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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

Motions of the printing apparatus

Motions of the stereotype frames

Circular motions of the calculating axes

Motions of the stereotype frames

Untitled pencil layout, includes mill racks.

Untitled. [Drawings of cams]

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

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.

Multiplication with three multiples. Sheet 2 of 2.

Approximative multiplication. Summary of multiplication. Sheet 2 of 5.

Verticals for governing A et cetera for algebraic additions, notation 170. Sheet 2 of 2.

Algebraic addition of i k figures. Sheet 8 of 8.

Algebraic addition of i k figures. Sheet 6 of 8.

Verticals for two barrels for counting apparatus for multiplication. Notation 268. Sheet 4 of 4.

Algebraic addition of k figures adapted to General Plan 28. Sheet 1 of 4.

Algebraic addition of i k figures. Sheet 3 of 8.

Algebraic addition of i k figures. Sheet 2of 8.

Verticals of the counting apparatus barrel number 1. Sheet 8 of 9.

Untitled. [Trains and vertical motions of the wheels and axes of the right, middle and left groups of Plan 28a for division as performed in working Notation 290]. Sheet 3 of 4.

Untitled. [Trains and vertical motions of the wheels and axes of the right, middle and left groups of Plan 28a for division as performed in working Notation 290]. Sheet 2 of 4.

Algebraic addition. Sheet 1 of 2.

Vertical motions of the wheels and axes of the middle group of Plan 28 for algebraic addition of i k figures as performed in Notation 321. Sheet 1 of 2.

Verticals for algebraic addition of k figures. One barrel. Sheet 2 of 2.

Vertical motions of the wheels and axes of the centre group. Plans 28 and 28a. Sheet 2 of 4.

Vertical positions of some of the wheels of Plan 28a. Notation 348 cycles. Sheet 1 of 13.

Centre group. Sheet 3 of 5

Trains and vertical motions of the wheels and axes of the right, middle and left groups of Plan 28a for multiplication as performed in working Notation 268. Sheet 1 of 3.

Notation 331 cycle 23 and 24. Sheet 10 of 13.

Notation 348 cycles 26 and 27. Sheet 7 of 13.

Untitled. [Vertical positions of some of the wheels of Plan 28a. Notation 348 and 331 cycles]. Sheet 11 of 13.

Notation of units for mill counting apparatus drawings 125, 126 and 137 and for sign wheel drawing. Sheet 6 of 6.

List of the combinations in division performed as in Notation 290, with the cycles in which they occur. Sheet 2 of 4.

Untitled. [List of the combinations in division performed as in Notation 290, with the cycles in which they occur] Sheet 4 of 4.

List, et cetera. [List of the combinations in division performed as in Notation 290, with the cycles in which they occur] Sheet 3 of 4.

Table group. Sheet 5 of 5.

Skeleton of vertical motions for all operations. Centre group. Sheet 3 of 3.

Untitled. [Operations for the Analytical Engine]

Drawing entitled 'Sectional Drawing for a Steel Protected Cruiser for Colonial Defence to be named'

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.

Lifting apparatus by screw. Sheet 9.

Carriage and racks in sections. Sheet 10.

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