Thoreau surveys land by Walden Pond for Ralph Waldo Emerson (A Catalog of Thoreau’s Surveys in the Concord Free Public Library, 7; Henry David Thoreau papers. Special Collections, Concord (Mass.) Free Public Library).
Thoreau also writes in his journal:
Surveying Emerson’s wood-lot to see how much was burned near the end of March, I find that what I anticipated is exactly true,—that the fire did not burn hard on the northern slopes, there being then frost in the ground, and where the bank was very steep, say at angle of forty-five degrees, which was the case with more than a quarter of an acre, it did not run down at all, though no man hindered it . . .
