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Scottish letters patent granted to Thomas Farmer for obtaining sulphur, sulphurous acid and other products from pyrites

Letters patent granted to Thomas Farmer for 'Improvements in treating Pyrites to obtain Sulphur, Sulphurous Acid and other products'

Account of the construction of the Morley Tunnel, Leeds Dewsbury & Manchester Railway

Melksham Turnpike Trust

Diary of John Watson, London & Greenwich Railway Co

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'

Sketch books of drawings of fragments recovered from the shipwrecks of the Royal George and the Edgar

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"

Pages 140 and 141 of John Graham's report book 1838-1845

Difference Engine index of parts.

Plan of Difference Engine No. 2. Tracing of BAB A/164.

On putting letters to drawings, in draft.

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.

Apparatus for registering the quotient adapted to Plan 28a.

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

Small planing machine. Sheet 1.

End and side elevation of Large Universal Machine.

Elevation and section of cross slide.

Plan, elevation and section of cross slide.

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

Plan of Large Universal Machine.

End view of inking printing paper and stereotyping apparatus. Tracing of BAB A/172.

Untitled plan and elevation. Incomplete.

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

Platform raising apparatus. Sheet 33.

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

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

Notation for computing the elliptic radius vector by having the eccentricity and the mean anomaly

List of plates.

List of sizes of the notations of the Analytical Engine.

Reduction of the three equations

Untitled [Arrows indicating different forms of drive and connection].

Untitled [Arrows indicating different forms of drive and connection].