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![[Graphic] Photo 2a with link to higher quality photo.](25images/25img2abh.jpg "[Graphic] Photo 2a with link to higher quality photo.") (Photo: Edison National Historic Site) 
(Photo: Edison National Historic Site)  1. Compare Photo 2a of the laboratory complex in the 1890s with Photo 2b of the complex as it appeared in 1929. How had the area surrounding the complex changed? 2. Try to match the buildings in Photos 2a and 2b with those shown in Maps 2 and 3. * The images on the screen have a resolution of 72 dots per inch (dpi), and therefore will print poorly. You can obtain high resolution versions of Photo 2a and Photo 2b, but be aware that they will take about 45 seconds and 75 seconds, respectively, to load with a 28.8K modem.
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