Unpublished paper, 'On the impregnation of the ovum in the Amphibia (second series) and on the nature of the impregnating influence' by George Newport
Reference number: AP/33/20
Date: 1851

Description
Newport begins by stating that, having given direct proof, in his former paper (see PT/40/9), that the spermatozoon is the impregnating agent, and also that the liquor seminis does not effect impregnation, he now proposes to detail some new experiments which bear on the views he then advanced; and especially with respect to the nature of the impregnating influence.
Second in a series on fertilisation. Withdrawn from the review committee by Newport in April 1852. Newport then revised that paper and resubmitted it in May 1852 (see PT/46/7).
Subject: Reproduction / Anatomy
Received and read 19 June 1851.
Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 6 of Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society] as 'On the impregnation of the ovum, in the amphibia (Second Series), and on the nature of the impregnating influence'.
- Reference number
- AP/33/20
- Earliest possible date
- 1851
- Physical description
- Ink on paper
- Page extent
- 77 pages
- Format
- Manuscript
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Citation
George Newport, Unpublished paper, 'On the impregnation of the ovum in the Amphibia (second series) and on the nature of the impregnating influence' by George Newport, 1851, AP/33/20, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/ap_33_20/unpublished-paper-on-the-impregnation-of-the-ovum-in-the-amphibia-second-series-and-on-the-nature-of-the-impregnating-influence-by-george-newport, accessed on 20 April 2025
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Related Publications
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On the impregnation of the ovum, in the amphibia (Second Series), and on the nature of the impregnating influence External link, opens in new tab.
Date: 31st December 1854
DOI: 10.1098/rspl.1850.0032
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Sperm-Force: Naturphilosophie and George Newport’s Quest to Discover the Secret of Fertilization External link, opens in new tab.
Author: Jennifer Coggon
Date: 13th February 2023
DOI: 10.1007/s10739-022-09696-3
Related Records
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Paper, 'On the impregnation of the ovum in the amphibia' by George Newport
Creator: George Newport Reference number: PT/40/9 -
Paper, 'On the impregnation of the ovum in the amphibia (second series, revised) and on the direct agency of the spermatozoon' by George Newport
Creator: George Newport Reference number: PT/46/7 -
Paper, 'Researches on the impregnation of the ovum in the amphibia; and on the early stages of development of the embryo (third series) by George Newport
Creator: George Newport Reference number: PT/49/2 -
Paper, 'On the impregnation of the ovum in the amphibia' by George Newport
Creator: George Newport Reference number: PT/40/9
Hierarchy
This item is part of:
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Archived papers: volume 33, scientific papers submitted the Royal Society unpublished or abstracted, 1849-1852
1849-1852 Reference number: AP/33
Related Fellows
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George Newport
Author
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Archived Papers
The 'Archived Papers' collection is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.
Dates: 1768 - 1989
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