclusively that ev