But what is that black speck creeping across that cleared field near the top of the mountain at the head of the valley, three quarters of a mile away? It is like a fly moving across an illuminated surface. A distant mellow bay floats to us, and we know it is the hound. He picked up the trail of the fox half an hour since, where he had crossed the ridge early in the morning, and now he has routed him and Reynard is steering for the Big Mountain. We press on and attain the shoulder of the range, where we strike a trail two or three days old of some former hunters, which leads us into the woods along the side of the mountain. We are on the first plateau before the summit; the snow partly supports us, but when it gives way and we sound it with our legs, we find it up to our hips. Here we enter a white world indeed. It is like some conjurer's trick. The very trees have turned to snow. The smallest branch is like a cluster of great white antlers. The eye is bewildered by the soft fleecy labyrinth before it. On the lower ranges the forests were entirely bare, but now we perceive the summit of every mountain about us runs up into a kind of arctic region where the trees are loaded with snow. The beginning of this colder zone is sharply marked all around the horizon; the line runs as level as the shore line of a lake or sea; indeed, a warmer aerial sea fills all the valleys, submerging the lower peaks, and making white islands of all the higher ones. The branches bend with the rime. The winds have not shaken it down. It adheres to them like a growth. On examination I find the branches coated with ice, from which shoot slender spikes and needles that penetrate and hold the cord of snow. It is a new kind of foliage wrought by the frost and the clouds, and it obscures the sky, and fills the vistas of the woods nearly as much as the myriad leaves of summer. The sun blazes, the sky is without a cloud or a film, yet we walk in a soft white shade. A gentle breeze was blowing on the open crest of the mountain, but one could carry a lighted candle through these snow-curtained and snow-canopied chambers. How shall we see the fox if the hound drives him through this white obscurity? But we listen in vain for the voice of the dog and press on. Hares' tracks were numerous. Their great soft pads had left their imprint everywhere, sometimes showing a clear leap of ten feet. They had regular circuits which we crossed at intervals. The woods were well suited to them, low and dense, and, as we saw, liable at times to wear a livery whiter than their own.