Such was the true basis of that extraordinary show of popularity which Jackson's second election as President indicated. Accordingly, his first measures were directed to the acquisition of Texas. These, as Mr. Adams said at the time, "were kept profoundly secret," but at this day they are clear and evident. The Florida treaty was accepted with approbation and joy by the government and people of the United States, under the administration of Mr. Monroe. But the extension of its boundaries to the Colorado, which had been hoped for during the negotiation of that treaty between Mr. Adams and Onis, was not attained. Afterwards, during the Presidency of Mr. Adams, when every engine in the South and West was set at work to depreciate his character, and destroy his popularity, John Floyd, of Virginia, in an address to his constituents, attributed the relinquishment of our claim to Texas to him, and said he had thus deprived the South of acquiring two or more slave states. The same charge was brought against him by Thomas H. Benton, of Missouri, who afterwards, when apprized of the facts, openly acknowledged, in the Senate of the United States, that it was unjust, and an error. The calumny had the effect for which it was fabricated; for Mr. Adams, out of respect for those through whose constitutional influence he had abandoned that claim, disdained to defend himself by publishing the truth. The facts were, that slavery not being then permitted in Mexico, and the project of introducing it, by the annexation of Texas, not being yet developed, Mr. Adams deemed the extension of the territory of the United States to the Colorado so important, that when Onis absolutely refused to accede, he declined further negotiation, declaring that he would not renew it on any other ground. He did not yield until those deeply interested in obtaining Florida had, by their urgency, persuaded him to treat on the condition of not including Texas. Although desirous, from general considerations of national interest and policy, to obtain that province, it was well known that he would not engage in any conspiracy to wrest it from Mexico. His character and firmness in that respect lessened his popularity in the Southern States, and excited an inordinate zeal for Jackson.