RGO Archives/RGO 4 contains:
<-- See earlier
313	Warrant from Duke of Newcastle
314	Correspondence
315	Solutions to mathematical problems
316	Supplement to star catalogue
317	Book list of scientific and astronomical works
318	Records of instrument adjustments
319	Horologemetria
320	Miscellaneous papers
321	Log book of voyage to Barbados
322	Rating of longitude watches on HMS 'Adventure'
323	Observations at Barbados
See later -->

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Papers of Nevil Maskelyne

Title	Records of instrument adjustments
Reference	RGO 4/318
Covering Dates	circa 1766-circa 1780
Extent and Medium	1 volume

Content and context

A book for recording adjustments to instruments, with instructions, remarks and calculations. The volume includes notes on the magnifying power of the 46-inch achromatic telescope and the times taken for stars to pass through its field of vision; a plan for a meridian mark; the rate of the transit clock, 1766-1771; various parts to star catalogues; finding the right ascensions of stars; observations, 31 July - 3 November 1768; and solutions to hypothetical astronomical problems.

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