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Figure 2(f) © National Power;
Figure 3 Courtesy of IBM Corporation, Research Division, Almaden Research Center;
Figure 14 'Fuel hoarder sentenced' by Maurice Weaver, printed 6 April 2001, Telegraph Group Limted;
Figure 16 Ann Ronan/Image Select;
Figure 26 © University of California Archives;
Figure 40 © ICI Nobel Explosive Co/Science Photo Library;
Figure 41 © Bancroft Library, University of California;
Figure 53 Johnson Matthey, Royston, Herts.
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