Cabinet at half-past three. First question: whether we should extend the time for putting an end altogether to the Brazilian slave trade from March 13 to September 13, 1830, for the equivalent of obtaining for ever the right to seize ships fitted up for the slave trade, whether they had slaves on board or not. The Brazilians have been encouraged by their Government to interpret the treaty as permitting the return of any vessels quitting the Brazils on slave expeditions before March 13. Dr. Lushington, who was consulted by Aberdeen, seemed to think it was worth while to obtain the concession, but still seemed to think that by extending the time, we should permit the transportation of a very large number of slaves, of whom many might be destroyed by ill-treatment, and that it was hardly justifiable with a view to a distant advantage, to sacrifice immediately and certainly a great number of persons. This prevailed--the real fact being that Peel does not like awkward questions in the House of Commons. So the treaty remains as it is, and both parties will interpret it as they please. There will be many disputes, for the interpretation is very different. _June 8._ Received a private letter from Colonel Macdonald at Tabriz, with copies of letters received by him from a gentleman he had sent to Teheran on hearing of the massacre of the Russian mission; and from another gentleman, travelling unofficially, who first heard the report between Tabriz and Kamsin. These accounts only confirm what we had already heard of the arrogance and violence of the Russians. They deserved their fate. Colonel Macdonald says that General Paskewitz cannot dispose of more than 25,000, or, at most, 30,000 men, although he has a nominal force of 110,000 men under his command. Colonel Macdonald says there has been no serious resistance on the part of the Turks, except at Akhalsik. He has done what he can to dissuade them from war with the Russians; but I think the universal feeling of the people will propel them. The insurrection at Teheran appears to have been instigated by the Mollahs and the women, but it was evidently national, or it must have failed. _June 10._ Council. Lord Winford kissed hands. He walked in with great difficulty on two crutches, which he placed behind him and so leant back upon. The King had a chair brought for him, and had him wheeled out. The man who pushed his chair very nearly shipwrecked him at the door. The Attorney-General (Scarlett), [Footnote: Afterwards Lord Abinger.] the Chief Justice of the Common Pleas (Tindal), and the Solicitor-General (Sugden), [Footnote: Afterwards Lord St. Leonards. Lord Chancellor 1862. ] all kissed hands. The Chief Justice of the Common Pleas was sworn in as Privy Councillor. Lord Rosslyn was sworn in as Privy Councillor and Privy Seal. The King did not address a word to me, who gave up the seal, or to Rosslyn, who received it. House. Nothing of moment.