But another Convention assembled at Baltimore on the same 23d June, styling itself the “National Democratic Convention.” It was composed chiefly of the delegates who had just withdrawn from the Douglas Convention, and the original delegates from Alabama and Louisiana. One of their first acts was to abrogate the two-third rule, as had been done by the Douglas Convention. Both acted under the same necessity, because the preservation of this rule would have prevented a nomination by either. Mr. Cushing was elected and took the chair as President. In his opening address he said: “Gentlemen of the Convention, we assemble here, delegates to the National Democratic Convention, duly accredited thereto from more than twenty States of the Union, for the purpose of nominating candidates of the Democratic party for the offices of President and Vice-President of the United States, for the purpose of announcing the principles of the party, and for the purpose of continuing and re-establishing that party upon the firm foundations of the Constitution, the Union, and the co-equal rights of the several States.” Mr. Avery, of North Carolina, who had reported the majority resolutions at Charleston, now reported the same from the committee of this body, and they “were adopted unanimously, amid great applause.” The Convention then proceeded to select their candidates. Mr. Loring, on behalf of the delegates from Massachusetts, who with Mr. Butler had retired from the Douglas Convention, nominated John C. Breckinridge, of Kentucky, which Mr. Dent, representing the Pennsylvania delegation present, “most heartily seconded.” Mr. Ward, from the Alabama delegation, nominated R. M. T. Hunter, of Virginia; Mr. Ewing, from that of Tennessee, nominated Mr. Dickinson, of New York; and Mr. Stevens, from Oregon, nominated General Joseph Lane. Eventually all these names were withdrawn except that of Mr. Breckinridge, and he received the nomination by a unanimous vote. The whole number of votes cast in his favor from twenty States was 103½. General Lane was unanimously nominated as the candidate for Vice-President. Thus terminated the Breckinridge Convention. The Chicago Republican Convention.