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 Name                           Last modified      Size  
 Parent Directory                                    -   
 figure-2.pdf                   2021-03-18 12:44  258K  
 figure-3.pdf                   2021-03-18 12:44  231K  
 report-thumb.jpg               2021-03-18 12:44   11K  
 report.pdf                     2021-03-18 12:44   27M

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URL: https://pubs.usgs.gov/of/1951/0091/
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