File:EB1911 Tunicata - branchial sac of Ascidia.jpg

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Description
English: A, Part of branchial sac of Ascidia from inside. B, Transverse section of same. A and B are drawn to different scales. See legend below.
Date published 1911
Source “Tunicata,” Encyclopædia Britannica (11th ed.), v. 27, 1911, p. 381, fig. 7.
Author From Herdman, “ChallengerReport.
Permission
(Reusing this file)
Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.
English: Legend:
tr, Transverse vessel. lv, Fine longitudinal vessels.
cd, Connecting duct. p, p′ Papillae.
hm, Horizontal membrane. sg, Stigmata.
il, Internal longitudinal bar.

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current20:56, 12 July 2019Thumbnail for version as of 20:56, 12 July 2019549 × 606 (119 KB)Library Guy (talk | contribs){{Information |description ={{en|1=A, Part of branchial sac of ''Ascidia'' from inside. B, Transverse section of same. A and B are drawn to different scales. See legend below.}} |date =published 1911 |source =“Tunicata,” ''Encyclopædia Britannica'' (11th ed.), v. 27, 1911, p. 381, fig. 7. |author =From Herdman, “''Challenger''” ''Report''. |permission ={{PD-Britannica}} }} {{en|Legend:}} {| |-valign="top" |''tr'',||Transverse vessel.|| ||''lv'',||Fine longit...

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