1. See Maxine Berg's seminal work, The machinery question and the making of political economy 1815–1848 (Cambridge, 1980), 2, 83, 153, 211, and 325.
2. Marx Karl, Grundrisse (1857–58), transl. by Nicolaus Martin (Harmondsworth, 1973), 692 and 704.
3. Babbage's Intelligence: Calculating Engines and the Factory System
4. Memory, Efficiency, and Symbolic Analysis: Charles Babbage, John Herschel, and the Industrial Mind
5. A Social History of Truth