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Marshall's Geological Diagrams

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"

Gazeteer of Mines in Chili (Chile)

Notation for Swedish Difference Engine

Catalogue of Useful Inventions for Cotton Spinners, Manufacturers and for all textile trades

An edition of 'The Photogram' journal vol. 2 no. 17

Drawing of Egyptian Railway Nos 995, 996, 1021, 1022

Railway Signal Volume 3 (1885)

General plan of the Analytical Engine, half size.

Small planing machine. Sheet 1.

Plan of mill, table wheels and carriage. Sheet 31.

Drawing entitled 'Sectional Drawing for a Steel Protected Cruiser for Colonial Defence to be named'

Notation of the Analytical Engine

Drawing entitled 'Sheer Drawing for a Steel Protected Crusier for Colonial Defence to be named'

An edition of 'The Photogram' journal vol. 5 no. 50

Store variable selectors. Superseding drawing No 2.

My Machine 1888 II Plan of driving cams, levers, etc. in initial position.

Lifting apparatus by screw. Sheet 9.

Platform raising apparatus. Sheet 33.

Sections of framing and racks. Sheet 6.

Adding column with motion for changing from plus to minus. Incomplete.

Untitled. A model of six cages was made from this drawing. Incomplete.

Rising platform and selectors for variable columns in store one to each half of store. Quarter size.

Counting digits, end elevation and printing side elevation.

Locking motions for carriage column.

Motion for carrying the tens, plus and minus.

Reverse motion for cross planing.

Carriage and racks in sections. Sheet 10.

Experimental planing machine

Elevation and section of cross slide.

Side and end elevation of feed motions. Showing the bands in different colours.

Rough draft of throw out motion for feed apparatus.

Circular mill. Various plans. Sheet 16.

Small Experimental Machine. Sheet 2.

Probably a plan of carriage and figure columns.

Digit counting apparatus on the two upper wheel selectors.

My Machine 1889 III Development of driving cams.

Side and end elevation of feed motion with shade. Second revision.

Untitled plan and elevation. Incomplete.

Untitled. [Drawings of cams]

Letter from Robert Stephenson to Samuel Smiles

Untitled. [Operations for the Analytical Engine]

Letter from Robert Stephenson to Samuel Smiles

Selectors for division and multiplication.

Part of the end view of the Difference Engine

Back and end elevation of cross slide.

Elevations and sections of feed motions. Fourth revision.

Small Universal Machine.

Plan, elevation and section of cross slide.

End and side elevation of Large Universal Machine.