tion of de- fendant charged with inducing girls to ga in interstate commerce for purpose of en- gaging in immoral practices. 18 U.S. C.A. § 2422. Joseph D. Tydings, U. S. Atty., John G. Underwood, and Carl J. Lorenz, Jr., Asst. U. S. Attys., Baltimore, hid, for plaintiff. Nathan M. Cohen, Chicago, Ill., for