The following bibliography has been generated by automated services. BHL uses taxonomic intelligence tools to locate, verify, and record scientific names located within the text of each digitized page in the BHL digital collection.
|Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869 / ;||1870||Washington :Government Printing Office,1870-1880.||1|
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