Divine revelation carries us a step farther, and teaches us to recognise in Jesus of Nazareth God manifest in the flesh, the Divine Logos dwelling among men. But though this is a doctrine of revelation and not of science, it is in perfect harmony with the plan of progress which we have been sketching. It is the natural outcome of a process leading to the introduction of a rational and accountable being, understanding something of the works and ways of God, that to him God should reveal Himself, and that the Divine Logos, by whom were “constituted the ages”[94] of the world’s geological history, should preside also over its future consummation, when all the degradation that has sprung from the aberrations of fallen and imperfect humanity shall be removed, and man himself shall become fully a partaker of the Divine nature. The world we live in is thus not necessarily a finished world, and it is now marred by the sins of man. What it may be in the future, we can perhaps as little guess as an intelligence studying the Palæozoic world could have understood that of the present time. But it is a glorious truth to know that our Maker has revealed Himself to us also as a Saviour, and that as individuals we shall not perish, to be replaced by an improved species in the future, but that we ourselves, as sons of God, may enter into and possess the new earth and new heavens of future æons of the universe. Thus it would seem that the Gospel of Jesus Christ is that which was wanting to complete and justify the history of nature by bringing to light the final “restitution of all things,” and our own union to God in a happy immortality. FOOTNOTES: [1] Croll has elaborated this calculation in his work, _Climate and Time_. [2] Sept. 1879. [3] Analyses recently made by Mr. C. Hoffman, of the Geological Survey of Canada, show that beds of graphitic gneiss, some of them 8 feet in thickness, contain as much as 25·5 to 30 per cent. of carbon, the remaining earthy matter consisting principally of silica, alumina, and lime. The graphite from veins was nearly pure carbon, containing from 97·6 to 99·8 per cent. of that substance. [4] Sometimes separated as a distinct order under the name of _Radiolaria_. [5] _Loftusia Columbiana_, Dawson, from British Columbia, is the only Carboniferous species yet known. [6] See Nicholson in the _Memoirs_ of the Palæontographical Society. [7] _Archæospherinæ_ of the author. [8] _Eophyton Linnæanum_ (Torrell). [9] See Paper on “Footprints and Impressions of Animals,” _Am. Journal of Science_, 1873. [10] They probably belong to a large sponge named by Billings _Trichospongia sericea_. [11] _Amphispongia._ [12] _Geological Magazine_, May, 1878. [13] It is regarded as somewhat doubtful whether these are Hydroids or Bryozoa. [14] _Heliopora_, an Alcyonarian; _Pocillopora_, an Anthozoan. [15] _Haplophyllia_, _Guynia_, _Duncania_, of Pourtales. [16] _Palæchinus._