Thoreau writes in his journal:
P.M.—I go to sail down to the Island and up to Hubbard’s Causeway.
Most would call it cold to-day. I paddle without gloves. It is a coolness like that of March 29th and 30th, pleasant to breathe, and, perhaps, like that, presaging decidedly warmer weather. It is an amelioration, as nature does nothing suddenly.