_September 21st._--The old Crimean correspondent of the 'Times' has despatched a very interesting and graphic account of the coronation at Moscow, and Granville writes word that whereas he had estimated the cost of it at a million sterling, he was now led to believe it would be not much less than three. The coronation of George IV. cost 240,000_l._, which was considered an enormous sum and a monstrous extravagance. Our two last coronations cost from 30,000_l._ to 50,000_l._ The quarrel with the King of Naples appears to be coming to a crisis, and though it will not produce any serious consequences now, the precedent of interference we are establishing may have very important ones at some future time, and though philanthropy may make us rejoice at some coercion being applied to put an end to such a cruel and oppressive government as that of King Bomba (as they call Ferdinand), it may be doubted whether it would not be sounder policy to abstain from interference with what only indirectly and remotely concerns us, and from enforcing a better and more humane system of government in a country where the people do not seem to care much about its tyranny and inhumanity. And then there is the great objection of dictating to and interfering with weak governments while we do not venture to deal in the same way with the equally flagrant abominations of stronger ones, to say nothing of a host of difficulties and objections which suggest themselves as possible, if not probable, results of our interference. It will afford to other Powers an excuse if not a right to interfere in like manner, whenever they require a pretext, and they consider it their interest to do so; and if such cases occur, the peace of the world will be largely endangered. As it is, I strongly suspect (for I know nothing) that the agreement on the Neapolitan question between France and ourselves is by no means cordial and complete. Mrs. Craven writes me word she has been in a house in the country with Walewski, who talked very openly (and no doubt imprudently) to her, telling her that Palmerston was very difficult to go on with. I know not what Palmerston has been doing, nor what his present policy may be, but I thought he had either abandoned or greatly modified that old policy of meddling and bullying to which he used to be so addicted, and at all events that while the foreign policy of England is directed by Clarendon, we should abstain from anything very arbitrary and violent. It is, however, whispered that Walewski is no longer in the good graces of the Emperor, and what I heard long ago about Her Majesty's opinion of him renders it not unlikely.