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'
Cross-written letter from Miss Smith to Jane Young (nee Hackworth), Vilvorde, Belgium
Pages 62 and 63 of the Robert Stephenson & Co Ltd minute book no.1
Locking motions for carriage column.
Sign apparatus for Plan 28a. Plan, elevation.
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 Superseded.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 Superseded.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.
Speculations on the driving and directive for the Difference Engine. Superseded. Arrangements.
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 Superseded.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 Superseded.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.
Motions of the printing apparatus
Motions of the stereotype frames
Circular motions of the calculating axes
Motions of the stereotype frames
Sketch of an apparatus for lifting the axes of the Analytical Engine. Plan, elevation.
Untitled pencil layout, includes mill racks.
Duties of the mill counting apparatus which require the cycle of a(=12) units for Plan 28a. Sheet 2 of 2.
Trains and vertical motions of the wheels and axes ordered by barrel no. 2 of the mill counting apparatus of Plans 28 and 28a for division, as performed in working Notation 290. Sheet 2 of 2.
Trains and vertical motions of the wheels and axes of the table group of Plan 28a for division, as performed in working Notation 290 and for ascertaining if a variable has a + or - sign.
Trains and vertical motions of the wheels and axes of the table group of Plan 28a for multiplication, as performed in working Notation 268 and for stepping up or down.
Centre group. Sheet 3 of 5
Trains and vertical motions of the wheels and axes ordered by barrel no. 1 of the mill counting apparatus of Plans 28 and 28a for multiplication, as performed in the working Notation 268. Sheet 1 of 2.
Notation of periods for the centre group.
Notation of periods for mill counting apparatus.
Notation of periods for right group. Sheet 5 of 5.
Notation of units for mill counting apparatus drawings 125, 126 and 137 and for sign wheel drawing. Sheet 6 of 6.
Analysis of the lockings on the left group. Sheet 4 of 4.
Duties of the calculating mechanism of Plan 28a table group. Sheet 2 of 2.
Notation of units anticipating whole zero cycles by circular chain.
Duties of the calculating mechanism of Plan 28a table group. Sheet 1 of 2.
List of the combinations in division performed as in Notation 290, with the cycles in which they occur. Sheet 2 of 4.
List of the cases in multiplication as performed in Notation no. 268.
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.
Untitled.[Skeleton of vertical motions of mill counting apparatus barrel no. 2.] Sheet 6 of 6.
Table group. Sheet 5 of 5.
Skeleton of vertical motions for all operations. Centre group. Sheet 3 of 3.
Untitled. [Drawings of cams]
Skeleton of vertical motions for all operations. Left group. Sheet 2 of 3.
Skeleton of vertical motions of centre group. Sheet 2 of 6.
Skeleton of vertical motions of left group. Sheet 1 of 6.
Combination of the cycles of the groups, right, centre, left, table. Sheet 2 of 2.
Untitled. [Skeleton of vertical motions of mill counting apparatus barrel no. 1]. Sheet 5 of 6.
Untitled. [Skeleton of vertical motions of table group. Sheet 4 of 6.
Temporary staging
Untitled. [Operations for the Analytical Engine]
