2Donaldson, Thomas C. , "The Public Lands of the United States", The North American Review, September,1881, No. 298, http:∥cdl. library. cornell. edu/moa/borowse. author/d. 103. html
3Gates, Paul W. , The Farmer's Age, Agriculture1815-1860 , M. E. Sharpe, Inc. , Armonk, New York,1960.
4Treat, Payson Jackson, The National Land System, 1785-1820 , first published in 1910, Reissued by Russell& Russell, A Division of Antheneum House, Inc. , New York, 1967.
5Hibbard, Benjamin Horace, A History of the Public Land Policy, The Macmillan Company, New York,1924.
6Farnam, Henry W. , Chapters in the History of Social Legislation in the United States to 1860 ,
