In the month of May, 1836, Santa Anna acknowledged by a treaty with the Texan authorities in the most solemn form "the full, entire, and perfect independence of the Republic of Texas." It is true he was then a prisoner of war, but it is equally true that he had failed to reconquer Texas, and had met with signal defeat; that his authority had not been revoked, and that by virtue of this treaty he obtained his personal release. By it hostilities were suspended, and the army which had invaded Texas under his command returned in pursuance of this arrangement unmolested to Mexico. From the day that the battle of San Jacinto was fought until the present hour Mexico has never possessed the power to reconquer Texas. In the language of the Secretary of State of the United States in a dispatch to our minister in Mexico under date of the 8th of July, 1842-- Mexico may have chosen to consider, and may still choose to consider, Texas as having been at all times since 1835, and as still continuing, a rebellious province; but the world has been obliged to take a very different view of the matter. From the time of the battle of San Jacinto, in April, 1836, to the present moment, Texas has exhibited the same external signs of national independence as Mexico herself, and with quite as much stability of government. Practically free and independent, acknowledged as a political sovereignty by the principal powers of the world, no hostile foot finding rest within her territory for six or seven years, and Mexico herself refraining for all that period from any further attempt to reestablish her own authority over that territory, it can not but be surprising to find Mr. De Bocanegra the secretary of foreign affairs of Mexico complaining that for that whole period citizens of the United States or its Government have been favoring the rebels of Texas and supplying them with vessels, ammunition, and money, as if the war for the reduction of the Province of Texas had been constantly prosecuted by Mexico, and her success prevented by these influences from abroad. In the same dispatch the Secretary of State affirms that--