After London by Richard Jefferies

For four days Felix remained on the island recovering his strength. By degrees the memory of the scenes he had witnessed grew less vivid, and his nerves regained their tone. The fifth morning he sailed again, making due south with a gentle breeze from the west, which suited the canoe very well. He considered that he was now at the eastern extremity of the Lake, and that by sailing south he should presently reach the place where the shore turned to the east again. The sharp prow of the canoe cut swiftly through the waves, a light spray flew occasionally in his face, and the wind blew pleasantly. In the cloudless sky swallows and swifts were wheeling, and on the water half a dozen mallards moved aside to let him pass.

About two hours after he started he encountered a mist, which came softly over the surface of the water with the wind, and in an instant shut out all view. Even the sun was scarcely visible. It was very warm, and left no moisture. In five minutes he passed through and emerged again in the bright sunlight. These dry, warm mists are frequently seen on the Lake in summer, and are believed to portend a continuance of fine weather.