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mous prohibition, slavery existed in a modified form throughout that vast territory wherever there was any considerable population. An act legalizing a sort of slavery by indenture was passed by the Indiana territorial Legislature in 1807, and this remained in force in the Illinois country after its separation. Another act providing for the hiring of slaves from Southern States was passed in 1814, for the ostensible reason that "mills could not be successfully operated in the territory for want of laborers, and that the manufacture of salt could not be successfully carried on by white laborers." Yet, as an unconscious satire upon such pretenses, from time to time the most savage acts were passed to prohibit the immigration of free negroes into the territory which was represented as pining for black labor. Those who held slaves under the French domination, and their heirs, continued to hold them and their descendants in servitude, after Illinois had become nominally a free territory and a free State, on the ground that their vested rights of property could not have been abrogated by the ordinance, and that under the rule of the civil law partus sequitur ventrem.
But this quasi-toleration of the institution was not enough for the advocates of slavery. Soon after the adoption of the State Constitution, which prohibited slavery "hereafter," it was evident that there was a strong under-current of desire for its introduction into the State. Some of the leading politicians, exaggerating the extent of this desire, imagined they saw in it a means of personal advancement, and began to agitate the question of a convention to amend the Constitution. At that time there was a considerable emigration setting through the State from Kentucky and Tennessee to Missouri. Day by day the teams of the movers passed through the Illinois settlements, and wherever they halted for rest and refreshment they would affect to deplore the short-sighted policy which, by prohibiting slavery, had prevented their settling in that be