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 Name                           Last modified      Size  
 Parent Directory                                    -   
 plate-1.pdf                    08-Sep-2011 13:21   13M  
 plate-2.pdf                    08-Sep-2011 13:21  7.9M  
 plate-1-thumb.jpg              09-Sep-2011 12:25  6.4K  
 plate-2-thumb.jpg              09-Sep-2011 12:26  6.5K

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U.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/of/1961/0169/
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