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 Name                           Last modified      Size  
 Parent Directory                                    -   
 report-thumb.jpg               2020-12-30 17:30   17K  
 plate-1.pdf                    2020-12-30 17:30  242K  
 report.pdf                     2020-12-30 17:30  4.3M

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/1951/0013/
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