Columbia subject headings:
Authors, American--19th century--Correspondence.
Emerson, Ralph Waldo, 1803-1882--Correspondence.
Emerson, Ralph Waldo, 1803-1882.
Harvard subject headings:
Authors, American--19th century--Correspondence
Emerson, Ralph Waldo, 1803-1882
Emerson, Ralph Waldo, 1803-1882. Correspondence
Princeton subject headings:
Emerson, Ralph Waldo, 1803-1882.