


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"

Difference Engine index of parts.

Digit counting apparatus on the two upper wheel selectors.

Store variable selectors. Superseding drawing No 2.

Motion for carrying the tens, plus and minus.

Long pinions in the position for stepping. Adding wheels and short pinions behind long wheels.

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.

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.

Elevation and section of cross slide.

End and side elevation of Large Universal Machine.

Plan, elevation and section of cross slide.

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

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.

Reduction of three simultaneous equations in three variables to two simultaneous equations in two variables

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

My Machine 1889 III Development of driving cams.

Sheet 1. Successive reduction of three simultaneous equations in three variables to find the solution for one variable.

Sheet 2. Successive reduction of five simultaneous equations in five variables to find the solution for one variable.

Pages 106 and 107 of the Notebook of John Urpeth Rastrick

Pages 92 and 93 of the Notebook of John Urpeth Rastrick

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

Pages 54 and 55 of John Graham's report book 1831-1833

Pages 108 and 109 of John Graham's report book 1831-1833

Pages 56 and 57 of John Graham's report book 1831-1833

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Pages 171 and 172 of John Graham's report book 1831-1833
