1. Clive Barker, ‘What training — For what theatre?’, New Theatre Quarterly, 11(42) (May 1995), pp. 99–108; p. 99.
2. Lupino Lane, How to Become a Comedian, London: Frederick Muller, 1945, pp. 55–56.
3. Chris Dell, ‘The Dehl Trio’, Call Boy, 47(1) (spring 2010), pp. 14–15; p. 14.
4. Ernest W. Low, ‘Acrobats and how they are trained’, Strand Magazine, 10 (Jul.–Dec. 1895), repr. in Charlie Holland, Strange Feats & Clever Turns, London: Holland & Palmer, 1998, pp. 52–59; p. 52.
5. Quoted in Peter Jelavich, Berlin Cabaret, Cambridge, MA and London: Harvard University Press, 1996, p. 180.