Thoreau writes in his journal:
P.M.—To Saw Mill Brook . . .
The willows on the Turnpike now resound with the hum of bees, and I hear the yellowbird and Maryland yellow-throat amid them . . .
While at the Falls, I feel the air cooled and hear the muttering of distant thunder in the northwest and see a dark cloud in that direction indistinctly through the wood. That distant thunder-shower very much cools our atmosphere. And I make haste through the woods homeward via Hubbard’s Close. Hear the evergreen-forest note. The true poet will ever live aloof from society, wild to it, as the finest singer is the wood thrush, a forest bird . . .
Over meadows in boat at sunset to Island, etc.
The rain is over. There is a bow in the east. The earth is refreshed; the grass is wet. The air is warm again and still. The rain has smoothed the water to a glassy smoothness. It is very beautiful on the water now . . .
. . . It is surprising what an electrifying effect this shower appears to have had. It is like the christening of the summer, and I suspect that summer weather may be always ushered in in a similar manner,—thunder-shower, rainbow, smooth water, and warns night. A rainbow on the brow of summer. Nature has placed this gem on the brow of her daughter . . .