That is an era, when, in the beginning of the winter, you change from the shoes of summer to the boots of winter.

December 6. 

P. M. — To Walden and Baker Bridge, in the shallow snow and mizzling rain. 

It is somewhat of a lichen day. The bright-yellow sulphur lichens on the walls of the Walden road look novel, as if I had not seen them for a long time. Do they not require cold as much as moisture to enliven them? What surprising forms and colors! Designed on every natural surface of rock or tree. Even stones of smaller size which make the walls are so finished, and piled up for what use? How naturally they adorn our works of art! 

See where the farmer has set up his post-and-rail fences along the road. The sulphur lichen has, as it were, at once leaped to occupy the northern side of each post, as in towns handbills are pasted on all bare surfaces, and the rails are more or less gilded with them as if it had rained gilt. The handbill which nature affixes to the north side of posts and trees and other surfaces. 

And there are the various shades of green and gray beside. 

Though it is melting, there is more ice left on the twigs in the woods than I had supposed. 

The mist is so thick that we cannot quite see the length of Walden as we descend to its eastern shore. The reflections of the hillsides are so much the more unsubstantial, for we see even the reflected mist veiling them. You see, beneath these whitened wooded hills and shore sloping to it, the dark, half mist-veiled water. 

For two rods in width next the shore, where the water is shallowest and the sand bare, you see a strip of light greenish two or three rods in width, and then dark brown (with a few green streaks only) where the dark sediment of ages has accumulated. 

And, looking down the pond, you see on each side successive wooded promontories — with their dim reflections — growing dimmer and dimmer till they are lost in the mist. The more distant shores are a mere dusky line or film, a sort of concentration of the mistiness. 

In the pure greenish stripe next the shore I saw some dark-brown objects above the sand, which looked very much like sea turtles in various attitudes. One appeared holding its great head up toward the surface. 

They were very weird-like and of indefinite size. I supposed that they were stumps or logs on the bottom, but was surprised to find that they were a thin and flat collection of sediment on the sandy bottom, like that which covered the bottom generally further out. 

When the breeze rippled the surface some distance out, it looked like a wave coming in, but it never got in to the shore. 

No sooner has the snow fallen than, in the woods, it is seen to be dotted almost everywhere with the fine seeds and scales of birches and alders, — no doubt an ever-accessible food to numerous birds and perhaps mice. Thus it is alternate snow and seeds.

Returning up the railroad, I see the great tufts of sedge in Heywood's meadow curving over like locks of the meadow's hair, above the snow.  These browned the meadow considerably. 

Then came a black maze, of alders moistened by the rain, which made a broad black belt between the former brown and the red-brown oaks higher up the hillside. 

The white pines now, seen through the mist, the ends of their boughs drooping a little with the weight of the glaze, resemble very much hemlocks, for the extremities of their limbs always droop thus, while pines are commonly stiffly erect or ascendant.

***

I took out my boots, which I have not worn since last spring, with the mud and dust of spring still on them, and went forth in the snow. That is an era, when, in the beginning of the winter, you change from the shoes of summer to the boots of winter.

H. .D. Thoreau,  Journal, December 6, 1859

It is somewhat of a lichen day. See December 31, 1851 ("Nature has a day for each of her creatures, her creations. To-day it is an exhibition of lichens at Forest Hall.”); and note to February 7. 1959("I see the sulphur lichens on the rails brightening with the moisture I feel like studying them again as a relisher or tonic, to make life go down and digest well, as we use pepper and vinegar and salads. They are a sort of winter greens which we gather and assimilate with our eyes.")


No sooner has the snow fallen than, in the woods, it is seen to be dotted almost everywhere with the fine seeds and scales of birches and alders, — no doubt an ever-accessible food to numerous birds and perhaps mice. See November 4, 1860 ("The birch begins to shed its seed about the time our winter birds arrive from the north."; )December 4, 1854 ("Already the bird-like birch scales dot the snow.");See December 4 1856 ("I see where the pretty brown bird-like birch scales and winged seeds have been blown into the numerous hollows of the thin crusted snow. So bountiful a table is spread for the birds. For how many thousand miles this grain is scattered over the earth."); December 18, 1852 ("The crust of the slight snow covered in some woods with the scales (bird-shaped) of the birch, and their seeds. "); December 30, 1855 (“For a few days I have noticed the snow sprinkled with alder and birch scales.”); January 7, 1853 ("Still the snow is strewn with the seeds of the birch, the small winged seeds or samarae and the larger scales or bracts shaped like a bird in flight, . . .They cover the snow like coarse bran."); January 7, 1854 ("The bird-shaped scales of the white birch are blown more than twenty rods from the trees."); January 7, 1856 ("I see birch scales (bird-like) on the snow on the river more than twenty rods south of the nearest and only birch, and trace them north to it").


That is an era, when, in the beginning of the winter, you change from the shoes of summer to the boots of winter. See November 28, 1850 ("Within a day or two the walker finds gloves to be comfortable, and begins to think of an outside coat and of boots. Embarks in his boots for the winter voyage."); December 3, 1856 ("The man who has bought his boots feels like him who has got in his winter's wood.”); December 8, 1852 ("One cannot burn or bury even his old shoes without a feeling of sadness and compassion");compare March 30, 1860 (“It is time to begin to leave your greatcoat at home, to put on shoes instead of boots and feel lightfooted.”)