Thoreau writes in his journal:
My three kinds of birch sap have now become more acid, especially the white and canoe birch. The black birch is milder and more agreeable. With sugar it is an agreeable drink. I prefer it to cream-o’-tartar water. This is the real birch wine.
Thoreau also writes to John Langdon Sibley:
I return herewith the following books to the Library—viz—“Columella of Husbandry” 1. v. “Pennsylvania, Ohio, & Delaware” 1. v. Jesuit Relations for 1639 & 1642 & 3 2. vols.
Yrs
Henry D. Thoreau
