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From Thomas Henry Huxley translation in Scientific Memoirs:<ref>Huxley TH. (1853). Scientific memoirs, selected from the transactions of foreign academies of science, and from foreign journals.  (1853).  Natural history. Henfrey, Arthur, ed. London (UK): Taylor and Francis. doi:10.5962/bhl.title.28029.</ref>
From Thomas Henry Huxley translation in Scientific Memoirs:<ref>Huxley TH. (1853). Scientific memoirs, selected from the transactions of foreign academies of science, and from foreign journals.  (1853).  Natural history. Henfrey, Arthur, ed. London (UK): Taylor and Francis. doi:10.5962/bhl.title.28029.</ref>


# [The] more general characters of a large group appear earlier in the embryo than the more special characters.
# More general characters of a large group appear earlier in the embryo than the more special characters.
# From the most general forms the less general are developed, and so on, until finally the most special arises.
# From the most general forms the less general are developed, and so on, until finally the most special arises.
# Every embryo of a given animal form, instead of passing through the other forms, rather becomes separated from them.
# Every embryo of a given animal form, instead of passing through the other forms, rather becomes separated from them.
Line 12: Line 12:




:'''Links:''' [[:File:Hilfer1990 Fig03.jpg|Fig - human ovum discovery]] | [[History - Embryologists|Embryologists]] | [[Embryology History]]
===Reference===
===Reference===
<references/>
<references/>

Latest revision as of 09:11, 7 April 2017

Karl von Baer (1792-1876)

University of Königsberg

Über Entwickelungsgeschichte der Thiere (On the Developmental History of Animals) 1828.

From Thomas Henry Huxley translation in Scientific Memoirs:[1]

  1. More general characters of a large group appear earlier in the embryo than the more special characters.
  2. From the most general forms the less general are developed, and so on, until finally the most special arises.
  3. Every embryo of a given animal form, instead of passing through the other forms, rather becomes separated from them.
  4. Fundamentally, therefore, the embryo of a higher form never resembles any other form, but only its embryo.


Links: Fig - human ovum discovery | Embryologists | Embryology History

Reference

  1. ↑ Huxley TH. (1853). Scientific memoirs, selected from the transactions of foreign academies of science, and from foreign journals. (1853). Natural history. Henfrey, Arthur, ed. London (UK): Taylor and Francis. doi:10.5962/bhl.title.28029.

Image from Wikimedia Commons, the free media repository.


Cite this page: Hill, M.A. (2024, May 5) Embryology Karl von Baer.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Karl_von_Baer.jpg

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