File:Farmers of forty centuries - recently removed canal mud, charged with large snail shells.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:27, 5 October 2019 | 1,474 × 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:... |
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