File:1911 Britannica - Anthraquinone.png
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Summary
| Description |
English: Illustration from 1911 Encyclopædia Britannica, article Anthraquinone. |
| Date | |
| Source |
 Encyclopædia Britannica Eleventh Edition, Vol. 2, Page 106 |
| Author | Encyclopædia Britannica, 1911 |
Licensing
|
This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:12, 15 February 2022 | | 477 × 50 (15 KB) | DivermanAU | remove fragments of text at top; improve contrast |
| 23:42, 15 August 2012 |  | 477 × 50 (15 KB) | Clarice Reis |
File usage
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