The only noteworthy speech in the convention was delivered by General Thomas Ewing. It was able, but extreme in its hostility to the policy of Congress. He and Mr. Browning were law-partners at the time of Mr. Johnson's accession to the Presidency. Both had supported Mr. Lincoln, and both now resolved to oppose the Republican party. General Ewing's loss was regretted by a large number of friends. He had inherited talent and capacity of a high order, was rapidly rising in his profession, and seemed destined to an inviting political career in the party to which he had belonged from its first organization. In supporting the policy of President Johnson he made a large sacrifice,--large enough certainly to free his action from the slightest suspicion of any other motive than conviction of duty. General Ewing has since adhered steadily to the Democratic party. The fourth of the National Conventions which this remarkable year witnessed, was that of the citizen soldiers and sailors, held at Pittsburg on the 25th and 26th of September. Nine out of ten, perhaps even a larger proportion, of those who had defended the Union with arms, were hostile to the President's policy. As soon therefore as it was attempted to secure a political advantage for the Administration by calling the Cleveland Convention, the great mass of Union soldiers demanded that a convention be held in which their true position might be proclaimed. The response was overwhelming both in numbers and enthusiasm. Pittsburg was literally overrun. In addition to the large number of regimental and company officers who had done their duty in the service, there was an immense outpouring of privates. It was said that not less than twenty-five thousand who had served in the ranks of the Union army were present. A private soldier, L. Edwin Dudley, was chosen temporary president, and a majority of the prominent officers of the convention were privates and non-commissioned officers. Mr. Dudley was a clerk in the Treasury Department at Washington, and being refused a leave of absence for two days to attend the convention, he promptly resigned his place and joined his brethren at Pittsburg. The incident of the resignation strikingly illustrates the depth of feeling which the contest between the President and Congress had developed among the soldiery of the Union.