Sketch showing the progress of the survey in section no. IX from 1849 to 1879.
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Sketch showing the progress of the survey in section no. IX from 1849 to 1879., map, 1879; [Washington, D.C.]. (texashistory.unt.edu/ark:/67531/metapth193363/: accessed September 23, 2018), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; crediting University of Texas at Arlington Library.