Letter, from de Cocherel to Henry Oldenburg, dated at Rouen

Reference number: EL/C1/90

Date: 22 April 1669

Description

Autograph letter
De Cocherel provides information about a person who has increased the firing range of a cannon and about a person's theory for determining longitude by astronomical observations. De Cocherel asks if the Royal Society is willing to purchase either of these ideas. He also asks for a map of Jamaica
Oldenburg has written a note on the back of the letter about sea-thrushes and sea-larks found between Ireland and Scotland

Reference number: EL/C1/90
Earliest possible date: 22 April 1669
Page extent: 4 pages
Format: Manuscript
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Citation

Letter, from de Cocherel to Henry Oldenburg, dated at Rouen, 22 April 1669, EL/C1/90, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/el_c1_90/letter-from-de-cocherel-to-henry-oldenburg-dated-at-rouen, accessed on 11 March 2026

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https://makingscience.royalsociety.org/items/el_c1_90/letter-from-de-cocherel-to-henry-oldenburg-dated-at-rouen

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Hierarchy

This item is part of:

'Early letters': letters from correspondents in natural philosophy sent to the Royal Society and its Fellows
1613-1740 Reference number: EL
Early Letters C1
1663-1701 Reference number: EL/C1

Related Fellows

Henry Oldenburg
Recipient

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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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