File:Figure 7 of Radio-active substances.png
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:26, 4 March 2016 | 1,647 × 504 (349 KB) | Cygnis insignis | {{Information |Description=Illustration from scan of Curie, Marie. Radio-active substances. London: Chemical News Office. 1904. Adjustments to original jp2 version of page: converted to greyscale and PNG, crop to content, black and white point levels t... |
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