Mr. Lincoln began by alluding good naturedly to some remarks of the Press and the Post, which he had read on his way hither in the cars. Having with characteristic humor and wit, made a few comments upon the words of the Press, he proposed to take as the main subject of his speech topics suggested by the quotation which the Post made from one of his former speeches. He defended the position which he took in that speech, that this country cannot permanently endure half slave and half free. He gave the context in which his cited words were found, and discussed his subject with great fairness, earnestness and ability. He showed that he occupied only the ground which was taken by the founders of our government, and triumphantly vindicated himself and the RepublicanPage 551 party against the false charges which are so unscrupulously brought against them.