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| | Photography at a Crossroads: Science News Online, Nov. 23, 2002 (Site not responding. Last check: 2007-11-04) |
 | | It might be the lost photograph, she wrote, but unfortunately, the image of Le Gras appeared to have faded away. |
 | | The center, which was renovating its lower two floors, planned to build a special new display for the heliograph. |
 | | But since Flukinger and his staff didn't know the chemical makeup of the heliograph, they weren't sure what kinds of lighting, environments, and cases might be appropriate. |
| www.sciencenews.org /articles/20021123/bob10.asp (2605 words) |
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