Columbia subject headings:
Civilization--United States.
Commons, John R. (John Rogers), 1862-1945.
Jurisprudence.
Law--Great Britain--History.
Law--United States--History.
Philosophy, American.
Santayana, George, 1863-1952.
Harvard subject headings:
Commons, John R. (John Rogers), 1862-1945.
Law--Great Britain--History
Law--United States--History
Philosophy, American.
Santayana, George, 1863-1952.
United States--Civilization.
Princeton subject headings: