[Law] Acts Passed By the Eleventh Congress of the United States. N.p., 1811. Three parts in one, comprising the first, second, and third sessions of Congress, of acts approved by President James Madison, including his proclamations regarding treaties between the government and Indian tribes in the Western territories, plus the opening of the first public building (a post office) in the Illinois Territory. 8vo. Disbound, several rear pages curled and torn.