With reference to my despatch of the
               
30th April last respecting the
               course to be pursued with reference to the intrusion of Citizens of the
               United States into the 
Island of San Juan, I transmit to you herewith
               for your information the copy of a letter from the Foreign Office
               enclosing a despatch from Her Majesty's Minister at 
Washington with the
               copy of a note which he had addressed to 
General Cass on this subject.