File:PSM V84 D537 Facts and factors of development fig13.jpg
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| Description | Fig. 13. Four cleavage stages of the sheep; pb, polar bodies. (After Assheton) | |||
| Date | ||||
| Source | Edwin Grant Conklin: Facts and factors of development. The Popular science monthly, Volume 84, p533. New York, Popular Science Pub. Co., June 1914. Online: archive.org. | |||
| Author | Edwing Grant Conklin after Assheton | |||
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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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:15, 22 March 2018 | | 723 × 760 (111 KB) | Ineuw (talk | contribs) | Cleaned image, enhanced contrast |
| 02:51, 19 March 2011 |  | 1,720 × 1,497 (307 KB) | Martin H. (talk | contribs) |
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