The first speaker introduced to the assembled multitude was the ``Lone Star of Illinois,'' Hon. Mr. Lincoln. He was received with three hearty cheers, and delivered an eloquent and patriotic speech on some of the principles of the Whig party and the standard-Page 476 bearers they had selected to carry out their measures. He referred to the history of James K. Polk's administration---the abuse of power which characterized it---the high-handed and despotic exercise of the veto power, and the utter disregard of the will of the people, in refusing to give assent to measures which their representatives passed for the good and prosperity of the country. The manner in which the present Executive had carried on the Mexican war should condemn it and the Locofoco party before the whole people. He did not believe with many of his fellow citizens that this war was originated for the purpose of extending slave territory, but it was his opinion, frequently expressed, that it was a war of conquest brought into existence to catch votes. Admitting, however, that the disputes between Mexico and this country could not have been settled in an amicable manner---admitting that we went into the battle field as the last resort, with all the principles of right and justice on our side, why is it that this government desires a large sum of money to gain more territory than will secure ``indemnity for the past and security for the future?'' During the whole war this was the stereotyped motto of the administration; but when the treaty was sent to the Senate, the Executive not only included enough of territory for this purpose, but actually extended the boundaries and made an agreement to pay the Mexican government $15,000,000 for the additional territory. This subject demanded attention, and, although he had means of information, it had never been satisfactorily explained to him. Mr. Lincoln referred to other topics in an eloquent manner, and concluded with a few patriotic remarks on the character and long services of the Whig candidates.