It is needless to say that there are thousands of minds in the world possessed of good native power, but laboring under serious disability for the want of that culture which science alone can bestow. Some of these are sick with morbid longings for unattainable knowledge, and openly or secretly rebellious at the limitations of a Nature whose powers they have never even begun to explore. To such persons anything like an adequate insight into the harmony amid diversity of Nature's laws would come with all the force of a revelation, and would, we may well believe, clear their minds of the feverish fancies which have made them so restless and dissatisfied; but, alas! it is rarely that such enlightenment comes to those who have not in youth imbibed a portion of the scientific spirit. In this class are to be found the victims of spiritualism, of the Keeley motor, and even of that grotesque satire, the success of which we remember almost with fear and trembling, the "sympsychograph." Still, to all such we would say: "Come forth into the light of things; Let Nature be your teacher." The "Nature" which we require to teach us for the peace and tranquillity of our souls is the Nature of everyday phenomena, the Nature that forms the clouds and rounds the raindrops, that springs in the grass and pulses in the tides, that glances in the sunbeam and breathes in the flower, that works witchery in the crystal and breaks into glory in the sunset. The mind that knows what can be known of these things has feasted full of wonder and beauty, and makes no greedy demand for higher grace or mightier miracle.