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---. Charles Babbage on the Principles and Development of the Calculator. Ed. Philip Morrison and Emily Morrison. New York: Dover Publications, Inc., 1961.

---. Passages from the Life of a Philosopher. London: Longman, Green, Longman, Roberts, and Green, 1864.

---. Science and Reform: Selected Works of Charles Babbage. Ed. Anthony Hyman. Cambridge: Cambridge University Press, 1989.

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