Petition for writs of certiorari to the *598Circuit Court of Appeals for the Third Circuit granted.
Mr. Francis Rawle, Mr. Joseph W. Henderson, Mr. George Whitefield Betts, Jr., and Mr. George C. Sprague for petitioners. Mr. D. Roger Englar and Mr. James D. Carpenter, Jr., for respondent. Mr. John W. Griffin and Mr. Roscoe H. Hupper, by leave of court filed briefs as amid curiae.