Columbia subject headings:
Harvard subject headings:
Emerson, Ralph Waldo, 1803-1882--Travel--Massachusetts--Concord.
Philosophy, Modern.
Thoreau, Henry David, 1817-1862--Travel--Massachusetts--Concord.
Transcendentalism (New England)
Transcendentalists (New England)
Princeton subject headings:
Emerson, Ralph Waldo, 1803-1882--Philosophy.
Thoreau, Henry David, 1817-1862--Philosophy.
Transcendentalism (New England)