P. M. —To Walden.
The willow and aspen catkins have pushed out considerably since the 1st of February in warm places.
I have frequently seen the sap of maples flow in warm days in the winter, in warm localities. This was in twigs. Would it in the trunks of large trees? And if not, is not this an evidence that this sap did not come up from the roots?
The meadow east of the railroad causeway is bare in many spots, while that on the west is completely and deeply covered; yet a few weeks ago it was deepest on the east. I think of no reason for this, except that the causeway may keep off the cold northwest winds from the former meadow. For thirty rods distant there are no bare spots. Why is the eastern slope, now, as every spring, (almost completely) bare, long before the western?
The road runs north and south, and the sun lies on the one side as long as on the other. Is it more favorable that the frozen snow be acted on by the warmed air before the sun reaches it than after it has left it? Another and second reason is probably that there is less snow on that side or on the west slope of a hill than on the eastern. Snow drifting from the northwest lodges under the west bank.
So I observe to-day that the hills rising from the north and west (and this seems to give weight to the second reason urged above) sides of Walden are partially bare, while those on the south and east are deeply and completely covered with snow.
Mr. Bull tells me that his grapes grow faster and ripen sooner on the west than the east side of his house.
There have been few if any small migratory birds the past winter. I have not seen a tree sparrow, nuthatch, creeper, nor more than one redpoll since Christmas. They probably went further south.
I now slump from two to four inches into Walden, though there has been no rain since I can remember. I cannot cut through, on account of the water in the softened ice flowing into the hole. At last, in a drier place, I was not troubled with water, till I had cut about a foot, or through the snow ice, when two or three streams of water half an inch or more in diameter spurted up through holes in the disorganized, partly honeycombed clear ice; so I failed to get through.
Probably the clear ice is thus riddled all over the pond, for this was a drier place than usual. Is it the effect of the melted snow and surface working down? or partly of water pressing up?
The whole mass in the middle is about twenty-four inches thick, but I scrape away about two inches of the surface with my foot, leaving twenty-two inches. For about a rod from the shore, on the north and west sides (I did not examine the others), it is comparatively firm and dry, then for two rods you slump four inches or more, then, and generally, only about two. Is that belt the effect of reflection from the hills?
Hear the hurried and seemingly frightened notes of a robin and see it flying over the railroad lengthwise, and afterwards its tut tut at a distance. This and the birds of yesterday have come, though the ground generally is covered deep with snow. They will not only stay with us through a storm, but come when there are but resting-places for them. It must be hard for them to get their living now.
The tallest water andromedas now rise six or eight inches above the snow in the swamp.
H. D. Thoreau, Journal, March 25, 1856
