
    No. 503.
    United States v. Penn-Olin Chemical Co. et al.
    
      Solicitor General Cox, Assistant Attorney General Orrick, Robert B. Hummel and Lionel Kestenbaum for the United States. William S. Potter, Albert R. Connelly, H. Francis DeLone and John W. Barnum for appellees.
   Appeal from the United States District Court for the District of Delaware. Probable jurisdiction noted.  