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Algebraic addition of i k figures (General Plan 28). Cycle ordered by vertical ""s of centre barrel. Sheet 23 of 23.

Trains ordered by one barrel on group "F and group "A. Sheet 1 of 2.

Bars and levers for lifting axes of the Difference Engine No. 2. Plan.

11 plan press drawers and 8 linear meters of shelving

The Babbage Papers

Elevations and plans of printing apparatus. Experimental sketches for mill and store plans.

Method of governing barrels et cetera. No. 1, plan of elevation.

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

Notation and description of the carriage drawn on Notation 81.

Ordinary cycle of 16.

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.

Second arrangement of the verticals for one barrel to perform multiplication in the manner exhibited on Notation 268 and with General Plan 28 and 28a.

Directive of addition.

Plan of mill. Sheet 35. Superseded by Sheet 36.

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.

Parts of plan, elevation and section of rising platforms for store. Superseded in following sheet.

Duties of the calculating mechanism of Plan 28a. Centre group. Sheet 7 of 11.

Notation of multiplication with hoarded carriages, beginning with the lowest figure multiplier. Sheet 2 of 2.

End elevation from the calculating end of the Difference Engine

Untitled. Shows plans and elevations of store wheels, mill, mill wheel cages, carriages and framing.

General Plan No. 23. Arrangement and rack.

Plan No. 24. Arrangement and rack, rearrangement or notes.

Enumeration of trains on groups I and "F.

Untitled. [Vertical positions of some of the wheels of Plan 28a. Notation 348 and 331 cycles]. Sheet 12 of 13.

Untitled. [Notations 224 and 321. List of operations.]

Notation of units.

Sketch of an anticipating whole and half zero carriage. Plan, elevation.

Untitled. This drawing is a cardboard model.

Motions of some of the axes for Plan 28. Sheet 3 of 8.

Notation of verticals for working Notations 332 and 333.

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

[Lockings (circular) of Plan 28]. Sheet 2 of 2.

Mill counting apparatus. Consecutive elevation.

Untitled. Plan of the universal and general locking plates. Plan and elevation of the locked arms.

Sketches of cams for consecutive carriage.

Untitled. [Skeleton of vertical motions of right group]. Sheet 3 of 6.

Extraction of square root. Sheet 4 of 4.

Scribbling Book Volume V. Important matter of history in the Analytical Engine.

Mill counting apparatus. Consecutive plan.

Division without table. Sheet 2 of 4.

Algebraic addition of k figures.

Notation of units.

Untitled, showing details of parts, including figure wheel to receive addition.

Approximative division, continued. Sheet 6 of 12.

Analysis of verticals on left group for multiplication.

Stepping ruled by operation cards.

Notation of units, multiplication

General plan and details of cams for driving calculating axes.

Sketches of mill used for arranging operations on the engine of four wheels in each cage from April 1836 - August 1837.

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