and powers of a body corporate and may sue and be sued in the United
States courts having jurisdiction of the action brought; it may receive
deposits from banks and act in every capacity of a bank for other
banks, but shall not allow or pay any interest on such deposits; it
shall have power to receive, collect, and forward bank notes; it shall
have power to buy and sell commercial paper and bills of exchange from
and to the banks which are members of such zone; it shall have power to
act as the agent or attorney in fact of the banks which are members of
any of the commercial zones, so far as it may be necessary to do so to
carry into effect the purposes of this organization; it shall have the
power to do and perform any and all acts that may be necessary for the
proper performance of its duties in the supervision of all banks under
it, and in the conduct and operation of the commercial zone.