Tinkoff, Paysoff. No. 727, in Supreme Court, Oct. term, 1930, Paysoff Tinkoff v. Andrew W. Mellon, individually, Andrew W. Mellon, Secretary of Treasury, an officer of United States, and legal successors of said Andrew W. Mellon, as Secretary of Treasury, on petition for writ of certiorari to Court of Appeals of District of Columbia; brief for respondents in opposition.