Paper, 'A further account of a new machine called the marine surveyor, designed for the mensuration of the way of a ship at sea, more correctly than by the log, at present in use, or any other method hitherto invented for that purpose' by Henry de Saumarez
Reference number: CLP/7ii/11
Date: 1729

Description
De Saumarez presents an explanation of experiments made using the marine surveyor on the lake in St James's Park [London], on a voyage to the Netherlands and a demonstration in fron ot notable individuals in a canal in the Hague. Identifies Molyneux as a patron. Includes three pages of figures of various instruments used for measuring the tides, including de Saumarez's marine surveyor.
Subject: Scientific apparatus and instruments / Navigation
Published in Philosophical Transactions as 'A further account of a new machine, called the marine surveyor, designed for the mensuration of the way of a ship at sea, more correctly than by the log, at present in use, or any other method hitherto invented for that purpose. By Mr. Henry De Saumarez, of the Island of Guernsey, part of His Majesty's antient Dutchy of Normandy'
- Reference number
- CLP/7ii/11
- Earliest possible date
- 1729
- Physical description
- Ink on paper
- Page extent
- 13 pages
- Format
- Manuscript
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Paper, 'A further account of a new machine called the marine surveyor, designed for the mensuration of the way of a ship at sea, more correctly than by the log, at present in use, or any other method hitherto invented for that purpose' by Henry de Saumarez, 1729, CLP/7ii/11, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/clp_7ii_11/paper-a-further-account-of-a-new-machine-called-the-marine-surveyor-designed-for-the-mensuration-of-the-way-of-a-ship-at-sea-more-correctly-than-by-the-log-at-present-in-use-or-any-other-method-hitherto-invented-for-that-purpose-by-henry-de-saumarez, accessed on 10 February 2025
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Related Publications
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III. A further account of a new machine, called the marine surveyor, designed for the mensuration of the way of a ship at sea, more correctly than by the log, at present in use, or any other method hitherto invented for that purpose. By Mr. Henry De Saumarez, of the Island of Guernsey, part of His Majesty's antient Dutchy of Normandy External link, opens in new tab.
Date: 31st December 1730
DOI: 10.1098/rstl.1729.0010
Related Records
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Paper, table showing the tides of the River Thames [London] using the marine surveyor by Henry de Saumarez
Reference number: CLP/7ii/10
Hierarchy
This item is part of:
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Classified papers: volume 7ii concerning 'Architecture, Ship-building, Geography, Navigation, Voyages, Travels'
1721-1739 Reference number: CLP/7ii
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Classified Papers
Dates: 1592-1741
The 'Classified Papers' of the Royal Society are papers from British and international natural philosophers and scholars categorised according to subject areas.View collection