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 John Backhouse to his sister describing the opening train on the Stockton & Darlington Railway
Stepping No. 1 on or in central wheels. Figure 1. Figure 2. Various unnumbered elevations, plans and details.
Sketches of mill used for arranging operations on the engine of four wheels in each cage from April 1836 - August 1837.
Elevation of arrangement 13 with some of the driving and directive. Elevation includes section of a barrel '65 bands 80 verticals'.
Sketch of an apparatus for advancing stereotype frames of the Difference Engine by cranks and backing them by weights. Superseded. Plan, elevation.
First sketch of all the parts in plan of the right half to middle group of General Plan 28. Plan, elevation.