I was much surprised by the perusal of your letter of the 23d inst., received this morning. I had seen no letter from you since that to which I replied on the 11th inst., and was mortified that through a mistake of my own, and from no neglect of my private secretary, it had been misplaced from a large mail of the 17th, with one or two other letters, and had thus entirely escaped my notice. The motives which led me to desire your acceptance of the mission to England were fully stated, first, I think, in my note addressed to you at Wheatland, and subsequently in our interview. The general views which were expressed by me at that interview as to the relative advantages of conducting the negotiations here or at London has undergone no change. Still, the present condition of affairs with respect to the fisheries and the various questions connected therewith has seemed to demand that they be taken up where Mr. Crampton and Mr. Everett left them. Recent developments have inspired the belief that the fisheries, the reciprocity question, etc. will leave no ground of concession which could be available in the settlement of the questions in Central America. The threatening aspect of affairs on the coast in the provinces has of necessity called for several conversations between Mr. Crampton and the Secretary of State, with a view to keep things quiet there, and, if practicable, to agree upon terms of a satisfactory adjustment. To suspend these negotiations at this moment, in the critical condition of our interests in that quarter, might, I fear, prove embarrassing, if not hazardous. That a treaty can be, or had better be, concluded here, I am not prepared to say. I have no wish upon the subject except that the negotiations be conducted wherever they can be brought to the most speedy and advantageous termination. The great respect for your judgment, experience, high attainments and eminent abilities, which led me to tender to you the mission to England, will induce me to commit to your hands all the pending questions between the two countries, unless the reasons for proceeding here with those to which I have referred, shall appear quite obvious. I need not say that your declination at this time would be embarrassing to me, and for many reasons a matter to be deeply regretted. I thank you for your generous expressions, and assure you that your heart acknowledges no feeling of personal kindness to which mine does not respond. If the tax be not too great, will you oblige me by visiting Washington again? I trust a comparison of conclusions, with the facts before us, may conduct to a result mutually satisfactory. With the highest respect, your friend, FRANKLIN PIERCE. [MR. BUCHANAN TO PRESIDENT PIERCE.] WHEATLAND, near LANCASTER, June 29th, 1853.