- 2 -
 
      
 
 
2. Within such period or periods as determined by the President, 
      notice of which determination shall be given to the United Kingdom,
 
      
 
 
(a) The United Kingdom agrees to redeliver to the United States 
      such defense articles furnished to the United Kingdom hereunder 
      which, in the opinion of the President, are not used up, worn 
      out, destroyed or otherwise rendered incapable of effective use.
 
      
 
 
(b) The United Kingdom agrees, in the case of defense articles, 
      other than agricultural commodities, which in the opinion of 
      the President are used up, worn out, destroyed, or otherwise 
      rendered incapable of effective use, to furnish to the United 
      States an equivalent amount of similar defense articles, which, 
      in the opinion of the President, are of a quality, efficiency 
      and relative value substantially equal to defense articles furnished 
      hereunder to the United Kingdom.
 
      
 
 
(c) The United Kingdom agrees, in return for
 
      
 
 
(i) agricultural commodities
 
      
 
 
(ii) other defense articles, services and defense information 
      furnished to it hereunder and for which the United States has 
      not otherwise received full reimbursement, to furnish to the 
      United States an equivalent in tin, rubber, jute, and other products 
      and commodities produced in the British Empire or elsewhere and 
      which,