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RGO Archives/RGO 35 contains:
<-- See earlier
84 Letter from Dr and Mrs Harvey
85 Letter from Ann Maskelyne
86 Letter from Lady Clive
87 Letter from Margaret Maskelyne
88 Letter from James Maskelyne
89 Instructions for measuring latitude
90 List of telescopes
91 Letter to James Stuart Mackenzie
92 Letter to Charles Hutton
93 Letter to George Atwood
94 Letter to Francis Wingrave
See later -->
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Photographs and Photocopies

Title Instructions for measuring latitude
Reference RGO 35/89
Extent and Medium 7 pages
Content and context

An undated photostat of a set of detailed instructions sent by Nevil Maskelyne to Charles Mason and Jeremiah Dixon in 'Pennsilvania' (Pennsylvania), titled 'Instructions for measuring a degree of latitude there', dated 8 November 1765.

Further information

The copy was made from the microfilm of the Mason-Dixon Line Journal, RGO 35/175.

No further on-line information.

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