Note 260 — V 1841 (ÆT. 23-24) (continued 2)

[Week, p. 339; Riv. 419. The "double spruce" is now generally known as the black spruce. Thoreau makes it "single spruce" (i. e., white spruce) in the book, but the tree he was familiar with was the black. He confused these two species for a time, but eventually discovered his error.]