'Account of a new Machine call'd the marine Surveyor contriv'd for the Mensuration of the Way of a Ship in the Sea more correctly than by the Log or any other method hitherto us'd for that Purpose. By Mr Henry de Saumarez of the Island of Guernsey; together with the Several Testimonials Setting forth the usefulness of his said Invention'

'Account of a new Machine call'd the marine Surveyor contriv'd for the Mensuration of the Way of a Ship in the Sea more correctly than by the Log or any other method hitherto us'd for that Purpose. By Mr Henry de Saumarez of the Island of Guernsey; together with the Several Testimonials Setting forth the usefulness of his said Invention', 1725, RBO/12/25, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/rbo_12_25/account-of-a-new-machine-calld-the-marine-surveyor-contrivd-for-the-mensuration-of-the-way-of-a-ship-in-the-sea-more-correctly-than-by-the-log-or-any-other-method-hitherto-usd-for-that-purpose-by-mr-henry-de-saumarez-of-the-island-of-guernsey-together-with-the-several-testimonials-setting-forth-the-usefulness-of-his-said-invention, accessed on 17 May 2025

https://makingscience.royalsociety.org/items/rbo_12_25/account-of-a-new-machine-calld-the-marine-surveyor-contrivd-for-the-mensuration-of-the-way-of-a-ship-in-the-sea-more-correctly-than-by-the-log-or-any-other-method-hitherto-usd-for-that-purpose-by-mr-henry-de-saumarez-of-the-island-of-guernsey-together-with-the-several-testimonials-setting-forth-the-usefulness-of-his-said-invention

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