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 Name                           Last modified      Size  
 Parent Directory                                    -   
 plate-1.pdf                    2019-06-20 12:33  7.3M  
 plate-2.pdf                    2019-06-20 12:33  3.9M  
 report-thumb.jpg               2019-06-20 12:33   18K

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/1960/0030/
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