Observations on the North-American Land-Company : lately instituted in Philadelphia: containing an illustration of the object of the company's plan, the articles of association, with a succinct account of the states wherein their lands lie: to which are added, remarks on American lands in general, .. in two letters from Robert G. Harper. (printed, by H. L. Galabin, for C. Barrell and H. Servanté, American agents: sold also by J. Debrett; J. Johnson; and W. Richardson,, 1796)