The inclosed copy of a letter addressed to the President by Mr. Oliver Pollock and of the documents presented with it,1 will evince to you, that he has claims upon the Spanish administration at Havana, and that he sets a value upon the interpositions he supposes it in your power to make with them, on his behalf. Allow me therefore to ask your good offices in his favor, in such manner as you may think will at once comport with the degree of justice his case may contain and with the nature of your official correspondence. I have the honor to be, Sir, With very great respect Your most obed. servt.