The Whig National Convention assembled on the sixteenth of June, with Scott, Fillmore and Webster as the candidates. There was yet a considerable anti-slavery element in the party, but it was paralyzed and powerless. It had made a fatal mistake in submitting to the nomination of Gen. Taylor, and became still more completely demoralized by the accession of Fillmore, who turned his back upon his past life, and threw himself into the arms of the slave-holders. The old party had gone astray too long and too far to return, and now determined to seek its fortunes in the desperate effort to outdo the Democrats in cringing servility to the South. The platform of the Convention expressed the reliance of the Whigs "upon the intelligence of the American people," but in its eighth resolution declared their acquiescence in the Compromise Acts of 1850 "as a final settlement, in principle and substance, of the subjects to which they relate"; and it deprecated "all further agitation of the questions thus settled, as dangerous to our peace," and pledged the party "to discountenance all efforts to continue or renew such agitation, whenever, wherever, or however made." On this platform, which is well understood to have been the work of Mr. Webster, Gen. Scott was nominated on the fifty-ninth ballot by a vote of two hundred and twenty-seven to sixty-six, while the highest vote received by Mr. Webster was twenty-nine. Here at last, the Whig party had made a complete surrender of its integrity, and verified all that had ever been said by Free Soilers as to its treachery to freedom; and here, finally, these rival parties were tumbled together into the ditch of slavery, and wallowing in the mire of their degradation and shame. The only issue of the canvass was slavery, and on this they were perfectly agreed, while each, for the sake of the spoils of office, was trying to surpass the other in the damning proofs of its treason to humanity and contempt for the fundamental truths of republican government. The spectacle was most pitiably humiliating, but I counted it an omen of progress. The old parties were now unequivocally committed to the policy of nationalizing the sectional interest of slavery, and the way thus opened for a fair fight. The lines were clearly drawn, and the issue unmistakably made between freedom and free speech on the one side, and slavery and the gag on the other. I thought we should have no more anti-slavery professions from Whigs and Democrats, no further courting of Free-Soilers, and no more mutual upbraidings of servility to the South; and that thus the way would be smoothed for intelligent and effective anti-slavery work.