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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"

Temporary staging

Elevation of parts of middle group drawn in plan on No. 127.

Carriage by vertical chain. Plan, elevation.

Digit counting apparatus on the two upper wheel selectors.

Store variable selectors. Superseding drawing No 2.

Plan of the left half to middle group for General Plan 28.

Plan of consecutive mill counting apparatus for General Plan 28. Plan, note.

Motion for carrying the tens, plus and minus.

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 Superseded.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.

Lifting apparatus by screw. Sheet 9.

Carriage and racks in sections. Sheet 10.

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

Parts of the slide for Planing machine. Plan, elevation.

Sections of framing and racks. Sheet 6.

Anticipating whole and half zero digit counting carriage. Plan, elevation and details.

Elevation of parts of the card counting apparatus for operation and variable cards.

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.

Motions of the printing apparatus

Motions of the stereotype frames

Chuck for Planing machine. Plan, elevation.

Side and end elevations of feed and driving apparatus

Circular motions of the calculating axes

Small planing machine. Sheet 1.

Elevation and section of cross slide.

End and side elevation of Large Universal Machine.

Plan, elevation and section of cross slide.

Motions of the stereotype frames

Plan of left half of middle group for General Plan 28.

Parts of slide for the Planing machine. Plan, elevation

Sketch of an apparatus for lifting the axes of the Analytical Engine. Plan, elevation.

Plan of Large Universal Machine.

Untitled plan and elevation. Incomplete.

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

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

Platform raising apparatus. Sheet 33.

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

Untitled pencil layout, includes mill racks.

Untitled. [Drawings of cams]

Difference Engine index of parts.

Cross-written letter from Miss Smith to Jane Young (nee Hackworth), Vilvorde, Belgium

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

My Machine 1889 III Development of driving cams.

Locking motions for carriage column.

Selectors, drawings 82 and 83, using. Sheet 2 of 4.

Selectors, drawings 82 and 83, reducing to zero. Sheet 4 of 4.