Thoreau writes in his journal:
In the latter part of October the skaters and water-bugs entirely disappear from the surface of the pond, and then and in November, when the weather is perfectly calm, it is almost absolutely as smooth as glass. This afternoon a three-days’ rain-storm is drawing to an end, though still overcast. The air is quite still but misty, from time to time mizzling, and the pond is very smooth, and its surface difficult to distinguish, though it no longer reflects the bright tints of autumn but sombre colors only . . .