File:Farmers of forty centuries - recently removed canal mud, charged with large snail shells.jpg

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English: China: The recently removed canal mud, in the upper section of the illustration, is heavily charged with large snail shells. The lower section shows the shells in the soil of a recently spaded field.
Date published 1911
Source F. H. King, Farmers of forty centuries, 1911, p. 174.
Author Unknown photographerUnknown photographer
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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:Farmers_of_forty_centuries_-_recently_removed_canal_mud,_charged_with_large_snail_shells.jpg

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current17:27, 5 October 2019Thumbnail for version as of 17:27, 5 October 20191,474 × 1,664 (688 KB)Bob Burkhardt{{Information |description ={{en|1=China: The recently removed canal mud, in the upper section of the illustration, is heavily charged with large snail shells. The lower section shows the shells in the soil of a recently spaded field.}} |date =published 1911 |source =F. H. King, ''Farmers of forty centuries'', 1911, p. 174. |author ={{Unknown|Photographer}} |permission ={{PD-1923}} }} 174 Category:Mud [[Category:...