granting that life--animal and vegetable, of many forms--existed in the Oolitic and Liassic ages, he might ask whether the presence in the planet of at least four unique orders of reptilia, to wit; Ichthyosauria, Plesiosauria, Pterosauria, Dinosauria, and perhaps, as Professor Huxley says, 'another or two,' was not the circumstance which a geologist would select as distinctive, and if so, whether the coincidence between these and the creeping things and great sea-monsters of the fifth Mosaic day is not striking. As we formerly remarked, Miller's geological interpretation of the fifth and succeeding day is independent of any theory as to the originally molten state of the planet. On the sixth day-period, both in Genesis and in the geological history of the world, we have a great development of mammalian life, and, finally, the appearance of man. There was a Tertiary flora, but it was not strongly marked off from other floras; there were Tertiary reptiles, but their place was subordinate; in respect of their beasts of the field, and in respect of the presence of man, the Tertiary ages stand alone. The mammoths and mastodons, the rhinoceri and hippopotami, 'the enormous dinotherium and colossal megatherium,' elephants whose bones, preserved in Siberian ice, have furnished 'ivory quarries,' unexhausted by the working of upwards of a hundred years, tigers as large again as the largest Asiatic species, distinguish the Tertiary times from all others known to the geologist. In stating his views, Miller availed himself of the hypothesis, put forward by Kurtz and others, that the phenomena of the geological ages passed before the eyes of Moses by way of panoramic vision. This, we need hardly say, is a pure hypothesis, favourable to pictorial description, but not essentially connected with the logic of the question. Perhaps, the weakest point in Miller's theory--always presuming him to be right as to the originally molten state of the planet--is the apportionment of the present time to the seventh Mosaic day and to the Sabbatic rest of the Creator. Geologists would now, with one voice, refuse to admit that any essential alteration can be traced in the processes by which the face of the earth, and the character of its living creatures, are modified in the present geological epoch, as compared with those of, at least, the two or three preceding epochs. Man, doubtless, effects changes in the aspect of the world on a far greater scale than any other animal. He can reclaim wide regions from the sea, he can arrest the rains far up in the mountains, and lead them to water his terraces, he can temper climates, he can people continents with new animals and plants. It is allowable in Goethe, talking poetically, to style him 'the little god of earth.' But his entire activity, and its results, depend not upon a suspension of the laws and processes of nature--not upon a withdrawal of creative energy--but upon his