File:PSM V41 D215 Living diatoms.jpg

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Description

Living diatoms

Date

1892

Source

Popular Science Monthly Volume 41

Author

Unknown author

Permission
(Reusing this file)

	This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information).
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Extracted image from book, to grayscale, cropped whitespace. Modifications made by Ineuw. The original can be found here: Popular Science Monthly Volume 41.

File history

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	Date/Time	Dimensions	User	Comment
current	20:03, 24 November 2015	851 × 854 (128 KB)	Ineuw	Cleaned image and improved contrast
	20:02, 24 November 2015	851 × 854 (133 KB)	Ineuw	Cleaned image and improved contrast
	20:32, 1 January 2011	875 × 840 (108 KB)	Ineuw	{{Information \|Description = Living diatoms \|Source = [http://www.archive.org/details/popularsciencemo41newy Popular Science Monthly Volume 41] \|Date = 1892 \|Author = Unknown \|Permission = {{PD-old}} \|other_versions
	19:39, 1 January 2011	875 × 840 (153 KB)	Ineuw	{{Information \|Description = Living diatoms \|Source = [http://www.archive.org/details/popularsciencemo41newy Popular Science Monthly Volume 41] \|Date = 1892 \|Author = Unknown \|Permission = {{PD-old}} \|other_versions