Melksham Turnpike Trust
Letters patent granted to Thomas Clarke and John Varley for 'An improvement on the atmospheric system of propulsion which is also applicable to other motive purposes'
Volume entitled: "[Record of] Lead ore raised at Longstone Edge Mines, Sampled ... and sold"
Volume entitled; "Specimens of turning by Henry Perrigal Esqr. and given by him to Jas. Wilcox"
Volume entitled: "Customs of Mendipp Mines"
Volume entitled: "Longstone Edge Mines, In Derbyshire"
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.
Carriage by vertical chain. Plan, elevation.
Plan 27. Linear arrangement with letter notations.
Locking motions for carriage column.
Plan of the left half to middle group for General Plan 28.
Sign apparatus for Plan 28a. Plan, elevation.
Plan of consecutive mill counting apparatus for General Plan 28. Plan, note.
Plan and elevation for the calculating part of the Difference Engine. Figure 1. Superseded. Consecutive carriage.
Sketch of an apparatus for advancing stereotype frames of the Difference Engine by cranks and backing them by weights. Superseded. Plan, elevation.
Axes D1 E1 for the left hand group of Plan 28. Plan, elevation.
Plan titled, 'Various arrangements proposed, examined and rejected between the rejection of Plan 27 and the adoption of Plan 28. Figures 1, 2, 3, 4, 9. Various', and a folded sheet of notes
First sketch of all the parts in plan of the right half to middle group of General Plan 28. Plan, elevation.
Sundry axes and wheels for Plan 28.
Speculations on the driving and directive for the Difference Engine. Superseded. Arrangements.
Improved framing for centre group of Plan 28. Arrangement, plan.
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 Superseded.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 Superseded.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.
Parts of the slide for the Planing machine. 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.
Figures 1 and 2. Sketches of a tens chain for carriage for whole and half zero. Plan, elevation.
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.
Untitled pencil layout, includes mill racks.
Algebraic addition of K figures
Sketches of algebraic addition.
Multiplication. Sketches of Notations.
Sketches of algebraic addition.
Algebraic addition of K figures.
Sequences of the verticals for algebraic addition of k figures.
Algebraic addition of K figures. Sequences of the verticals and the work ordered by each vertical. Sheet 1 of 2.
Sequences of the verticals for algebraic addition of K figures. Sheet 2 of 2
Compound addition or addition of n k figures. Notation of cards for compound addition.
