Letter dated 10th June 1802 concerning correspondence with Mr Hitchins, and errors in the work of Mr Brinkley, whose letter to General Vallancy contained a mistake and General Vallancy wanted him to rectify it; returns Baron Zach’s chart of the tracks of Ceres & Pallas in the heavens; Board of Longitude refers to Mr Adam Johnson and his father’s method previously considered and rejected by the Board.

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