The next day the Indian told me their name for this light,—artoosoq',—and on my inquiring concerning the will-o'-the-wisp, and the like phenomena, he said that his "folks" sometimes saw fires passing along at various heights, even as high as the trees, and making a noise. I was prepared after this to hear of the most startling and unimagined phenomena, witnessed by "his folks"; they are abroad at all hours and seasons in scenes so unfrequented by white men. Nature must have made a thousand revelations to them which are still secrets to us.
Henry David Thoreau (1817–1862), U.S. philosopher, author, naturalist. "The Allegash and East Branch" (1864) in The Maine Woods (1864), in The Writings of Henry David Thoreau, vol. 3, p. 200, Houghton Mifflin (1906).