Embryology History - Hans Driesch
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Hans Adolf Eduard Driesch (1867 – 1941) was a German experimental embryology.
From 1891 to 1901 he worked in Naples at the Marine Biological Station. His experimental work was designed to establish a formulation for development and ended by adopting an Aristotlean teleological theory of entelechy.
- Links: sea urchin
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Driesch manipulating blastomeres of sea urchin eggs
Illustrations from H. Driesch (1892) showing effects of manipulating blastomeres of sea urchin eggs. His Figure 1 shows a normal 16-cell stage (copied from Selenka). Figure 2 shows a half-embryo from an 8-cell stage and Figures 3 and 4 half-embryos from a 16-cell stage. Figure 5 is a half-embryo at the blastula stage. These half-embryos developed into complete individuals. Figures 7 through 9 show blastulae in the process of dividing. These formed conjoined twins as shown in Figures 10 through 12. These results were interpreted as demonstrating regulative development.
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Cite this page: Hill, M.A. (2020, June 2) Embryology Embryology History - Hans Driesch. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Embryology_History_-_Hans_Driesch
- © Dr Mark Hill 2020, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G