Columbia subject headings:
Slavery--United States.
Webster, Daniel, 1782-1852. Seventh of March speech.
Harvard subject headings:
Slavery--United States
Webster, Daniel, 1782-1852. Seventh of March speech.
Webster, Daniel, 1782-1852. Speech of the Hon. Daniel Webster upon the subject of slavery.
Princeton subject headings:
Slavery--United States--Controversial literature.
Webster, Daniel, 1782-1852. Seventh of March speech.