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Trains of addition. Sheet 2 of 3.

Genealogy of multiplication. One barrel. Sheet 2 of 2.

Multiplication. Sketch from which Notations 259 and 268 were made.

General notation of possible trains. Sheet 1 of 3.

Duties of the mill counting apparatus which require the cycle of a(=12) units for Plan 28a. Sheet 2 of 2.

Division. Periods of counting apparatus.

Vertical positions of the wheels of Plan 28. Sheet 15 of 23.

Vertical motions of the wheels and axes of the centre group. Sheet 3 of 4.

Common multiplication for Plan 28. Sheet 8 of 8.

Case of division illustrating the method of selecting + or - quotient figures with one set of selectors.

Notation for lifters for division by table, continued. Sheet 2 of 2.

Multiplication. Sketches of Notations.

Algebraic addition.

Number of parts and working points.

Working Drawing for No 136 Locomotive

Algebraic addition. Sheet 3 of 3.

Division. Sheet 13 of 15.

Verticals on one great barrel for algebraic addition. Sheet 4 of 4.

Selectors, drawings 82 and 83, using. Sheet 2 of 4.

Notation of units for General Plan 28a. Sheet 3 of 6.

Untitled. [Vertical motions of the wheels and axes of the right, middle and left groups of Plan 28 for multiplication as performed in working Notation 268]. Sheet 2 of 4.

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

List of the cases in division as performed in Notation 290.

Sketches of notations. Table making for multiplication and division.

Sketches of various notations. Sheet 2 of 2.

Division. Sheet 8 of 15.

Vertical movements of axes ordered by left barrel for division. Sheet 3 of 3.

Sequences of the verticals on each barrel for algebraic addition of k figures. Sheet 1 of 2.

Addition and subtraction with signs and position of the verticals.

Directive of algebraic addition.

List of cycles with their vertical motions.

Analytical Engine. Notation of units of incommensurable cycle wheel.

Untitled. [Verticals. Motions of the wheels and axes for Plan 28]. Sheet 1 of 2.

Aquatinted illustration - Entrance of the Railway at Edge Hill, Liverpool

Selecting apparatus similar to that described in Sketch Book volume 3, page 54.

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

158 daguerreotypes in original cabinet, 1 box containing Ellis's photography notes, 1 box containing copy negatives, 1 box containing conservation materials

The Ellis Collection of Daguerreotypes of Italy

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

Side elevation of the Rocket locomotive engine

Calculating machine.

Engraving of 'Lake Thirlmere or Wythburn Water, Cumberland'

Liverpool Engine C drawing

220

Account of the construction of the Morley Tunnel, Leeds Dewsbury & Manchester Railway

Plan of the Analytical Engine without lettering.

320

Correspondence concerning the Ordnance Survey from Joseph Banks and others

Axes D E G H for the right hand group of Plan 28.

Aquatinted illustration - Railway Office, Liverpool

Algebraic addition.

330

Discussion by Maudslay, Sons and Field? of James Surrey's method of generating steam by utilising the waste heat of coke ovens

250

Letter from Thomas Henry Maudslay to Joshua Field