Thoreau writes in his journal:
Nicollet Island, where the bridge crosses . . .
Hear and see red-headed woodpecker on a telegraph post within stone’s throw of post office . . .
Dry cra-a-ck of hyla in sloughs on prairie… The Minnesota University here is set in the midst of such an oak opening & it looks quite artificial, & unlike our pines left standing will probably thrive as if nothing had happened.
(Thoreau’s Minnesota Journey, 5)
Thoreau also writes to his sister Sophia:
I last evening called on Mr. Thatcher. He is much worse in consequence of having been recently thrown from a carriage,—so as to have had watchers within a few nights past. He was, however, able to give me a letter to Dr. Anderson of Minneapolis, just over the river. You may as well direct to Mr. Thatcher’s care still; for I cannot see where I may be a fortnight hence.