Record

RefNoHS/18/17
LevelItem
TitleLetter, from James Thomas Walker to Sir John Herschel, dated at 1 Cromwell Road, South Kensington
CreatorJames Thomas Walker
Date15 December 1864
DescriptionAutograph letter signed by sender. Indian Triangulation chart showed progress to May 1862. Explains why arcs of meridians and parallels were chosen over diagonal braces. G. B. Airy's method of determining errors helped. Will take note and package from Maria [Herschel] to John Frederick William Herschel's son John.
LanguageEnglish
Extent5pp
FormatManuscript
Place origin1 Cromwell Road, South Kensington
AccessStatusOpen
URLDescriptionAlso available on Epsilon
URLhttps://epsilon.ac.uk/view/herschel/letters/Herschel7809
Fellows associated with this archive
CodePersonNameDates
NA6271Walker; James Thomas (1826 - 1896)1826 - 1896
NA8238Herschel; Sir; John Frederick William (1792 - 1871); astronomer1792 - 1871
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