A large meeting was held in Dearborn Park on Saturday evening to hear the speech of Mr. Lincoln, and we have never seen an audience held for so long a time in the open air to listen to an argumentativePage 349 speech. The speaker was calm, clear and forcible, constantly referring to indisputable facts in our political history, and drawing conclusions from them in favor of supporting the Anti-Nebraska platform and nominees, that were unanswerable. He showed how the South does not put up her own men for the Presidency, but holds up the prize that the ambition of Northern men may make bids for it. He demonstrated in the strongest manner, that the only issue now before us, is freedom or slavery, that the perpetuity of our institutions is dependent upon maintaining the former against the aggressions of the latter, and held up the bug bear of disunion, threatened by the slavery extensionists, to the scorn and contempt it deserves.
He spoke in Dearborn Park, and was listened to by a very large audience. The speech was one that did him eminent credit, and which cannot fail to produce a telling effect upon the political sentiment of Chicago. The exposure of the fallaciousness of the position taken by Mr. Fillmore in his Albany speech  was timely and effective; and his refutation of the charge of sectionalism, so flippantly made by the slavery-extensionists against the Republican party, was full and able. Every point he touched upon was elucidated by the clearness of his logic, and with his keen blade of satire he laid bare the revolting features of policy of the pseudo-Democracy.