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File:The primitive streak and notochordal canal in Chelonia (Plate V) BHL4780746.jpg

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PLATE V.
Fig. 20. The sixty-fourth section behind the dorsal notochordal opening of a. See Diagram I., page 6. x 240.
Fig. 21. The one hundred and twelfth section behind the dorsal notochordal opening of a. x 240.
Fig. 22. The region marked sul. pr. p. in Fig. 17, more highly magnified. x 420.
Fig. 23. The region marked sul. pr. p. in Fig. 18, under higher magnification, x 420.
Fig. 24. Section cut in the direction of the line 24-24, Fig. 5. The ectoderm of a is split at the axis of a. The asterisk marks the point of separation between the entoderm of a, and that of β. x 73.
Fig. 25. Section along the line 25-25, Fig. 5. The ectoderm of ais split at the axis of a. One half of the entoderm of a has disappeared together with the anterior floor of β. x 73.
Note. — By an oversight a' and β' have been interchanged in position in this Figure.

Fig. 26. Section, the position of which is shown by the line 26-26, Fig. 5. The ectoderm of a is split at the axis of a. Part of the entoderm of a. and the anterior part of the floor of the notochordal canal of β, have broken through into the yolk. x 73.
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Source https://www.biodiversitylibrary.org/pageimage/4780746 The primitive streak and notochordal canal in Chelonia / by Gertrude Crotty Davenport. Prepared under the direction of Edward Laurens Mark.
Author Davenport, Gertrude Anna Crotty
Page ID
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4780746
Item ID
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26729 (Find related Wikimedia Commons images)
Title ID
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5777 (Find related Wikimedia Commons images)
Page numbers
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Plate V
BHL Page URL
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https://www.biodiversitylibrary.org/page/4780746
DOI
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10.5962/bhl.title.5777
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Illustration
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Date/TimeThumbnailDimensionsUserComment
current21:02, 8 April 2024Thumbnail for version as of 21:02, 8 April 20242,174 × 3,571 (849 KB)Rasbak (talk | contribs)
15:01, 19 November 2015Thumbnail for version as of 15:01, 19 November 20152,174 × 3,571 (484 KB)Fæ (talk | contribs)== {{int:filedesc}} == {{BHL | source = http://www.biodiversitylibrary.org/pageimage/4780746 | description = The primitive streak and notochordal canal in Chelonia / by Gertrude Crotty Davenport. Prepared under the direction of Edward Laurens Mark. |...

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