File:1911 Britannica-Argon-A. Schuster.png

1911_Britannica-Argon-A._Schuster.png(439 × 142 pixels, file size: 48 KB, MIME type: image/png)

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Description
English: Argon spectrum at atmospheric pressure recorded by Arthur Schuster.
Illustration from 1911 Encyclopædia Britannica, article Argon.
Date
Source Encyclopædia Britannica Eleventh Edition, Vol. 2, Page 477
Author Encyclopædia Britannica, 1911

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Public domain 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.

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current22:45, 10 January 2013Thumbnail for version as of 22:45, 10 January 2013439 × 142 (48 KB)Clarice Reis (talk | contribs)User created page with UploadWizard

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