built up of crystals. But here on the surface, the tender green mosses and the bright lichens have begun the struggle of the cellular system for supremacy. These humble little rock-breakers will not rest until they have pulverized the rocks into soil sufficient to sustain higher forms of vegetable life.

Once before, many millions of years ago, the cell life had won a partial victory over the crystal. In the great sub-tropical sea which once covered this spot, corals lived and flourished as they do now in similar seas. Myriads of brachiopods lived, moved, and had their being. Gigantic fish sported in the waters. Meanwhile older rocks were being denuded and disintegrated. Millions of tons of sediment were brought by the rivers and streams to the shores of the Devonian sea. Upheaval, change, transformation followed, and the tide of battle turned. Cell life was powerless before the vanquishing crystals of the infiltrating calcite. Only the inorganic part of that vast world of organic life here remains in these fossils to tell the story—the walls of the corals, the shells of the brachiopods, the teeth of the monster fishes. Then came succeeding ages, and finally the great glaciers which brought down the drift, rounded the sharp ridges, filled up the deep valleys and gorges, and gave to Iowa her fertile and inexhaustible soil. The earth was prepared to receive her king. The glaciers receded. Man came.

Now here, on this bit of limestone rock, the struggle is on again. The mosses and the lichens have proceeded far enough in their work of disintegration to provide substance for the slender red stem of dogwood, which is growing out of the soil they have made. The fallen leaves of the surrounding trees follow the pioneer work of the mosses. The rain and the cracking frosts are other agencies. By and by the organic will triumph over the inorganic, the cell over the crystal, the plant over the rock, and where now the fossils lie beautiful flowers will bloom.

The short winter day draws rapidly to a close and there is time for only a brief survey of the beauty of the upland trees. The fairy-like delicacy of the hop hornbeam, with its hop clusters and pointing catkins; the slender gracefulness of the chestnut oak; the Etruscan vase-like form of the white elm; the flaky bark and pungent, aromatic twigs of the black cherry; the massive, noble, silver-gray trunk of the white-oak; the lofty stateliness, filagree bark, and berry-like fruit of the hackberry; the black twigs of the black oaks, ashes, hickories and walnuts etched against the sky,—all these arrest your attention and retard your steps until the sun is near the horizon and you look over the tangled undergrowth of hazel, sumac, and briers, far through the trunks of the trees to the western sky which is bathed in flame color, as if from a forest fire.

You are alone and yet not alone. A rabbit scurries across your pathway. A faint little squeak voices the fright of a mouse. There is a swoop of wings which you neither distinctly hear nor clearly see, yet you are aware, in a less marked degree than was the mouse, that an owl was near. You feel certain that the downy woodpecker is asleep in that neat little round hole on the southwest side of a tree trunk, just a little higher than you can reach. In the early afternoon you saw a red squirrel go gaily up a tall red oak and climb into his nest of leaves. You fancy he is snugly coiled there now. This recent hill of fresh dirt—strange sight in January—was surely made by a mole, and you know that they are all somewhere beneath your feet: moles, pocket gophers, and the pretty striped gopher which used to sit up on his hind legs, fold his front paws, and look at you in the summer time, then give a low whistle and duck; meadow mice in their cozy tunnels through which the water will be pouring when the spring freshets come; the woodchuck in his long, long sleep, and the chipmunk with his winter store of food. And so watching, listening, and musing you come at length to the western edge of the woodland and look across the prairie, far as the eye can reach, to where the red ball of the sun hangs scarce a yard above the horizon. You look upon a scene which is peculiar to this part of Iowa alone. It is not found in any other state or nation on earth. "These are the gardens of the desert, for which the speech of England has no name—the Prairies."

The "rounded billows fixed" are the paha ridges which the glaciers made. They are not high enough to obstruct the view, nor to mar its ocean-like effect. In the middle distance you may see a farm windmill from sail to platform, but away across the snow-plain sea you catch only the uppermost part of the white sails. The rest is concealed from view by the illusory rise of the foreground toward the horizon—for this twenty-mile stretch of prairie has an illusory curve similar to that seen from all ocean shores. But now the sun has disappeared and the windmills, houses, groves, and fences which looked like black etchings against the flame-colored sky slowly vanish, first far away toward the bluffs on the yon shore of the prairie sea, then nearer, nearer, comes the gloom until the fence across the first field is scarcely discernible. The bright vermilion fades at length to misty gray and lights appear in the windows of the farm homes.

This sunset and twilight scene, peculiar to Iowa, is succeeded by the pageant of the stars. These are not peculiar, in neighboring latitudes, to any clime or time. They are the same stars which sang together when the foundations of the earth were fastened; the same calm stars upon which Adam gazed in remorse, the night he was driven from the garden of Eden. The Chinese, the Chaldeans, the Egyptians, the Hebrews, the Greeks, the Romans counted the hours of the night by the revolutions of the Greater and the Lesser Bear around Polaris, and guided their crafts and caravans by that sure star's light:

These

were mysteries to Ptolemy and to Plato, as well as to Job. All ages of mankind must have watched and wondered, pondering over the unsolved problems. When the First Great Cause projected all these whirling fire-mists into illimitable space with all the laws of physics, chemistry, evolution in perfect working order, did he choose this earth as humanity's only home? Is this the only planet with a plan of salvation? Is this mere speck among all the myriads of worlds in the solar system, and the other systems, the only creation of His hand which has known a Garden of Eden, a Bethlehem, and a Calvary? When the sun has lost his heat and the cold crystals of the earth have fought their last fight with cellular structures, and won; when all the fairy forms of field and forest are only fossils