Charles Babbage's First Difference Engine
Photo of the 1832 Fragment of a Difference Engine Picture of Babbage from Mechanical Magazine
[Click on images to enlarge]
Archives
Difference Engine No.1 Surviving Archives and Other Sources Archives List
History by C.J.D. Roberts History of Difference Engine No. 1
Origin of Motion Charts for DE1 Origin of Motion Chart for DE1
On the Mathematics of Babbage's First Difference Engine Method of Differences
Benjamin Herschel Babbage's Manual to operate Difference Engine BH Babbage Manual
Marshall's Description of the operation of the 1832 Fragment Difference Engine Marshall
Babbage's Difference Engine: How it was intended to work Babbage's First Difference Engine
Analysis of the Expenditure on Babbage's Difference Engine No.1 Expenditure
Letters from the Bromhead Collection Bromhead
Letters etc. form the Forbes Collection Forbes
Croker Papers Croker
Baron de Prony's Description of the Construction of Tables by the Method of Diffferences Prony
Various Pictures of Babbage Babbage Pictures
Various Pictures and Graphics Pictures
Maps and Plans Maps
Correspondence in the British Libary Manuscripts Department
VOL 1 1820 - 1833
VOL 2 1833 - Undated
Sir Robert Peel Correspondence Peel
Royal Society Herschel Collection Babbage-Herschel
JFW Herschel's letter to the Chancellor of the Exchequer 1842 Herschel_Letter
Correspondence in the Public Record Office
a) Public Records Office Kew
Archives of the British Government Treasury Department Treasury Papers
Accounts Account1
Account2
Account3
Authorisation for Building Works
b) Public Records Offfice Chancery Lane
Minute Books of the Board of Commissioners of the Office of Woods, &c Minutes
Constat Book of Office of Woods, Forests & Land Revenues CRES6
Specification of the Building intended to house Babbage's Difference Engine Building Specification
Letter from William and Lewis Cubitt to Works and Buildings Dept Works
Miscellaneous
Web pages from the Hungarian Academy of Sciences
Babbage's Letter to Sir Humphry Davy July 3, 1822
Babbages Journal
Biography of Joseph Clement in Smiles' Industrial Biography
On the Division of Labour by Charles Babbage for the Economy of Machinery and Manufactures
Article in Annual Register
British Critic
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