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The Royal Society: Science in the Making

Letter, from William Derham to Hans Sloane, dated at Upminster

Reference number: EL/D1/47

Date: 03 January 1697

Description

Observations of the weather in Upminster, Essex, and in particular, measuring the height of mercury in the barometer by a circle on one of the weather-plates
Explanations of a table are given but the table is no longer attached (Printed in 'Philosophical Transactions', vol 20, no 237, p 45)
Figure of the circle and ruler with teeth and figures showing the quantity of rain are attached
Read to the Royal Society on 19 January 1697

Reference number
EL/D1/47
Earliest possible date
03 January 1697
Page extent
4 pages
Format
Manuscript
Also available on Early Modern Letters Online
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Creator names

William Derham

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William Derham

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Citation

William Derham, William Derham, Letter, from William Derham to Hans Sloane, dated at Upminster, 03 January 1697, EL/D1/47, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/el_d1_47/letter-from-william-derham-to-hans-sloane-dated-at-upminster, accessed on 13 May 2026

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  • Early Letters

    The archival collection known as 'Early Letters' is composed of original manuscript letters sent to, or collected by, the Royal Society from English and foreign correspondents.

    Dates: 1613 - 1740

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