Manuscript entitled: "Catalogue of the Apparatus of Philosophical Instruments, in the Collection of Her Late Majesty Queen Charlotte, at the Observatory at Richmond in Surrey"
Letter from D. Gardmen to unknown (presumably Hardwick) offering contract for gravel paths and suggesting a type of stove for the new station
Sketch of an apparatus for advancing stereotype frames of the Difference Engine by cranks and backing them by weights. Superseded. Plan, elevation.