Wolsum, steamship. No. 4140, in circuit court of appeals for 5th circuit, Stoomvaart Maatschappy Oostzee, owner of steamship Wolsum, v. United States, owner of steamship West Himrod; United States, owner of steamship West Himrod, v. Stoomvaart Maatschappy Oostzee, owner of steamship Wolsum, on appeal from district court for Canal Zone; brief for United States.