„Mammoth Cave by flash light“ – Frances Benjamin Johnston (1892)

 Mammoth cave by flash=light : reprinted from Demorest’s Family Magazine by Johnston, Frances Benjamin, 1864-1952, author Publisher [Louisville and Nashville Railroad Company] Dieses interessante Dokument aus der Frühgeschichte der Höhlenfotografie ist seit 2017 online verfügbar. Frances Benjamin Johnston war … Weiterlesen →

How Did Max Kämper and Ed Bishop Survey Mammoth Cave?

How Did Max Kämper and Ed Bishop Survey Mammoth Cave? Rick Olson, Bernd Kliebhan & Rick Toomey (2013): How Did Max Kämper and Ed Bishop Survey Mammoth Cave? http://digitalcommons.wku.edu/cgi/viewcontent.cgi?article=1061&context=mc_reserch_symp In May 2018 Rick Olson, Chuck DeCroix, Stan Sides and myself … Weiterlesen →