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Paper, 'Description of an improved hygrometer' by Thomas Jones

Reference number: AP/10/8

Date: 20 February 1825


Jones describes the design and construction of his improvement on a hygrometer, improving the ease and accuracy with which measurements of the temperature of condensation can be taken.

An ink inscription top of first page reads 'JFWH [John Frederick William Herschel]. No 59. Two written leaves & a drawing'. [No drawing present.]

Subject: Scientific Instruments

Communicated by Capt H [Henry] Kater on 1 June 1825. Read to the Royal Society on 16 June 1825.

This paper was published in the 1826 volume of Philosophical Transactions as 'Description of an improved hygrometer'.

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

Reference number
Earliest possible date
20 February 1825
Physical description
Ink on paper
Page extent
4 pages

Creator name

Thomas Jones

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Thomas Jones, Paper, 'Description of an improved hygrometer' by Thomas Jones, 20 February 1825, AP/10/8, The Royal Society Archives, London,, accessed on 21 February 2024

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    Dates: 1768-1989

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is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.

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