This is the second edition, with the 1855 copyright date and no other date on the map. There are small changes in the main map (El Paso, Texas and Nephi, Utah are added, as well as additional Pacific railroad routes) but the inset map of the Gadsden Purchase and the untitled map of the U.S. are largely the same. Map is full color by state, folded into dark gray cloth covers 15x9 with "Nebraska And Kansas" stamped in gilt, advertisement for Colton on inside front cover. Relief shown by hachures.
note
This is the second edition, with the 1855 copyright date and no other date on the map. There are small changes in the main map (El Paso, Texas and Nephi, Utah are added, as well as additional Pacific railroad routes) but the inset map of the Gadsden Purchase and the untitled map of the U.S. are largely the same. Map is full color by state, folded into dark gray cloth covers 15x9 with "Nebraska And Kansas" stamped in gilt, advertisement for Colton on inside front cover. Relief shown by hachures.
Note
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