N.B.--With respect to "The Templars' Dialogues," it may possibly be complained, that this paper is in some measure a fragment. My answer is, that, although fragmentary in relation to the entire _system_ of Ricardo, and that previous _system_ which he opposed, it is no fragment in relation to the radical _principle_ concerned in those systems. The conflicting systems are brought under review simply at the _locus_ of collision: just as the reader may have seen the chemical theory of Dr. Priestley, and the counter-theory of his anti- phlogistic opponents, stated within the limits of a single page. If the principle relied on by either party can be shown to lead into inextricable self-contradiction, _that_ is enough. So much is accomplished in that case as was proposed from the beginning--namely, not to exhaust the _positive_ elements of this system or that, but simply to settle the central logic of their several polemics; to settle, in fact, not the matter of what is evolved, but simply the principle of evolution.