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Untitled. This drawing is a cardboard model.

The first drawing of the circular arrangement of the new engine

Solution of two simultaneous equations

Drawing of the Difference Engine

Plan of motion for carriage slide.

Algebraic addition of k figures.

Notation of units.

Approximative division, continued. Sheet 6 of 12.

Sketch No. 11, circular, arrangement. Shows 27 variables.

Sundry axes and wheels for Plan 28.

General plan and details of cams for driving calculating axes.

Skeleton of vertical motions for all operations. Right groups. Multiplication and division from 372 Sheet 1. Sheet 1 of 3.

Notation of the counting apparatus, et cetera, to suit Notation 39, for multiplication.

Multiplication. Periods of counting apparatus.

Mill. Sheet 1 of 2.

List of the combinations in division performed as in Notation 290, with the cycles in which they occur. Sheet 1 of 4.

Analysis. Sheet 3 of 4.

Sketch 13. General arrangement, circular. Showing 30 variables, 5 barrels with reducing apparatus, punch card mechanism, printing apparatus. Notes introduction of great bevel wheel 18 March 1837.

Elevation arrangements for division. Sheet 20

Vertical movements of axes ordered by left barrel for multiplication compiled in part from a genealogical notation. Sheet 3 of 3.

Steps of trains on barrels of all the groups. Sheet 1 of 5.

Algebraic addition. Sheet 1 of 2.

Multiplication, division and addition for verticals. Sheet six of six.

Algebraic addition if more than 40 figures. Case 8. Sheets 5 and 6 of 6.

Algebraic addition of i k figures. Cycle ordered by vertical "a of centre barrel. Sheet 21 of 23.

Duties of the calculating mechanism of Plan 28a. Centre group. Sheet 3 of 11.

Text relating to drawings

History.

List of verticals on one barrel for division (Notation 290) with the equivalent verticals on five barrels to order the same work.

Cases of common multiplication and their corresponding variations introduced. Sheet 1 of 7.

Division without table. Sheet 4 of 4.

Apparatus for moving stereotype frames for Analytical and Difference Engines. Plan, elevation.

Verticals of algebraic addition of i k figures. Notation 321. Sheet 2 of 3.

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

Calculation of the numerical value of a formula

Algebraic addition of k figures.

Notation of units.

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.

Trains in division.

Sketches of various notations.

List of plates.

Vertical positions of the wheels of Plan 28. Sheet 6 of 23.

Elevation of Difference Engine No. 2.

Analysis of lockings. Right Group. Sheet 1 of 4.

Steps of trains on barrels of all the groups. Sheet 2 of 5.

Algebraic addition of n times k figures. Sheet 5 of 5.

Untitled. [Times of lockings in various cycles for Plan 28]. Sheet 2 of 2.

Reversing sign.

List of the vertical movements in the left middle and right groups distributed by heights and cycles. Sheet 2 of 2.

Plan and elevation of part of the directive of the Difference Engine. Superseded.