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The first drawing of the circular arrangement of the new engine

Parts of slide tool for Planing machine. Plan, elevation.

Solution of two simultaneous equations

Plan and elevation of a platform for giving circular motion to axes applied as an experiment to the Difference Engine No. 2. Drawing 163.

Elevation of Difference Engine No. 2.

Mechanical notation

Untitled. Appears to be layout of axes on framing of Difference Engine No. 2. Plan of the calculating axis and framing of the Difference Engine.

Untitled. This drawing is a cardboard model.

Tabulation of a cubic by differences

Trains. Vertical motions of axes.

Calculation of the numerical value of a formula

Sketch of a plan for reserving the carriages.

Counting apparatus. Multiplication and division.

Plan 27. Linear arrangement with letter notations.

Drawing of the Difference Engine

Notation for square root.

Elevations and sections of feed motions. Fourth revision.

Plan 16. Arrangement, several partial arrangements, numerous notes.

Skeleton of vertical motions for all operations. Left group. Sheet 2 of 3.

Plan of cams for locking odd Difference figure wheels and for vertical motion of even Difference warning.

Parts of slide for the Planing machine. Plan, elevation

Figure 1. Plan, elevation and detail.

Consecutive counting apparatus.

Motions of the stereotype frames

Sketch of a method of multiplication by means of the directive power stepping. Plans, elevations and details.

Stepping No. 1 on or in central wheels. Figure 1. Figure 2. Various unnumbered elevations, plans and details.

Long pinion for giving off complement. Plan, elevation.

Addition No. 4. Carriage No 6. Elevation and plan.

Paper rollers of the printing apparatus for the Analytical and Difference Engines. Superseded. Plan, elevation.

Vertical positions of the wheels of Plan 28. Sheet 1 of 23.

Calculating machine.

Is A.180x intended

Plan of the calculating part of the Difference Engine

Algebraic addition of n times k figures. Sheet 1 of 3.

Apparatus for combining incommensurable cycles. 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

Tabulation of a quartic by differences

End view of inking printing paper and stereotype apparatus.

Algebraic addition. Sequences of the verticals.

General plan of Analytical Engine, quarter size.

The drawings of the new engine arranged according to the subjects in an alphabetical order.

Plan of cams for punching with small stereotype sectors and cams for removing paper rollers.

Elevation of parts of the card counting apparatus for operation and variable cards.

Drawings of Difference Engine No. 1

Notation for the coefficients of the powers of x Computation of the coefficients of a polynomial from those of another divided by a linear term.

Barrels for square root.

Carriage No. 8. Figure 1. Method of carrying. Plan, elevation.

Plan, elevation and section of cross slide.

Notation of division. Standard Case. Sheet 1 of 12.

Notation of verticals for differences (Notation 334) and stepping up or down Notation 335.