tendency to the centre _is_ merely the tendency each to each, and not any tendency to a centre as such.—Thus it will be seen, also, that the establishment of my propositions would involve no _necessity_ of modification in the terms of the Newtonian definition of Gravity, which declares that each atom attracts each other atom and so forth, and declares this merely; but (always under the supposition that what I propose be, in the end, admitted) it seems clear that some error might occasionally be avoided, in the future processes of Science, were a more ample phraseology adopted:—for instance:—“Each atom tends to every other atom &c. with a force &c.: _the general result being a tendency of all, with a similar force, to a general centre_.” The reversal of our processes has thus brought us to an identical result; but, while in the one process _intuition_ was the starting-point, in the other it was the goal. In commencing the former journey I could only say that, with an irresistible intuition, I _felt_ Simplicity to have been the characteristic of the original action of God:—in ending the latter I can only declare that, with an irresistible intuition, I perceive Unity to have been the source of the observed phænomena of the Newtonian gravitation. Thus, according to the schools, I _prove_ nothing. So be it:—I design but to suggest—and to _convince_ through the suggestion. I am proudly aware that there exist many of the most profound and cautiously discriminative human intellects which cannot _help_ being abundantly content with my—suggestions. To these intellects—as to my own—there is no mathematical demonstration which _could_ bring the least additional _true proof_ of the great _Truth_ which I have advanced—_the truth of Original Unity as the source—as the principle of the Universal Phænomena_. For my part, I am not so sure that I speak and see—I am not so sure that my heart beats and that my soul lives:—of the rising of to-morrow’s sun—a probability that as yet lies in the Future—I do not pretend to be one thousandth part as sure—as I am of the irretrievably by-gone _Fact_ that All Things and All Thoughts of Things, with all their ineffable Multiplicity of Relation, sprang at once into being from the primordial and irrelative _One_. Referring to the Newtonian Gravity, Dr. Nichol, the eloquent author of “The Architecture of the Heavens,” says:—“In truth we have no reason to suppose this great Law, as now revealed, to be the ultimate or simplest, and therefore the universal and all-comprehensive, form of a great Ordinance. The mode in which its intensity diminishes with the element of distance, has not the aspect of an ultimate _principle_; which always assumes the simplicity and self-evidence of those axioms which constitute the basis of Geometry.”