each sun, and planet, and satellite its size, and shape, and position, and motion, could not have summoned into being their constituent particles? On none whatever. We may not understand how they could be created, but we have no reason for thinking that they could not be created; and it is surely far easier and far more reasonable to believe that they were created, than that a countless number of inconceivably small indivisible particles of matter, lying far beyond the range of any of our senses, but extending through immeasurable fields of space, should all, inconceivably minute although they be, be self-existent and eternal. The man who asks us to accept the latter supposition, asks us, it seems to me, to believe what is not only as mysterious as the self-existence of Deity, but millions of millions of times more mysterious. I should require strong reasons for assigning infinitely great attributes to excessively little things, and to an inconceivable number of them; but I can in this instance find no reasons at all. Then, in the third place, any plausible conceptions we can form of the ultimate nature of matter lead to the belief that even that is an event or effect, a something derivative and caused. It must be admitted that the most plausible of these conceptions are vague and conjectural. We have a practical and relative knowledge of matter which is both exact and trustworthy,--a knowledge of its properties from which we can mathematically deduce a multitude of remote consequences of an extremely precise character--but we are hardly entitled to characterise as knowledge at all any of the views which have been propounded as to what it is in itself. It is only the unreflecting who fancy that matter in itself is something very clear and obvious, which they may apprehend by merely opening their eyes and stretching out their hands. Those who have never reasoned on the subject are apt to imagine that the nature of matter is of all things the easiest to understand, and they unhesitatingly invest it with their own sensations and perceptions. That is the so-called commonsense view of matter; but the slightest inquiry proves it to be delusive and nonsensical. Colour, for example, is just what is seen, and sound just what is heard; they are not qualities inherent in objects independent of the eye and ear: the matter which is supposed to cause by its motions on our senses these and other perceptions of the material world, we cannot see, hear, or apprehend by any sense. Change our senses and the universe will be thereby changed, everything in it becoming something other than it was before, green perhaps red, the bitter sweet, the loudest noise a gentle whisper, the hardest substance soft. As soon, then, as we thoughtfully ask ourselves, What is matter? we begin to discover that it is in itself something utterly mysterious. The collection of phenomena which we call its properties are quite unlike the phenomena of mind in this