With reference to my Despatch, No. 34, of the 
20th of June, I have
               the honor to transmit to you for your information and guidance a copy of
               a further letter from the 
Lords Commissoners of the Treasury enclosing
               a copy of a
letter
 letter from 
the Exchequer and Audit Department relative to
               the expenses incurred in connection with the detachment of Royal Marines
               stationed at 
San Juan Island.