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The Royal Society: Science in the Making

Unpublished paper, 'On the development of certain infusoria' by J Samuelson

Reference number: AP/47/6

Date: 1865

Description

Samuelson aims to account for the successive appearance, in organic infusions, of what seem to be distinct species of protozoa rising in the developmental scale. He commences with some general remarks on the origin of these animalcules, and states his disbelief in spontaneous generation as it is understood by Pouchet and his disciples.

Marked on front as 'Archived Dec 1865'. Includes one page of figures of development of protozoa.

Subject: Biology / Microbiology

Received 8 November 1865. Read 7 December 1865. Communicated by William Crookes.

Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 14 of the Proceedings of the Royal Society as 'On the development of certain infusoria'.

Reference number
AP/47/6
Earliest possible date
1865
Physical description
Ink on paper
Page extent
13 pages
Format
Drawing
Manuscript

Creator name

J Samuelson

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Citation

J Samuelson, Unpublished paper, 'On the development of certain infusoria' by J Samuelson, 1865, AP/47/6, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/ap_47_6/unpublished-paper-on-the-development-of-certain-infusoria-by-j-samuelson, accessed on 16 August 2026

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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is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.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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