Letters patent granted to Thomas Farmer for 'Improvements in treating Pyrites to obtain Sulphur, Sulphurous Acid and other products'
Copy letter from Isambard Kingdom Brunel to the Directors of the Great Western Railway
Sketch books of drawings of fragments recovered from the shipwrecks of the Royal George and the Edgar
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"
Drawing entitled 'Sectional Drawing for a Steel Protected Cruiser for Colonial Defence to be named'
Elevation of parts of middle group drawn in plan on No. 127.
Visitors pass
Plan 17, store on a rack. Arrangement.
Arrangement and rack of Plan 25
Carriage by vertical chain. Plan, elevation.
Figure 1. Clutch et cetera for driving the adding axes. Plan, elevation.
Plan and section of an 8 inch figure wheel; hoarding carriage and framing plate. Plan, elevation.
Sketch of central wheel and principal framing. Plan, elevation.
Plan 27. Linear arrangement with letter notations.
Plan No. 24. Arrangement and rack, rearrangement or notes.
Locking motions for carriage column.
General Plan No. 23. Arrangement and rack.
Plan of an improved carriage by vertical chain, and a page of handwritten notes
Plan of the left half to middle group for General Plan 28.
Plan of consecutive mill counting apparatus for General Plan 28. Plan, note.
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 Superseded.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.
Parts of the slide for Planing machine. Plan, elevation.
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.
Motions of the printing apparatus
Chuck for Planing machine. Plan, elevation.
Motions of the stereotype frames
Circular motions of the calculating axes
Motions of the stereotype frames
Parts of slide for the Planing machine. Plan, elevation
Sketch of an apparatus for lifting the axes of the Analytical Engine. Plan, elevation.
Standard case of approximate multiplication. Sheet 3 of 4.
Approximative division. Standard case. Sheet 4 of 12.
Division, continued. Sheet 2 of 12.
Multiplication. Sheet 1 of 4.
36 variations of approximative division. Sheet 12 of 12.
Approximative division, continued. Sheet 10 of 12.
Verticals for multiplication. Notation 108.
Untitled pencil layout, includes mill racks.
Approximative division, continued. Sheet 7 of 12.
Approximative division, continued. Sheet 8 of 12.
Verticals for division. Sheet 1 of 4.
Verticals for approximative division. Sheet 2 of 4.
General notation of directive.
Case of division used while discussing the selectors. Sheet 1 of 3.
Addition and subtraction of 120 figures. Sheet 3 of 3.
