File:EB1911 Sponges - Spicules of Calcareous Sponges.jpg

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Summary

Description

English: Spicules of calcareous sponges.

Date

published 1911

Source

“Sponges,” Encyclopædia Britannica (11th ed.), v. 25, 1911, p. 722, fig. 24.

Author

After E. A. Minchin. From Lankester's Treatise on Zoology.

Permission
(Reusing this file)

This image comes from the 13^th 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.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	16:29, 2 October 2018		738 × 671 (141 KB)	Bob Burkhardt	{{Information \|description ={{en\|1=Spicules of calcareous sponges.}} \|date =published 1911 \|source =“Sponges,” ''Encyclopædia Britannica'' (11th ed.), v. 25, 1911, p. 722, fig. 24. \|author =After E. A. Minchin. From Lankester's ''Treatise on Zoology''. \|permission ={{PD-Britannica}} }} Category:Sponge spicules

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