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Description

Handwritten instructions on the use of the sextant for astronomical observations at sea, entitled "memos", signed and dated by Basil Hall. Detailed cleaning instructions, pairing with telescope, handling and reduction of errors in reading.

Reference number
HS/19/222
Earliest possible date
24 April 1833
Physical description
Ink on paper
Page extent
12 ff.
Format
Manuscript

Creator name

Basil Hall

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Citation

Basil Hall, Instructions on use of sextant, by Basil Hall, 24 April 1833, HS/19/222, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/hs_19_222/instructions-on-use-of-sextant-by-basil-hall, accessed on 16 February 2026

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