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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)

All of the figures except No. 4 are from models or combinations of models and graphic reconstructions of one embryo No. 460, Carnegie Collection. The illustrations are mainly the work of Mr. C. W. Shepard and Mr. J. F. Didusch.

Cartilage is colored blue, except figure 4, precartilage green, nerves yellow, muscles red; the blastema remains uncolored. All magnifications refer to the original published image size.

Links: Plate 1 | Plate 2 | Plate 3 | Plate 4 | Plate 5 | Abbreviations | 1920 Lewis | Carnegie Embryo 460 | Carnegie stage 20 | Week 8 | Volume IX | Contributions to Embryology | Skull Development

Reference

Lewis WH. The cartilaginous skull of a human embryo twenty-one millimeters in length. (1920) Contrib. Embryol., Carnegie Inst. Wash. Publ. 272, 9: 299-324.

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Cite this page: Hill, M.A. (2024, April 18) Embryology Lewis1920. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Template:Lewis1920

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