. A century of progress in the natural sciences, 1853-1953. Natural history -- History; Natural history. ^ ' A CENTURY OF PROGRESS IN THE NATURAL SCIENCES 1853-1953 PUBLISHED IN CELEBRATION OF THE CENTENNIAL OF THE CALIFORNIA ACADEMY OF SCIENCES /. California Academy of Sciences SAN FRANCISCO 1955. 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 California Academy of Sciences. San Francisco

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Keywords: ., bookcentury1900, bookpublishersanfran, booksubjectnaturalhistory