Thoreau writes in his journal:
Observed to-day on the edge of a wood-lot of Loring’s, where his shrub oaks bounded on a neighbor’s small pitch pines, which grew very close together, that the line of separation was remarkably straight and distinct, neither a shrub oak nor a pine passing its limit, the ground where the pines grew having apparently been cultivated so far, and its edges defined by the plow.
A. Bronson Alcott writes in his journal:
Saw Walden with [Ralph Waldo] Emerson. Also, Thoreau, in the evening (The Journals of Bronson Alcott, 255).