A treatise? why, the subjects might, I own, excite some apprehension of the sort. But it will be found like sundry Greek Treatises among the tinder-rolls of Herculaneum, with titles of as large promise, somewhat largely and irregularly abbreviated in the process of unrolling. In fact, neither my purpose nor my limits permit more than a few hints, that may prepare the reader for some of the positions assumed in the second part of this volume.