& Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford:Butterworth-Heinemann. ISBN 0-7506-3365-4 . ^ See Laurel and Hardy ‘s Tit for Tat (1935) or The Three Stooges ‘ No Census No Feeling (1940). [ edit ] External links Look up alum in Wiktionary, the free dictionary. Media related to Alum at Wikimedia