File:PSM V85 D320 Eight different races of paramecium laid out horizontally.jpg

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English: Eight different races of paramecium laid out horizontally
Date
Source Popular Science Monthly Volume 85
Author Unknown authorUnknown author

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Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:PSM_V85_D320_Eight_different_races_of_paramecium_laid_out_horizontally.jpg

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1 September 1901Gregorian

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current08:08, 5 April 2017Thumbnail for version as of 08:08, 5 April 20171,685 × 1,535 (218 KB)IneuwUser created page with UploadWizard