Columbia subject headings:
Antitrust law--United States.
Corporation law--United States.
Railroads and state--United States.
Trusts, Industrial--United States.
Harvard subject headings:
Corporation law--United States.
Railroads and state--United States.
Trusts, Industrial--United States.
Princeton subject headings:
Corporation law--United States.
Railroads and state--United States.
Trusts, Industrial--United States.