The Cortes of Spain, though in possession of full evidence of the King and French Minister's share in the late attempt of the Guards to effect a counter-revolution, and even of his having placed each of his Ministers in separate confinement during the whole of the night of the attack, seem to think the time not yet ripe to get rid of him, and therefore conceal everything. If they are obliged to dispose of him before the country will allow them to proclaim a republic, they are many of them disposed to propose a union of the Peninsula under the King of Portugal, as the most inefficient shadow of royalty that can be set up. Bobus Smith the other night proposed a caricature of a private conference between Hume and Vansittart as a dialogue of penny-wise and pound-foolish. I see no reason to doubt Canning's going to India. His writ will, I believe, be moved the last day of the session, and as the K---- is going for Scotland immediately afterwards, there will be no room left for intrigue to avert it. The Duke of Wellington is the only one who has appeared to me at all sensible of the loss we shall experience in him, and he speaks of him as being nearly useless out of the walls of the House. The town was startled in the month of August by a terrible incident. The Marquis of Londonderry, on the 12th of the month, terminated his existence by his own hand, at one of his residences, North Cray Farm, near Bexley, Kent, in the fifty-third year of his age. The elevated position he had filled for many years in the Government of this great empire, had made him a prominent mark for the malicious shafts of those who had, or fancied they had, an interest in opposing his policy. During his long and most honourable career, no statesman had accomplished such a series of important services. The Legislative Union of Great Britain and Ireland, had it been suffered to bear the fruit which only came to perfection thirty years later, was a measure of such vital importance to the State, that its successful settlement under the extraordinary circumstances which attended its discussion, entitled him to rank with the ablest ministers of his time; but eminently sagacious and beneficial as was this measure, it was thrown into the shade by the success of subsequent calculations of Lord Castlereagh, first as Secretary-at-War, and then as Foreign Secretary, which effected the overthrow of that brilliant genius by whom his country had so long been menaced. These services appear to have called into existence hosts of political enemies, imbued with the vindictive spirit that prevailed at this period, from whose attacks he was rarely free. They included in their ranks many of a younger generation of adventurers--quite as depreciatory in their opinions, if not as malicious--who regarded his downfall as affording an opening in the direction of place and power.