• The name of the performer who entertained cabaret audiences as Le Pétomane was Joseph Pujol (19/26 December 2015, p 58).
• Don’t get lost in cyberspace: to trace the path of your data on a Macintosh or Unix-flavoured computer, type the command traceroute into the terminal window (12 December 2015, p 30).
• The Japanese cult Aum Shinrikyo launched chemical attacks in 1994 and 1995 (28 November 2015, p 30).
