The Republicans had named May 16th, 1860, as the date and Chicago as the place for holding their second National Convention. They had been greatly encouraged by the vote for Fremont and Dayton, and, what had now become apparent as an irreconcilable division of the Democracy, encouraged them in the belief that they could elect their candidates. Those of the great West were especially enthusiastic, and had contributed freely to the erection of an immense “Wigwam,” capable of holding ten thousand people, at Chicago. All the Northern States were fully represented, and there were besides partial delegations from Delaware, Maryland, Kentucky, Missouri and Virginia, with occasional delegates from other Slave States, there being none, however, from the Gulf States. David Wilmot, of Penna., author of the Wilmot proviso, was made temporary chairman, and George Ashmun, of Mass., permanent President. No differences were excited by the report of the committee on platform, and the proceedings throughout were characterized by great harmony, though there was a somewhat sharp contest for the Presidential nomination. The prominent candidates were Wm. H. Seward, of New York; Abraham Lincoln, of Illinois; Salmon P. Chase, of Ohio; Simon Cameron, of Pennsylvania, and Edward Bates, of Missouri. There were three ballots, Mr. Lincoln receiving in the last 354 out of 446 votes. Mr. Seward led the vote at the beginning, but he was strongly opposed by gentlemen in his own State as prominent as Horace Greeley and Thurlow Weed, and his nomination was thought to be inexpedient. Lincoln’s successful debate with Douglas was still fresh in the minds of the delegates, and every addition to his vote so heightened the enthusiasm that the convention was finally carried “off its feet,” the delegations rapidly changing on the last ballot. Lincoln had been a known candidate but a month or two before, while Seward’s name had been everywhere canvassed, and where opposed in the Eastern and Middle States, it was mainly because of the belief that his views on slavery were too radical. He was more strongly favored by the Abolition branch of the party than any other candidate. When the news of his success was first conveyed to Mr. Lincoln he was siting in the office of the _State Journal_, at Springfield, which was connected by a telegraph wire with the Wigwam. On the close of the third ballot a despatch was handed Mr. Lincoln. He read it in silence, and then announcing the result said: “There is a little woman down at our house would like to hear this—I’ll go down and tell her,” and he started amid the shouts of personal admirers. Hannibal Hamlin, of Maine, was nominated for Vice-President with much unanimity, and the Chicago Convention closed its work in a single day. The American Convention.