File:Heilmann Fig61.jpg
The author died in 1946, so 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 75 years or fewer.
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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 | Dimensions | User | Comment |
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16:31, 5 February 2011 | 845 × 556 (175,444 bytes) | w:en:Ferahgo the Assassin (talk | contribs) | {{Information |Description = Gerhard Heilmann's comparative illustrations of the embryos and adult life drawings of a crocodile (C), common fowl (F), lizard (L) and tern (T). |Source = The Danish book ''Vor Nuvaerende Viden om Fuglenes Afstam |