Geological map of the United States and British North America, constructed from the most recent documents & unpublished materials, for Keith Johnston's Physical atlas by Professor H.D. Rogers, Boston, U.S., 1855. Engraved & printed in colours by W. & A.K. Johnston. William Blackwood & Sons, Edinburgh & London. (1856)
full_title
Geological map of the United States and British North America, constructed from the most recent documents & unpublished materials, for Keith Johnston's Physical atlas by Professor H.D. Rogers, Boston, U.S., 1855. Engraved & printed in colours by W. & A.K. Johnston. William Blackwood & Sons, Edinburgh & London. (1856)
Full Title
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