
    
      Certiorari Granted.
    
    
      (See also No. 599, supra.)
    
    No. 575. No. 580.
    Secretary of Agriculture v. Central Roig Refining Co. et al. ; and Porto Rican American Sugar Refinery, Inc. v. Central Roig Refining Co. et al.
    
      Solicitor General Perlman for petitioner in No. 575. Orlando J. Antonsanti, Arthur L. Quinn and Gordon P. Peyton for petitioner in No. 580. Frederic P. Lee and Noel T. Dowling for the Central Roig Refining Co. et al.; Howard C. Westwood and Donald Hiss for the American Sugar Refining Co. et al.; and Thurman Arnold and Walton Hamilton for the Government of Puerto Rico, respondents.
   United States Court of Appeals for the District of Columbia Circuit. Certiorari granted.  