★★ Whatever else it was (gray, principally), here was something new for the season: an intimation not of sparkly autumn but of the deep damp chill behind it. A flight of purple clouds in the west lingered a good while after sunup before yielding to a general overcast. Then a soaking undramatic rain fell in the middle of the afternoon. The smell of wet live greenery, available still, was on the air at rush hour. Shoe soles slipped on the pavement. Uptown it was drier underfoot, the clouds darker but looking less like rain.