“SIR--I was not aware until you mentioned it that there was any doubt as to the authenticity of Dr. Livingstone’s despatches, which you delivered to Lord Lyons on the 31st of July; but, in consequence of what you have said, I have inquired into the matter, and I find that Mr. Hammond, the Under Secretary of the Foreign Office, and Mr. Wyld, the head of the Consular and Slave Trade Department, have not the slightest doubt as to the genuineness of the papers which have been received from Lord Lyons, and which are being printed. “I cannot omit this opportunity of expressing to you my admiration of the qualities which have enabled you to achieve the object of your mission, and to attain a result which has been hailed with so much enthusiasm both in the United States and in this country. “I am, sir, your obedient, “GRANVILLE. “HENRY M. STANLEY, ESQ.” As if all this were not enough we have the testimony of the Queen’s speech, delivered for Queen Victoria by commission, on the occasion of the prorogation of Parliament, on Saturday, August 10, 1872. The Queen said: “My government has taken steps intended to prepare the way for dealing more effectually with the slave trade on the east coast of Africa.” The London “Times” of the following Monday, in commenting on this portion of Her Majesty’s speech, said: “This paragraph is the most significant part of the throne speech, and we suppose it is not an error to connect the announcement which has just been made by Her Majesty with the recent discovery of Dr. Livingstone and the despatches to the Foreign Office brought by Mr. Stanley, of the New York ‘Herald,’ from the great traveler.” * * * * * It would be impossible, it is believed, to more completely demonstrate the hearty acknowledgment of the British Government of the success of the American enterprise--an acknowledgment which no earthly power but that of unanswerable truth could have compelled that Government to make.