I
The Summer Field, and what it tells us

There are few sights in Nature more restful to the soul than a daisied field in June. Whether it be at the dewy hour of sunrise, with blithe matin songs still echoing among the treetops, or while the luxuriant splendour of noontide fills the delicate tints of the early foliage with a pure glory of light, or in that more pensive time when long shadows are thrown eastward and the fresh breath of the sea is felt, or even under the solemn mantle of darkness, when all forms have faded from sight and the night air is musical with the murmurs of innumerable insects, amid all the varying moods through which the daily cycle runs, the abiding sense is of unalloyed happiness, the profound tranquillity of mind and heart that nothing ever brings save the contemplation of perfect beauty. One's thought is carried back for the moment to that morning of the world when God looked upon his work and saw that it was good. If in the infinite and eternal Creative Energy one might imagine some inherent impulse perpetually urging toward fresh creation, what could it be more likely to be than the divine contentment in giving objective existence to the boundless and subtle harmonies whereof our world is made? That it is a world of perfect harmony and unsullied beauty, who can doubt as he strolls through this summer field? As our thought plays lightly with its sights and sounds, there is nothing but gladness in the laugh of the bobolink; the thrush's tender note tells only of the sweet domestic companionship of the nest; creeping and winged things emerging from their grubs fill us with the sense of abounding life; and the myriad buttercups, hallowed with vague memories of June days in childhood, lose none of their charm in reminding us of the profound sympathy and mutual dependence in which the worlds of flowers and insects have grown up. The blades of waving grass, the fluttering leaves upon the lilac bush, appeal to us with rare fascination; for the green stuff that fills their cellular tissues, and the tissues of all green things that grow, is the world's great inimitable worker of wonders; its marvellous alchemy takes dead matter and breathes into it the breath of life. But for that magician chlorophyll, conjuring with sunbeams, such things as animal life and conscious intelligence would be impossible; there would be no problems of creation, nor philosopher to speculate upon them. Thus the delight that sense impression gives, as we wander among buttercups and daisies, becomes deepened into gratitude and veneration, till we quite understand how the rejuvenescence of Nature should in all ages have aroused men to acts of worship, and should call forth from modern masters of music, the most religious of the arts of expression, outbursts of sublimest song.

And yet we need but come a little closer to the facts to find them apparently telling us a very different story. The moment we penetrate below the superficial aspect of things the scene is changed. In the folklore of Ireland there is a widespread belief in a fairyland of eternal hope and brightness and youth situated a little way below the roots of the grass. From that land of Tir nan Og, as the peasants call it, the secret springs of life shoot forth their scions in this visible world, and thither a few favoured mortals have now and then found their way. It is into no blest country of Tir nan Og that our stern science leads us, but into a scene of ugliness and hatred, strife and massacre. Macaulay tells of the battlefield of Neerwinden, that the next summer after that frightful slaughter the whole countryside was densely covered with scarlet poppies, which people beheld with awe as a token of wrath in heaven over the deeds wrought on earth by human passions. Any summer field, though mantled in softest green, is the scene of butchery as wholesale as that of Neerwinden and far more ruthless. The life of its countless tiny denizens is one of unceasing toil, of crowding and jostling, where the weaker fall unpitied by the way, of starvation from hunger and cold, of robbery utterly shameless and murder utterly cruel. That green sward in taking possession of its territory has exterminated scores of flowering plants of the sort that human economics and æsthetics stigmatize as weeds; nor do the blades of the victorious army dwell side by side in amity, but in their eagerness to dally with the sunbeams thrust aside and supplant one another without the smallest compunction. Of the crawling insects and those that hum through the air, with the quaint snail, the burrowing worm, the bloated toad, scarce one in a hundred but succumbs to the buffets of adverse fortune before it has achieved maturity and left offspring to replace it. The early bird, who went forth in quest of the worm, was lucky if at the close of a day as full of strife and peril as ever knight-errant encountered, he did not himself serve as a meal for some giant foe in the gloaming. When we think of the hawk's talons buried in the breast of the wren, while the relentless beak tears the little wings from the quivering, bleeding body, our mood toward Nature is changed, and we feel like recoiling from a world in which such black injustice, such savage disregard for others, is part of the general scheme.

II
Seeming Wastefulness of the Cosmic Process

But as we look still further into the matter, our mood is changed once more. We find that this hideous hatred and strife, this wholesale famine and death, furnish the indispensable conditions for the evolution of higher and higher types of life. Nay more, but for the pitiless destruction of all individuals that fall short of a certain degree of fitness to the circumstances of life into which they are born, the type would inevitably degenerate, the life would become lower and meaner in kind. Increase in richness, variety, complexity of life is gained only by the selection of variations above or beyond a certain mean, and the prompt execution of a death sentence upon all the rest. The principle of natural selection is in one respect intensely Calvinistic; it elects the one and damns the ninety and nine. In these processes of Nature there is nothing that savours of communistic equality; but "to him that hath shall be given, and from him that hath not shall be taken away even that which he hath." Through this selection of a favoured few, a higher type of life—or at all events a type in which there is more life—is attained in many cases, but not always. Evolution and progress are not synonymous terms. The survival of the fittest is not always a survival of the best or of the most highly organized. The environment is sometimes such that increase of fitness means degeneration of type, and the animal and vegetable worlds show many instances of degeneration. One brilliant instance is that which has preserved the clue to the remote ancestry of the vertebrate type. The molluscoid ascidian, rooted polyp-like on the sea beach in shallow water, has an embryonic history which shows that its ancestors had once seen better days, when they darted to and fro, fishlike, through the waves, with the prophecy of a vertebrate skeleton within them. This is a case of marked degeneration. More often survival of the fittest simply preserves the type unchanged through long periods of time. But now and then under favourable circumstances it raises the type. At all events, whenever the type is raised, it is through survival of the fittest, implying destruction of all save the fittest.