The cone of the oolitic Araucaria is hardly distinguishable from that of existing species.... Sub‐kingdoms of animals yield the same instances. The Globigerina of the Atlantic soundings is identical with the cretaceous species of the same genus ... the tabulate corals of the Silurian epoch are wonderfully like the millepores of our own seas.... The Arachnida, the highest group of which, the scorpions, is represented in the coal by a genus differing from its living congeners only in ... the eyes. [etc.] All of which may be closed with Dr. Carpenter’s authoritative statement about the Foraminifera: There is no evidence of any fundamental modification or advance in the foraminiferous type from the palæozoic period to the present time.... The foraminiferous fauna of our own series probably present a greater range of variety than existed at any previous period; but _there is no indication of any tendency to elevation towards a higher type_.(584) Now, as in the Foraminifera, Protozoa of the lowest type of life, mouthless and eyeless, there is no indication of change except their now greater variety—so man, who is on the uppermost rung of the ladder of being, indicates still less change, as we have seen; the skeleton of his palæolithic ancestor being even found superior in some respects to his present frame. Where is, then, the uniformity of law which is claimed—the _absolute rule_ for one species shading off into another and thus, by insensible gradations, into higher types? We see Sir William Thomson admitting as much as 400,000,000 years for the time since the surface of the Globe became sufficiently cool to permit of the presence of living things;(585) and during that enormous lapse of time in the Oolitic period alone, the so‐called “Age of Reptiles,” we find a most extraordinary variety and abundance of Saurian forms, the Amphibian type reaching _its highest development_. We learn of Ichthyosauri and Plesiosauri in the lakes and rivers, and of winged crocodiles or lizards flying in the air. After which, in the Tertiary period: We find the Mammalian type exhibiting remarkable divergences from previously existing forms ... Mastodons, Megatheriums, and other unwieldy denizens of the ancient forests and plains. And, subsequently, we are notified of: The gradual modification of one of the ramifications of the Quadrumanous order, into those beings from whom primeval Man himself may claim to have been evolved.(586)