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"
Drawing entitled 'Sectional Drawing for a Steel Protected Cruiser for Colonial Defence to be named'
Locking motions for carriage column.
Sketch of an apparatus for advancing stereotype frames of the Difference Engine by cranks and backing them by weights. Superseded. Plan, elevation.
Speculations on the driving and directive for the Difference Engine. Superseded. Arrangements.
Difference Engine wheels for driving the cranks which move the matrix frames. Superseded. Plan, elevation.
Speculations on the driving and directive of the Difference Engine. Superseded. Arrangement.
Motions of the printing apparatus
Motions of the stereotype frames
Circular motions of the calculating axes
Part of the Planing machine.
Motions of the stereotype frames
Untitled pencil layout, includes mill racks.
Directive. Difference Engine No. 2. [Genealogy]
Direct trains. Third edition [possibly version].
General trains to be used with Sheets 1 to 4 of the special trains on drawing paper.
Comparison of two modes of moving matrix frame.
Commencement of trains.
Complete analysis of trains. Second Edition [possibly version].
Untitled. [Drawings of cams]
The trains.
Notation of units of apparatus for combining incommensurable cycles (Drawing 142).
Temporary staging
Untitled. [Operations for the Analytical Engine]
Letter from Hardwick to Euston Station Enlargement Committee, regarding the completion of buildings with accompanying report from a member of his staff
Letter from Hardwick to Mr Lund (?) regarding the ‘ornament in the resistance of the new building at Euston Station’
Letter from Robert Stephenson to Captain Constantine Moorsom
Cross-written letter from Miss Smith to Jane Young (nee Hackworth), Vilvorde, Belgium
Pages 62 and 63 of the Robert Stephenson & Co Ltd minute book no.1
Pages 64 and 65 of the Robert Stephenson & Co Ltd minute book no.1
Difference Engine index of parts.
Plan of Difference Engine No. 2. Tracing of BAB A/164.
Digit counting apparatus on the two upper wheel selectors.
Store variable selectors. Superseding drawing No 2.
Motion for carrying the tens, plus and minus.
A draft drawing labelled 'Sheet 3', showing card adding axis, mill adding axis, figure wheels, warning bar and lever and tens lifting slide.
General plan and detail of the driving of the calculating part of Difference Engine No. 2. Tracing of BAB A/161.
End view and side elevation of driving and lifting apparatus.
Lifting apparatus by screw. Sheet 9.
Carriage and racks in sections. Sheet 10.
Side and end elevation of feed motion with shade. Second revision.
Sections of framing and racks. Sheet 6.
Side and end elevation of feed motions. Showing the bands in different colours.
Reverse motion for cross planing.
Back and end elevation of cross slide.
Side and end elevations of feed and driving apparatus
Elevation and section of cross slide.
Small planing machine. Sheet 1.
