to :,'o. 37, (A 9117/4/26). FOREIGN OFFICE, S.W.I. 12th January, 1910. My Lord Marquess, I have read with interest Your Lordship's despatch 141? of the 14th December recording your conversation with the Under-Secretary of State on the 12th December on the subject of Mexican oil, and enclosing a copy of the aide-memoire which you handed to him on that occasion. I take this opportunity to express my entire approval of the manner in which the views of His Majesty's Government in regard to this question are set out in the aide-memoire* as also of your decision, when speaking to Mr. Sumner V/elles, to omit any reference to the practical methods whereby the United States authorities might discourage the import of Mexican oil into the United States of America. I am, with great truth and respect, My Lord Marquess, Your Kxcellency's obedient Servant, Oct" (For the Secretary of State) His Excellency The Most Honourable The Marquess of Lothian, C.H., etc., etc., etc. , Washington. 4o(