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Description

Sedgwick writes: 'The fertilised ovum of Peripatus capensis contains a central cavity traversed by a few strands of protoplasm. The protoplasm has a reticular or spongy structure, the reticulum being very close round the nucleus and much looser elsewhere. The strands of the reticulum are composed of an apparently perfectly homogeneous protoplasm. The nucleus is placed on one side of the ovum; it is a large body which varies very considerably in shape and structure in different ova. These variations no doubt represent different phases in the life-history of the nucleus. It has been impossible for me with the small number (ten) of unsegmented ova at my disposal to determine their sequence.'

Annotations in pencil and ink.

Subject: Morphology / Reproduction

Received 18 October 1885. Read 26 November 1885. Communicated by Michael Foster.

A version of this paper was published in volume 39 of the Proceedings of the Royal Society as 'On the fertilised ovum and formation of the layers of the South African peripatus'.

Reference number
PP/7/9
Earliest possible date
1885
Physical description
Ink and graphite pencil on paper
Page extent
21 pages
Format
Manuscript

Creator name

Adam Sedgwick

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Citation

Adam Sedgwick, Paper, 'On the fertilised ovum and formation of the layers of the South African peripatus' by Adam Sedgwick, 1885, PP/7/9, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/pp_7_9/paper-on-the-fertilised-ovum-and-formation-of-the-layers-of-the-south-african-peripatus-by-adam-sedgwick, accessed on 12 November 2024

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  • Proceedings Papers

    Dates: 1882 - 1894

    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.

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