First published in 1863, "Excursions" is an anthology of several essays by American transcendentalist Henry David Thoreau. The anthology was published posthumously and contains an introduction entitled "Biographical Sketch" in which fellow transcendentalist Ralph Waldo Emerson provides a description of Thoreau.
The collection, other than R. W. Emerson's biography of Thoreau, contains nine of Thoreau's essays: Natural History of Massachusetts, A Walk to Wachusett, The Landlord, A Winter Walk, The Succession of Forest Trees, Walking, Autumnal Tints, Wild Apples, and Night and Moonlight.