Statistics for occurrence #1 of “lower Mississippi” in entry spain of Harper's Encyclopedia of United States History:

...it at New Orleans for three years, at the end of which period either this privilege was to be continued, or an equivalent establishment was to be assigned them at some other convenient point on the lower Mississippi . Neither party was to make alliances with the Indian tribes living within the territories of the other, nor was either party to allow its Indians to carry hostilities into the territories of the ot...
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