As I ascended the mountainside, I came once more to overlook the upper surface of the fog; but it wore a different appearance from what I had beheld at daybreak. For, first, the sun now fell on it from high overhead, and its surface shone and undulated like a great nor’land moor country, sheeted with untrodden morning snow. And next the new level must have been a thousand or fifteen hundred feet higher than the old, so that only five or six points of all the broken country below me, still stood out. Napa Valley was now one with Sonoma on the west. On the hither side, only a thin scattered fringe of bluffs was unsubmerged; and through all the gaps the fog was pouring over, like an ocean, into the blue clear sunny country on the east. There it was soon lost; for it fell instantly into the bottom of the valleys, following the watershed; and the hilltops in that quarter were still clear cut upon the eastern sky.