ever. Each of these supposed 'ultimates' is now known to be the scene of indescribable activities, a complex piece of mechanism composed of thousands of parts, a star-cluster in miniature, subject to all kinds of dynamical vicissitudes, to perturbations, accelerations, internal friction, total or partial disruption. And to each is appointed a fixed term of existence. Sooner or later the balance of equilibrium is tilted, disturbance eventuates in overthrow; the tiny exquisite system finally breaks up. Of atoms, as of men, it may be said with truth 'Quisque suos patitur manes."
The discovery of radium was in itself sufficient to revolutionise the heretofore existing scientific theories and the revolution thereby effected has been enough to cause Sir William Crookes to say, "There has been a vivid new start, our physicists have remodelled their views as to the constitution of matter." In his address to the physicists at Berlin the same scientist said, "This fatal quality of atomic dissociation appears to be universal, and operates whenever we brush a piece of glass with silk; it works in the sunshine and raindrops in lightnings and flame; it prevails in the waterfall and the stormy sea" and a writer in the Edinburgh Review (December, 1903) remarks in this connection "Matter he (Sir William Crookes) consequently regards as doomed to destruction. Sooner or later it will have dissolved into the 'formless mist' of protyle and 'the hour hand of eternity will have completed one revolution.' The 'dissipation of energy' has then found its correlative in the 'dissolution of Matter'"
The scope of this revolution may only be gauged by the fact that one writer ("The Alchemy of the Sea," London "Outlook," Feb. 11, 1905; has ventured to say, and this is but one voice in a general chorus: "To-day
