rich territories of Mexico.

Efforts had (in 1827-1829) been made to purchase from Mexico the domain
which was known as Texas. They had failed. But already a part of Texas
had been settled by adventurous Americans under Mexican grants and
otherwise; and General Sam Houston, an adherent of the Slave Power,
having become a leading spirit among them, fomented a revolution. In
March, 1836, Texas, under his guidance, proclaimed herself a Republic
independent of Mexico.

The War that ensued between Texas and Mexico ended in the flight of the
Mexican Army and the capture of Santa Anna at San Jacinto, and a treaty
recognizing Texan independence. In October, 1836, General Houston was
inaugurated President of the Republic of Texas. Close upon this
followed (in August, 1837) a proposition to our Government from the
Texan envoy for the annexation of Texas to the United States. President
Van Buren declined the offer. The Northern friends of Freedom were as
much opposed to this annexation project as the advocates of Slavery were
anxious for it. Even such conservative Northern Statesmen as Daniel
Webster strongly opposed the project. In a speech delivered in New York
[1837], after showing that the chief aim of our Government in the
acquisition of the Territory of Louisiana was to gain command of the
mouths of the great rivers to the sea, and that in the acquisition of
the Floridas our policy was based on similar considerations, Mr. Webster
declared that "no such necessity, no such policy, requires the
annexation of Texas," and that we ought "for numerous and powerful
reasons to be content with our present boundaries. He recognized that
Slavery already existed under the guarantees of the Constitution and
those guarantees must be fulfilled; that "Slavery, as it exists in the
States, is beyond the power of Congress. It is a concern of the States
themselves," but "when we come to speak of admitting new States, the
subject assumes an entirely different aspect. Our rights and our duties
are then both different. The Free States, and all the States, are then
at liberty to accept or to reject;" and he added, "In my opinion the
people of the United States will not consent to bring into the Union a
new, vastly extensive and Slaveholding country, large enough for a half
a dozen or a dozen States. In my opinion, they ought not to consent to
it."

Farther on, in the same speech--after alluding to the strong feeling in
the Northern