The note of the tree-pipit came from over the corn—there were some detached oaks away in the midst of the field, and the birds were doubtless flying continually up and down between the wheat and the branches. A willow-wren sang plaintively in the plantation behind, and once a cuckoo called at a distance. How beautiful is the sunshine! The very dust of the road at my feet seemed to glow with whiteness, to be lit up by it, and to become another thing. This spot henceforward was a place of pilgrimage.
Looking that morning over the parapet of the bridge, down stream, there was a dead branch at the mouth of the arch, it had caught and got fixed while it floated along. A quantity of aquatic weeds coming down the stream had drifted against the branch and remained entangled in it. Fresh weeds were still coming and adding to the mass, which had attracted a water-rat.
Perched on the branch the little brown creature bent forward over the surface, and with its two forepaws drew towards it the slender thread of a weed, exactly as with hands. Holding the thread in the paws, it nibbled it, eating the sweet and tender portion, feeding without fear though but a few feet away, and precisely beneath me.
In a minute the surface of the current was disturbed by larger ripples. There had been a ripple caused by the draught through the arch, but this was now increased. Directly afterwards a moorhen swam out, and began to search among the edge of the tangled weeds. So long as I was perfectly still the bird took no heed, but at a slight movement instantly scuttled back under the arch. The water-rat, less timorous, paused, looked round, and returned to feeding.
Crossing to the other side of the bridge, up stream, and looking over, the current had scooped away the sand of the bottom by the central pier, exposing the brickwork to some depth—the same undermining process that goes on by the piers of bridges over great rivers. Nearer the shore the sand has silted up, leaving it shallow, where water-parsnip and other weeds joined, as it were, the verge of the grass and the stream. The sunshine reflected from the ripples on this, the southern side, continually ran with a swift, trembling motion up the arch.
Penetrating the clear water, the light revealed the tiniest stone at the bottom: but there was no fish, no water-rat, or moorhen on this side. Neither on that nor many succeeding mornings could anything be seen there; the tail of the arch was evidently the favourite spot. Carefully looking over that side again, the moorhen who had been out rushed back; the water-rat was gone. Were there any fish? In the shadow the water was difficult to see through, and the brown scum of spring that lined the bottom rendered everything uncertain.
By gazing steadily at a stone my eyes presently became accustomed to the peculiar light, the pupils adjusted themselves to it, and the brown tints became more distinctly defined. Then sweeping by degrees from a stone to another, and from thence to a rotting stick embedded in the sand, I searched the bottom inch by inch. If you look, as it were at large—at everything at once—you see nothing. If you take some object as a fixed point, gaze all around it, and then move to another, nothing can escape.
Even the deepest, darkest water (not, of course, muddy) yields after a while to the eye. Half close the eyelids, and while gazing into it let your intelligence rather wait upon the corners of the eye than on the glance you cast straight forward. For some reason when thus gazing the edge of the eye becomes exceedingly sensitive, and you are conscious of slight motions or of a thickness—not a defined object, but a thickness which indicates an object—which is otherwise quite invisible.
The slow feeling sway of a fish's tail, the edges of which curl over and grasp the water, may in this manner be identified without being positively seen, and the dark outline of its body known to exist against the equally dark water or bank. Shift, too, your position according to the fall of the light, just as in looking at a painting. From one point of view the canvas shows little but the presence of paint and blurred colour, from another at the side the picture stands out.
Sometimes the water can be seen into best from above, sometimes by lying on the sward, now by standing back a little way, or crossing to the opposite shore. A spot where the sunshine sparkles with dazzling gleam is perhaps perfectly inpenetrable till you get the other side of the ripple, when the same rays that just now baffled the glance light up the bottom as if thrown from a mirror for the purpose. I convinced myself that there was nothing here, nothing visible at present—not so much as a stickleback.