The footprint of the savage traced in the sand is sufficient to attest the presence of man to the atheist who will not recognize God, whose hand is impressed upon the entire universe.

All geologic history is full of the beginning and the ends of species-of their first and last days; but it exhibits no genealogies of development.

Life itself is a school, and Nature always a fresh study.

But should we continue to linger amid a scene so featureless and wild, or venture adown some yawning opening into the abyss beneath, where all is fiery and yet dark,-a solitary hell, without suffering or sin,-we would do well to commit ourselves to the guidance of a living poet of the true faculty,-Thomas Aird and see with his eyes.

That special substance according to whose mass and degree of development all the creatures of this world take rank in the scale of creation, is not bone, but brain.

Poets need be in no degree jealous of the geologists. The stony science, with buried creations for its domains, and half an eternity charged with its annals, possesses its realms of dim and shadowy fields, in which troops of fancies already walk like disembodied ghosts in the old fields of Elysium, and which bid fair to be quite dark and uncertain enough for all the purposes of poesy for centuries to come.

The primary rocks, ... I regard as the deposits of a period in which the earth's crust had sufficiently cooled down to permit the existence of a sea, with the necessary denuding agencies,-waves and currents,-and, in consequence, of deposition also; but in which the internal heat acted so near the surface, that whatever was deposited came, matter of course, to be metamorphosed into semi-plutonic forms, that retained only the stratification.