. An expedition through the Yukon district [microform]. Geology; Glaciers; Cryptogams; Botany; Géologie; Glaciers; Cryptogames; Botanique. II--' >' o >. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hayes, Charles Willard, 1859-1916; Cummings, Clara E. (Clara Eaton), 1855-1906. Washington : National Geographic Society

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Keywords: ., bookcentury1800, bookdecad, booksubjectbotany, booksubjectgeology