THE INDUSTRIAL REVOLUTION OF 1946 — No. 9 An appeal to the commercial instinct An aspect of fuel efficiency that has not been dwelt upon in this series hitherto is the tempting prospects it offers to industrialists of reduced production costs. If ever there was a case of better business being in the national interest, it is to be found in decreasing the industrial consumption of coal, elec- tricity and gas—and still contriving to increase output. Consider the following example of what can be done.