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Paper, 'Observations on the Hirudo complanata, and the Hirudo stagnalis, now formed into a distinct genus under the name, Glossiphonia' by Dr [James Rawlins] Johnson

Reference number: PT/11/26

Date: 18 June 1817

Description

Illustrations for this paper have been separated from the manuscript and are found at PT/73/6/20.

Subject: Zoology

Published in Philosophical Transactions as 'Observations on the Hirudo complanata, and Hirudo Stagnalis, now formed into a distinct genus under the name, Glossopora'.

Written by Johnson in London. Communicated by Sir Everard Home. Read 26 June 1817.

Abstract published in Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society of London], Volume 2, 1833.

Reference number
PT/11/26
Earliest possible date
18 June 1817
Physical description
Ink on paper
Page extent
11 pages
Format
Manuscript

Creator name

James Rawlins Johnson

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Citation

James Rawlins Johnson, Paper, 'Observations on the Hirudo complanata, and the Hirudo stagnalis, now formed into a distinct genus under the name, Glossiphonia' by Dr [James Rawlins] Johnson, 18 June 1817, PT/11/26, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/pt_11_26/paper-observations-on-the-hirudo-complanata-and-the-hirudo-stagnalis-now-formed-into-a-distinct-genus-under-the-name-glossiphonia-by-dr-james-rawlins-johnson, accessed on 16 November 2025

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  • Philosophical Transactions

    The 'Philosophical Transactions' collection comprises manuscript versions of papers published in The Philosophical Transactions of the Royal Society, the world’s first and longest continuously running journal dedicated to science.

    Dates: 1802 - 1865

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