AT NASHVILLE, TENNESSEE, AUGUST 17, 1840.

[ON this occasion, a short time previous to the presidential election, an immense assemblage of whigs, called ‘the southwestern convention,’ met at Nashville, Tennessee, to take measures to promote the election of General Harrison. Mr. Clay accepted an urgent invitation to be present, and address the convention, the substance of which address is subjoined, relating to the political topics of the day, and some reminiscences of the past; alluding, also, to his political differences with general Jackson, whose residence was near Nashville.]

MR. CLAY was called for, with an enthusiasm which seemed to have no bounds; and, when he came forward, with those characteristic smiles playing all over his remarkable countenance, the air was rent with nine such cheers as it has seldom fallen to the lot of any man to receive. When those had subsided, he commenced somewhat as follows.

Mr. President, gentlemen of the convention, ladies, friends, and fellow-citizens. This day may be likened to the glorious and genial sun that now shines upon us. Clouds are occasionally flitting over it, and obscuring, for the moment, its beaming rays, but truth will break through the mist, and shine the brighter for having been for a time obscured. By November next, the dark clouds which have been lowering above the political horizon, will all disappear. I congratulate this vast multitude upon the glorious prospect before us.

This, said Mr. Clay, is a convention of the people, and he asked if he might not, without arrogance, revert to the cause of his appearing before them. During the arduous contest in which he had been long engaged, occasional clouds lowered about him, but, conscious of the correctness of his motives, of the purity of his intentions, he had stood out from the beginning dauntless, erect, and undismayed.

Had he visited Tennessee during the campaign to which he had alluded, he would have disabused the public mind in relation to the charges which were made against him. In giving his vote, in 1825, for Mr. John Quincy Adams, he obeyed the wishes of his constituents. It had been charged that he did not do this, but the charge was unfounded. It was true that the legislature of Kentucky at the time, made a request that he should give a different vote; but that body, in making the request, went beyond its province; ithad no right to interfere in the matter; the right belonged exclusively to his constituents, in the counties of Fayette, Woodford, and Jessamine. Each of these counties sustained, approved, and ratified his conduct at the time, and neither of them has ever, to this day, revoked or annulled that approbation. With respect to his motives, for the course he pursued, he had nothing, on this occasion, to offer. Those motives were known to, and would be adjudged by, his God. He never doubted that the day would come when justice would be done him. Yes, he never doubted that brave, generous, patriotic Tennesseans would be among the first to do him justice. This, he felt they had done. The welcome with which he was greeted on his arrival; the procession, the banners, and last, though not least, the many bright eyes that beamed, and the handkerchiefs that waved on the occasion, all spoke to him a language of true and heartfelt welcome, as grateful as it was flattering to his feelings.

It was true, that he had some reluctance, some misgivings, about making this visit at this time, which grew out of a supposition that his motives might be misconstrued. The relations which had for a longtime existed between himself and the illustrious captain in this neighborhood, were well understood. He feared, if he accepted the invitation to make the visit now, that it might be thought by some that his motives were less patriotic than sinister or selfish. But he assured that great assemblage, that towards that illustrious individual, their fellow-citizen and friend, he cherished, he possessed no unkind feelings. He was a great chieftain; he had fought well and bravely for his country; he hoped he would live long, and enjoy much happiness, and, when he departed from this fleeting vale of tears, that he would enter into the abode of the just, made perfect.

Mr. Clay said, that, in addressing an assembly of so many thousands as he now saw around him, when so many topics were crowding into the mind, he was at a loss to select a theme. Shall I, he asked, dwell upon a ruined currency, upon the prostration of business, the stagnation of trade, and the destruction of commerce? Or shall I speak of the wasteful extravagance of the present powers that be?

A paper had just been put into his hands, which he had never seen before, that represented, in the form of a pyramid, the expenditures of the last three administrations. He held it up to view, and explained its meaning. He read some of the items of expenditure, under the present administration, which is so characteristically economical, and contrasted them with expenditures, under the same heads, made by the administration of John Quincy Adams, an administration whose extravagance so shocked the sensibilities of the whole nation!

But Mr. Clay said, this was not one of the themes he hadselected to address the audience upon. He had thought to refer to, among other things, some of the very extraordinary doctrines now advanced, by those who profess to entertain the greatest veneration and regard for the state rights doctrines. In this connection, he brought up the ridiculous manœuvre, in the United States senate, at the late session, on the subject of the debts of the several states. A long report was made, that the general government would not assume the payment of those debts—a thing that nobody ever dreamed of! This report, of which an extraordinary number of copies was ordered to be printed for circulation, was drawn up, said Mr. Clay, by your fellow-citizen, and an old acquaintance of mine, (honorable Felix Grundy.) And one of the pleasures which I promised myself, in making this visit to your beautiful town, was to meet and talk over matters with him. But, on my inquiry for him, I learned that he was in East Tennessee, making speeches in favor of the present administration! Ah, said I, at his old occupation, defending criminals! (The manner in which this was said, surpasses description. Those only who saw it, or who are acquainted with Mr. Clay’s gesticulations and style of speaking, can imagine any thing approaching the reality.)