1. Tawney, ‘The Abolition of Economic Controls’.
2. W. Ashworth, An Economic History of England 1870–1939 (1960) p. 284.
3. Cab 23/20, 8 (20) appx iii.
4. See Page Arnot, The Miners, vol. ii, p. 238.
5. Taking March 1915 as a base of 100 ‘output per unit of labour’ in the industry as a whole had fallen to 77.4 by May 1920. Redmayne, op. cit., p. 236.