Now maternity, in the true and full sense of the word, is something which was not realized until a comparatively recent stage of the earth's history. God's highest work is never perfected save in the fulness of time. For countless ages there were parents and offspring before the slow but never aimless or wanton cosmic process had brought into existence the conscious personal relationship between mother and child. Protection of eggs and larvæ scarcely suffices for the evolution of true maternity; the relation of moth to caterpillar is certainly very far from being a prototype of it. What spectacle could be more dreary than that of the Jurassic period, with its lords of creation, the oviparous dinosaurs, crawling or bounding over the land, splashing amid the mighty waters, whizzing bat-like through the air, horrible brutes innumerable, with bulky bodies and tiny brains, clumsy, coarse in fibre, and cold-blooded. "Dragons of the prime, That tare each other in their slime." The remnants of that far-off dismal age have been left behind in great abundance, and from them we can easily reconstruct the loathsome picture of a world of dominating egoism, whose redemption through the evolution of true maternity had not yet effectively begun. For such a world might Caliban's theology indeed seem fitted. Nearly nine tenths of our planet's past life-history, measured in duration, had passed away without achieving any higher result than this,--a fact which for impatient reformers may have in it some crumbs of consolation.