The Committee, consisting of Mr. Wadsworth, Mr. Irwine and Mr. White, to whom was referred the petition of the French and American inhabitants of Post St. Vincent's and the Illinois, by their agent, Mr. Tardiveau, beg leave to report, that as there is much uncertainty about the possessions of the inhabitants of the country upon the Wabash and Mississippi Rivers, and the quantities of land that they may be entitled respectively to hold and enjoy, by rights acquired before they became subjects of