Thoreau putting flowers in his hat (Journals, June 19, 1852):
I am inclined to think that my hat, whose lining is gathered in midway so as to make a shelf, is about as good a botany-box as I could have and far more convenient, and there is something in the darkness and the vapors that arise from the head –at least if you take a bath–which preserves flowers through a long walk. Flowers will frequently come fresh out of this botany-box at the end of the day, though they have had no sprinkling.
.i`` * ^ / . . . . . ` `~ 