Paper, 'On the presence and structure of Leydig's "frontal organ" in Lacertilia' by W [Walter] Baldwin Spencer
Reference number: PP/8/36
Date: 1886
Description
Baldwin writes: 'In 1872 Leydig described a structure in Lacerta agilis, L. muralis, L. vivipara,and Anguis fragilis, to which he gave the name of “frontal organ.” In the embryo, owing to its being deeply pigmented, it forms a prominent feature on the roof of the original forebrain in connexion with the pineal gland; in the adult it lies immediately beneath the skin, and, according to him and subsequent observers, completely separated from the brain.'
Annotations in pencil and ink throughout.
Subject: Zoology / Saurology
Received and read 10 June 1886.
A version of this paper was published in volume 40 of the Proceedings of the Royal Society as 'Preliminary communication on the structure and presence in sphenodon and other lizards of the median eye, described by von Graaf in Anguis fragilis'.
- Reference number
- PP/8/36
- Earliest possible date
- 1886
- Physical description
- Ink and graphite pencil on paper
- Page extent
- 11 pages
- Format
- Manuscript
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Citation
Walter Baldwin Spencer, Paper, 'On the presence and structure of Leydig's "frontal organ" in Lacertilia' by W [Walter] Baldwin Spencer, 1886, PP/8/36, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/pp_8_36/paper-on-the-presence-and-structure-of-leydigs-frontal-organ-in-lacertilia-by-w-walter-baldwin-spencer, accessed on 22 March 2025
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https://makingscience.royalsociety.org/items/pp_8_36/paper-on-the-presence-and-structure-of-leydigs-frontal-organ-in-lacertilia-by-w-walter-baldwin-spencer
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Related Publications
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XIV. Preliminary communication on the structure and presence in sphenodon and other lizards of the median eye, described by von Graaf in Anguis fragilis External link, opens in new tab.
Date: 31st December 1886
DOI: 10.1098/rspl.1886.0081
Hierarchy
This item is part of:
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Scientific papers published in the Proceedings of the Royal Society volume 40, 1886
1886 Reference number: PP/8
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Walter Baldwin Spencer
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Proceedings Papers
The archival collection known as 'Proceedings Papers' is comprised of manuscripts and occasional proofs of scientific papers sent to the Royal Society which were read before meetings of Fellows and printed in full in the Proceedings of the Royal Society.
Dates: 1882 - 1894
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