was, after all, too limited for the formation of many new Slave States, while the area for the building up of Free States was much larger. More territory for slavery was therefore needed to maintain the balance of power between the two sections.
At the same time the Mexican government, growing alarmed at the unruly spirit of the American colony in Texas, attached Texas to Coahuila, the two to form one state. The constitution of Coahuila forbade the importation of slaves; and in 1829 the Republic of Mexico, by the decree of September 15, emancipated all the slaves within its boundaries. Then the American Slave States found themselves flanked in the southwest by a power not only not in sympathy with slavery, but threatening to become dangerous to its safety. The maintenance of slavery in Texas, and eventually the acquisition of that country, were thenceforth looked upon by the slave-holding interest in this Republic as matters of very great importance, and the annexation project was pushed forward systematically.
First the American settlers in Texas refused to obey the Mexican decree of emancipation, and, in order to avoid an insurrection, the Mexican authorities permitted it to be understood that the decree did not embrace Texas. Thus one point was gained. Then the Southern press vigorously agitated the necessity of enlarging the area of slavery, while an interest in the North was created by organizing three land companies in New York, which used pre-
