A group letters from Nevil Maskelyne to Jospeh Banks including information on the Royal Society meetings, Board of Longitude meetings, Herschel's Comet, a comet discovered by Miss Caroline Herschel, a possible discovery of a new planet, terrestrial refractions, organising for the Board of Longitude Committee meeting at Joseph Banks house, a mariner who is happy to make astronomical observations that might be useful to the Committee while he escorts convicts to Holland, an accoun of Mr de Starck of Bramerton, Norfolk, attempt to present his invention to the Board of Longitude; trials of Mr Weir's instrument, letter on the instruments to be sent to the North West coast of America for the Astronomers, a letter refering to Dr Waring's manuscripts and Mr Dolland's paper relating to his father's discovery of the achromatic telescope and a letter to Banks informing his that Nevil's sister, Lady Clive, has some dried Indian plants for Joseph Banks sent by Dr Heynes at Madras.

Administrative / biographical background
Nevil Maskelyne and Joseph Banks were both key members of the Board of Longitude.