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Visual Evidence


Photo 3: Edison staff members at work in the chemistry laboratory, 1910.

[Graphic] Photo 3 with link to higher quality photo.
(Photo: Edison National Historic Site)

It was in this lab that Edison's team of workers tested hundreds of chemicals for use in such inventions as the storage battery and the improved phonograph record.

1. What does the photo suggest about the laboratory complex?

2. What does the photo suggest about the people who worked there?

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