There's a patch of old snow in a corner
That I should have guessed
Was a blow-away paper the rain
Had brought to rest.
It is speckled with grime as if
Small print overspread it,
The news of a day I've forgotten--
If I ever read it.
Robert Lee Frost
http://www.poemhunter.com/poem/a-patch-of-old-snow-2/