Thoreau writes in his journal:
That wonderful frostwork of the 13th and 14th was too rare to be neglected,—succeeded as it was, also, by two days of glaze,—but, having company, I lost half the advantage of it. It was remarkable to have a fog for four days in midwinter without wind. We had just had sudden severe cold weather, and I suspect that the fog was occasioned by a warmer air, probably from the sea, coming into contact with our cold ice-and-snow-clad earth. The hoar frost formed of the fog was such a one as I do not remember on such a scale . . .
P.M.—Up Assabet to bridge . . .
