“…Whereas symbolic readings (e.g., Knight, 1991;Knight et al, 1995;Power, 2001;Power and Aiello, 1997;Power and Watts, 1997;Watts, 1999Watts, , 2002Watts, , 2009 draw largely from ethnographic (Bleek and Lloyd, 1911;Marshall, 1961Marshall, , 1976Viegas Guerreiro, 1968) and historical accounts (Campbell, 1815;Burchell, 1822;Methuen, 1846;Stow, 1905;Silberbauer, 1965), functional interpretations (e.g., Keeley, 1980;Velo, 1984;Roper, 1991;Mahaney et al, 2000;Riel-Salvatore and Clark, 2001;Wadley et al, 2004Wadley et al, , 2009Lombard, 2007;Arocena et al, 2008;Prinsloo et al, 2008;Chambers, 2010) derive mainly from archaeological evidence and experimental results.…”