*by Martin F. Johansen, 2013*

This is a list of Babbage's works on the fundamentals of computer science. The three stages are works related to his main designs of machines of increasing complexity. Works marked with * are a subset of the works I recommend for a less comprehensive study.

- Charles Babbage, "Of Induction,"
*Essays on the Philosophy of Analysis*(London: British Library, Additional MS 37202, around 1820s). - Charles Babbage, "On the Division of Mental Labour,"
*Charles Babbage and his Calculating Engines*, 1961, p. 315. (Originally: Economy of Manufacturers and Machinery, 1833)

- *Charles Babbage, “Difference Engine No. 1,”
*Passages from the Life of a Philosopher*, 1864. - *Dionysius Lardner, "Babbage's Calculating Engine,"
*Charles Babbage and his Calculating Engines*, 1961, p. 163. (Originally: Edinburgh Review, 1834) - Charles Babbage, “On the Application of Machinery to the Purpose of Calculating and Printing Mathematical Tables,”
*Charles Babbage and his Calculating Engines*, 1961, p. 298. (Originally: Letter to H. Davy, 1822) - Charles Babbage, "On the Application of Machinery to the Calculation of Astronomical and Mathematical Tables,"
*Memoirs of the Astronomical Society*, Vol. 1. Part 2, London, 1822.

- *Charles Babbage, "On the Theoretical Principles of the Machinery for Calculating Tables”,
*Charles Babbage and his Calculating Engines*, 1961, p. 306. (Originally: Brewster's Journal of Science, 1822) - *Charles Babbage, "Observations on the Application of Machinery to the Computations of Mathematical Tables",
*Charles Babbage and his Calculating Engines*, 1961, p. 311. (Originally: Memoirs if the Astonomical Society, 1822) - Charles Babbage, "On the Determination of the General Term of a New Class of Infinite Series".
*Transactions of the Cambridge Philosophical Scociety*, Vol. 2, pp. 217–225, 1827 (written 1824). - Charles Babbage, Henry P. Babbage (ed.), "Excerpt from the Ninth Bridgewater Treatise,"
*Babbage's Calculating Engines*, 1889.

- *Charles Babbage, “Of the Mechanical Notation,”
*Passages from the Life of a Philosopher*, 1864. - *Charles Babbage, "On a Method of Expressing by Signs the Action of Machinery,"
*Charles Babbage and his Calculating Engines*, 1961, p. 346. (Originally: Philosophical Transactions, Vol. 2, 1826) - *Charles Babbage, "Laws of Mechanical Notation,"
*Charles Babbage and his Calculating Engines*, 1961, p. 357. (Originally: Letter given away at the Exposition of 1851)

- Charles Babbage and Luigi Menabrea, "On the Mathematical Principles of the Analytical Engine,"
*Bibliothèque Universelle de Genève*, 1842 (Originally in French, translated as a part of Sketch of the Analytical Engine from 1843). - *Charles Babbage, Luigi Menabrea, and Ada Lovelace, "Sketch of the Analytical Engine Invented by Charles Babbage,”
*Charles Babbage and his Calculating Engines*, 1961, p. 225. (Originally: Scientific Memoirs, 1843) - *Charles Babbage, “Of the Analytical Engine,”
*Passages from the Life of a Philosopher*, 1864. - Charles Babbage, Letter to Quetelet, May 1835. (Reprinted as a preface to Sketch of the Analytical Engine from 1843.)
- Charles Babbage, "On the Mathematical Powers of the Calculating Engine",
*The Origins of Digital Computers*, 1973, p. 17. (Originally: Letter, 1837) - *Charles Babbage, “The Author's Further Contributions to Human Knowledge,”
*Passages from the Life of a Philosopher*, 1864. - Charles Babbage, "Calculating Engines,"
*Charles Babbage and his Calculating Engines*, 1961, p. 322. (Originally: The Exposition of 1851, 1851) - Henry P. Babbage, “The Analytical Engine”,
*Charles Babbage and his Calculating Engines*, 1961, p. 331. (Originally: Proceedings of the British Association, 1888)

- *Charles Babbage,
*Passages from the Life of a Philosopher*, 1864. - *Charles Babbage, Philip Morrison (ed.), Emily Morrison (ed.),
*Charles Babbage and his Calculating Engines*, 1961. - Charles Babbage, Henry P. Babbage (ed.),
*Babbage's Calculating Engines*, 1889. - Charles Babbage,
*Economy of Manufacturers and Machinery*, 1833. - Brian Randell (ed.),
*The Origins of Digital Computers*, 1973. - Charles Babbage,
*Essays on The Philosophy of Analysis*(London: British Library, Additional MS 37202, around 1820s) - Transactions of the Cambridge Philosophical Scociety, Vol. 2, 1827.

*Copyright © 2013, Martin F. Johansen *